/* * turbostat -- show CPU frequency and C-state residency * on modern Intel turbo-capable processors. * * Copyright (c) 2013 Intel Corporation. * Len Brown * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. */ #define _GNU_SOURCE #include MSRHEADER #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include char *proc_stat = "/proc/stat"; unsigned int interval_sec = 5; /* set with -i interval_sec */ unsigned int verbose; /* set with -v */ unsigned int rapl_verbose; /* set with -R */ unsigned int rapl_joules; /* set with -J */ unsigned int thermal_verbose; /* set with -T */ unsigned int summary_only; /* set with -S */ unsigned int dump_only; /* set with -s */ unsigned int skip_c0; unsigned int skip_c1; unsigned int do_nhm_cstates; unsigned int do_snb_cstates; unsigned int do_c8_c9_c10; unsigned int do_slm_cstates; unsigned int use_c1_residency_msr; unsigned int has_aperf; unsigned int has_epb; unsigned int units = 1000000; /* MHz etc */ unsigned int genuine_intel; unsigned int has_invariant_tsc; unsigned int do_nehalem_platform_info; unsigned int do_nehalem_turbo_ratio_limit; unsigned int do_ivt_turbo_ratio_limit; unsigned int extra_msr_offset32; unsigned int extra_msr_offset64; unsigned int extra_delta_offset32; unsigned int extra_delta_offset64; int do_smi; double bclk; unsigned int show_pkg; unsigned int show_core; unsigned int show_cpu; unsigned int show_pkg_only; unsigned int show_core_only; char *output_buffer, *outp; unsigned int do_rapl; unsigned int do_dts; unsigned int do_ptm; unsigned int tcc_activation_temp; unsigned int tcc_activation_temp_override; double rapl_power_units, rapl_energy_units, rapl_time_units; double rapl_joule_counter_range; #define RAPL_PKG (1 << 0) /* 0x610 MSR_PKG_POWER_LIMIT */ /* 0x611 MSR_PKG_ENERGY_STATUS */ #define RAPL_PKG_PERF_STATUS (1 << 1) /* 0x613 MSR_PKG_PERF_STATUS */ #define RAPL_PKG_POWER_INFO (1 << 2) /* 0x614 MSR_PKG_POWER_INFO */ #define RAPL_DRAM (1 << 3) /* 0x618 MSR_DRAM_POWER_LIMIT */ /* 0x619 MSR_DRAM_ENERGY_STATUS */ /* 0x61c MSR_DRAM_POWER_INFO */ #define RAPL_DRAM_PERF_STATUS (1 << 4) /* 0x61b MSR_DRAM_PERF_STATUS */ #define RAPL_CORES (1 << 5) /* 0x638 MSR_PP0_POWER_LIMIT */ /* 0x639 MSR_PP0_ENERGY_STATUS */ #define RAPL_CORE_POLICY (1 << 6) /* 0x63a MSR_PP0_POLICY */ #define RAPL_GFX (1 << 7) /* 0x640 MSR_PP1_POWER_LIMIT */ /* 0x641 MSR_PP1_ENERGY_STATUS */ /* 0x642 MSR_PP1_POLICY */ #define TJMAX_DEFAULT 100 #define MAX(a, b) ((a) > (b) ? (a) : (b)) int aperf_mperf_unstable; int backwards_count; char *progname; cpu_set_t *cpu_present_set, *cpu_affinity_set; size_t cpu_present_setsize, cpu_affinity_setsize; struct thread_data { unsigned long long tsc; unsigned long long aperf; unsigned long long mperf; unsigned long long c1; unsigned long long extra_msr64; unsigned long long extra_delta64; unsigned long long extra_msr32; unsigned long long extra_delta32; unsigned int smi_count; unsigned int cpu_id; unsigned int flags; #define CPU_IS_FIRST_THREAD_IN_CORE 0x2 #define CPU_IS_FIRST_CORE_IN_PACKAGE 0x4 } *thread_even, *thread_odd; struct core_data { unsigned long long c3; unsigned long long c6; unsigned long long c7; unsigned int core_temp_c; unsigned int core_id; } *core_even, *core_odd; struct pkg_data { unsigned long long pc2; unsigned long long pc3; unsigned long long pc6; unsigned long long pc7; unsigned long long pc8; unsigned long long pc9; unsigned long long pc10; unsigned int package_id; unsigned int energy_pkg; /* MSR_PKG_ENERGY_STATUS */ unsigned int energy_dram; /* MSR_DRAM_ENERGY_STATUS */ unsigned int energy_cores; /* MSR_PP0_ENERGY_STATUS */ unsigned int energy_gfx; /* MSR_PP1_ENERGY_STATUS */ unsigned int rapl_pkg_perf_status; /* MSR_PKG_PERF_STATUS */ unsigned int rapl_dram_perf_status; /* MSR_DRAM_PERF_STATUS */ unsigned int pkg_temp_c; } *package_even, *package_odd; #define ODD_COUNTERS thread_odd, core_odd, package_odd #define EVEN_COUNTERS thread_even, core_even, package_even #define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \ (thread_base + (pkg_no) * topo.num_cores_per_pkg * \ topo.num_threads_per_core + \ (core_no) * topo.num_threads_per_core + (thread_no)) #define GET_CORE(core_base, core_no, pkg_no) \ (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no)) #define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no) struct system_summary { struct thread_data threads; struct core_data cores; struct pkg_data packages; } sum, average; struct topo_params { int num_packages; int num_cpus; int num_cores; int max_cpu_num; int num_cores_per_pkg; int num_threads_per_core; } topo; struct timeval tv_even, tv_odd, tv_delta; void setup_all_buffers(void); int cpu_is_not_present(int cpu) { return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set); } /* * run func(thread, core, package) in topology order * skip non-present cpus */ int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *), struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base) { int retval, pkg_no, core_no, thread_no; for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { for (thread_no = 0; thread_no < topo.num_threads_per_core; ++thread_no) { struct thread_data *t; struct core_data *c; struct pkg_data *p; t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); if (cpu_is_not_present(t->cpu_id)) continue; c = GET_CORE(core_base, core_no, pkg_no); p = GET_PKG(pkg_base, pkg_no); retval = func(t, c, p); if (retval) return retval; } } } return 0; } int cpu_migrate(int cpu) { CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set); if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1) return -1; else return 0; } int get_msr(int cpu, off_t offset, unsigned long long *msr) { ssize_t retval; char pathname[32]; int fd; sprintf(pathname, "/dev/cpu/%d/msr", cpu); fd = open(pathname, O_RDONLY); if (fd < 0) return -1; retval = pread(fd, msr, sizeof *msr, offset); close(fd); if (retval != sizeof *msr) { fprintf(stderr, "%s offset 0x%llx read failed\n", pathname, (unsigned long long)offset); return -1; } return 0; } /* * Example Format w/ field column widths: * * Package Core CPU Avg_MHz Bzy_MHz TSC_MHz SMI %Busy CPU_%c1 CPU_%c3 CPU_%c6 CPU_%c7 CoreTmp PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt GFXWatt * 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 */ void print_header(void) { if (show_pkg) outp += sprintf(outp, "Package "); if (show_core) outp += sprintf(outp, " Core "); if (show_cpu) outp += sprintf(outp, " CPU "); if (has_aperf) outp += sprintf(outp, "Avg_MHz "); if (do_nhm_cstates) outp += sprintf(outp, " %%Busy "); if (has_aperf) outp += sprintf(outp, "Bzy_MHz "); outp += sprintf(outp, "TSC_MHz "); if (do_smi) outp += sprintf(outp, " SMI "); if (extra_delta_offset32) outp += sprintf(outp, " count 0x%03X ", extra_delta_offset32); if (extra_delta_offset64) outp += sprintf(outp, " COUNT 0x%03X ", extra_delta_offset64); if (extra_msr_offset32) outp += sprintf(outp, " MSR 0x%03X ", extra_msr_offset32); if (extra_msr_offset64) outp += sprintf(outp, " MSR 0x%03X ", extra_msr_offset64); if (do_nhm_cstates) outp += sprintf(outp, " CPU%%c1 "); if (do_nhm_cstates && !do_slm_cstates) outp += sprintf(outp, " CPU%%c3 "); if (do_nhm_cstates) outp += sprintf(outp, " CPU%%c6 "); if (do_snb_cstates) outp += sprintf(outp, " CPU%%c7 "); if (do_dts) outp += sprintf(outp, "CoreTmp "); if (do_ptm) outp += sprintf(outp, " PkgTmp "); if (do_snb_cstates) outp += sprintf(outp, "Pkg%%pc2 "); if (do_nhm_cstates && !do_slm_cstates) outp += sprintf(outp, "Pkg%%pc3 "); if (do_nhm_cstates && !do_slm_cstates) outp += sprintf(outp, "Pkg%%pc6 "); if (do_snb_cstates) outp += sprintf(outp, "Pkg%%pc7 "); if (do_c8_c9_c10) { outp += sprintf(outp, "Pkg%%pc8 "); outp += sprintf(outp, "Pkg%%pc9 "); outp += sprintf(outp, "Pk%%pc10 "); } if (do_rapl && !rapl_joules) { if (do_rapl & RAPL_PKG) outp += sprintf(outp, "PkgWatt "); if (do_rapl & RAPL_CORES) outp += sprintf(outp, "CorWatt "); if (do_rapl & RAPL_GFX) outp += sprintf(outp, "GFXWatt "); if (do_rapl & RAPL_DRAM) outp += sprintf(outp, "RAMWatt "); if (do_rapl & RAPL_PKG_PERF_STATUS) outp += sprintf(outp, " PKG_%% "); if (do_rapl & RAPL_DRAM_PERF_STATUS) outp += sprintf(outp, " RAM_%% "); } else { if (do_rapl & RAPL_PKG) outp += sprintf(outp, " Pkg_J "); if (do_rapl & RAPL_CORES) outp += sprintf(outp, " Cor_J "); if (do_rapl & RAPL_GFX) outp += sprintf(outp, " GFX_J "); if (do_rapl & RAPL_DRAM) outp += sprintf(outp, " RAM_W "); if (do_rapl & RAPL_PKG_PERF_STATUS) outp += sprintf(outp, " PKG_%% "); if (do_rapl & RAPL_DRAM_PERF_STATUS) outp += sprintf(outp, " RAM_%% "); outp += sprintf(outp, " time "); } outp += sprintf(outp, "\n"); } int dump_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) { outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p); if (t) { outp += sprintf(outp, "CPU: %d flags 0x%x\n", t->cpu_id, t->flags); outp += sprintf(outp, "TSC: %016llX\n", t->tsc); outp += sprintf(outp, "aperf: %016llX\n", t->aperf); outp += sprintf(outp, "mperf: %016llX\n", t->mperf); outp += sprintf(outp, "c1: %016llX\n", t->c1); outp += sprintf(outp, "msr0x%x: %08llX\n", extra_delta_offset32, t->extra_delta32); outp += sprintf(outp, "msr0x%x: %016llX\n", extra_delta_offset64, t->extra_delta64); outp += sprintf(outp, "msr0x%x: %08llX\n", extra_msr_offset32, t->extra_msr32); outp += sprintf(outp, "msr0x%x: %016llX\n", extra_msr_offset64, t->extra_msr64); if (do_smi) outp += sprintf(outp, "SMI: %08X\n", t->smi_count); } if (c) { outp += sprintf(outp, "core: %d\n", c->core_id); outp += sprintf(outp, "c3: %016llX\n", c->c3); outp += sprintf(outp, "c6: %016llX\n", c->c6); outp += sprintf(outp, "c7: %016llX\n", c->c7); outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c); } if (p) { outp += sprintf(outp, "package: %d\n", p->package_id); outp += sprintf(outp, "pc2: %016llX\n", p->pc2); outp += sprintf(outp, "pc3: %016llX\n", p->pc3); outp += sprintf(outp, "pc6: %016llX\n", p->pc6); outp += sprintf(outp, "pc7: %016llX\n", p->pc7); outp += sprintf(outp, "pc8: %016llX\n", p->pc8); outp += sprintf(outp, "pc9: %016llX\n", p->pc9); outp += sprintf(outp, "pc10: %016llX\n", p->pc10); outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg); outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores); outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx); outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram); outp += sprintf(outp, "Throttle PKG: %0X\n", p->rapl_pkg_perf_status); outp += sprintf(outp, "Throttle RAM: %0X\n", p->rapl_dram_perf_status); outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c); } outp += sprintf(outp, "\n"); return 0; } /* * column formatting convention & formats */ int format_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) { double interval_float; char *fmt8; /* if showing only 1st thread in core and this isn't one, bail out */ if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) return 0; /* if showing only 1st thread in pkg and this isn't one, bail out */ if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) return 0; interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0; /* topo columns, print blanks on 1st (average) line */ if (t == &average.threads) { if (show_pkg) outp += sprintf(outp, " -"); if (show_core) outp += sprintf(outp, " -"); if (show_cpu) outp += sprintf(outp, " -"); } else { if (show_pkg) { if (p) outp += sprintf(outp, "%8d", p->package_id); else outp += sprintf(outp, " -"); } if (show_core) { if (c) outp += sprintf(outp, "%8d", c->core_id); else outp += sprintf(outp, " -"); } if (show_cpu) outp += sprintf(outp, "%8d", t->cpu_id); } /* AvgMHz */ if (has_aperf) outp += sprintf(outp, "%8.0f", 1.0 / units * t->aperf / interval_float); /* %c0 */ if (do_nhm_cstates) { if (!skip_c0) outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc); else outp += sprintf(outp, "********"); } /* BzyMHz */ if (has_aperf) outp += sprintf(outp, "%8.0f", 1.0 * t->tsc / units * t->aperf / t->mperf / interval_float); /* TSC */ outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float); /* SMI */ if (do_smi) outp += sprintf(outp, "%8d", t->smi_count); /* delta */ if (extra_delta_offset32) outp += sprintf(outp, " %11llu", t->extra_delta32); /* DELTA */ if (extra_delta_offset64) outp += sprintf(outp, " %11llu", t->extra_delta64); /* msr */ if (extra_msr_offset32) outp += sprintf(outp, " 0x%08llx", t->extra_msr32); /* MSR */ if (extra_msr_offset64) outp += sprintf(outp, " 0x%016llx", t->extra_msr64); if (do_nhm_cstates) { if (!skip_c1) outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc); else outp += sprintf(outp, "********"); } /* print per-core data only for 1st thread in core */ if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) goto done; if (do_nhm_cstates && !do_slm_cstates) outp += sprintf(outp, "%8.2f", 100.0 * c->c3/t->tsc); if (do_nhm_cstates) outp += sprintf(outp, "%8.2f", 100.0 * c->c6/t->tsc); if (do_snb_cstates) outp += sprintf(outp, "%8.2f", 100.0 * c->c7/t->tsc); if (do_dts) outp += sprintf(outp, "%8d", c->core_temp_c); /* print per-package data only for 1st core in package */ if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) goto done; if (do_ptm) outp += sprintf(outp, "%8d", p->pkg_temp_c); if (do_snb_cstates) outp += sprintf(outp, "%8.2f", 100.0 * p->pc2/t->tsc); if (do_nhm_cstates && !do_slm_cstates) outp += sprintf(outp, "%8.2f", 100.0 * p->pc3/t->tsc); if (do_nhm_cstates && !do_slm_cstates) outp += sprintf(outp, "%8.2f", 100.0 * p->pc6/t->tsc); if (do_snb_cstates) outp += sprintf(outp, "%8.2f", 100.0 * p->pc7/t->tsc); if (do_c8_c9_c10) { outp += sprintf(outp, "%8.2f", 100.0 * p->pc8/t->tsc); outp += sprintf(outp, "%8.2f", 100.0 * p->pc9/t->tsc); outp += sprintf(outp, "%8.2f", 100.0 * p->pc10/t->tsc); } /* * If measurement interval exceeds minimum RAPL Joule Counter range, * indicate that results are suspect by printing "**" in fraction place. */ if (interval_float < rapl_joule_counter_range) fmt8 = "%8.2f"; else fmt8 = " %6.0f**"; if (do_rapl && !rapl_joules) { if (do_rapl & RAPL_PKG) outp += sprintf(outp, fmt8, p->energy_pkg * rapl_energy_units / interval_float); if (do_rapl & RAPL_CORES) outp += sprintf(outp, fmt8, p->energy_cores * rapl_energy_units / interval_float); if (do_rapl & RAPL_GFX) outp += sprintf(outp, fmt8, p->energy_gfx * rapl_energy_units / interval_float); if (do_rapl & RAPL_DRAM) outp += sprintf(outp, fmt8, p->energy_dram * rapl_energy_units / interval_float); if (do_rapl & RAPL_PKG_PERF_STATUS) outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float); if (do_rapl & RAPL_DRAM_PERF_STATUS) outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float); } else { if (do_rapl & RAPL_PKG) outp += sprintf(outp, fmt8, p->energy_pkg * rapl_energy_units); if (do_rapl & RAPL_CORES) outp += sprintf(outp, fmt8, p->energy_cores * rapl_energy_units); if (do_rapl & RAPL_GFX) outp += sprintf(outp, fmt8, p->energy_gfx * rapl_energy_units); if (do_rapl & RAPL_DRAM) outp += sprintf(outp, fmt8, p->energy_dram * rapl_energy_units); if (do_rapl & RAPL_PKG_PERF_STATUS) outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float); if (do_rapl & RAPL_DRAM_PERF_STATUS) outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float); outp += sprintf(outp, fmt8, interval_float); } done: outp += sprintf(outp, "\n"); return 0; } void flush_stdout() { fputs(output_buffer, stdout); fflush(stdout); outp = output_buffer; } void flush_stderr() { fputs(output_buffer, stderr); outp = output_buffer; } void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) { static int printed; if (!printed || !summary_only) print_header(); if (topo.num_cpus > 1) format_counters(&average.threads, &average.cores, &average.packages); printed = 1; if (summary_only) return; for_all_cpus(format_counters, t, c, p); } #define DELTA_WRAP32(new, old) \ if (new > old) { \ old = new - old; \ } else { \ old = 0x100000000 + new - old; \ } void delta_package(struct pkg_data *new, struct pkg_data *old) { old->pc2 = new->pc2 - old->pc2; old->pc3 = new->pc3 - old->pc3; old->pc6 = new->pc6 - old->pc6; old->pc7 = new->pc7 - old->pc7; old->pc8 = new->pc8 - old->pc8; old->pc9 = new->pc9 - old->pc9; old->pc10 = new->pc10 - old->pc10; old->pkg_temp_c = new->pkg_temp_c; DELTA_WRAP32(new->energy_pkg, old->energy_pkg); DELTA_WRAP32(new->energy_cores, old->energy_cores); DELTA_WRAP32(new->energy_gfx, old->energy_gfx); DELTA_WRAP32(new->energy_dram, old->energy_dram); DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status); DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status); } void delta_core(struct core_data *new, struct core_data *old) { old->c3 = new->c3 - old->c3; old->c6 = new->c6 - old->c6; old->c7 = new->c7 - old->c7; old->core_temp_c = new->core_temp_c; } /* * old = new - old */ void delta_thread(struct thread_data *new, struct thread_data *old, struct core_data *core_delta) { old->tsc = new->tsc - old->tsc; /* check for TSC < 1 Mcycles over interval */ if (old->tsc < (1000 * 1000)) errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n" "You can disable all c-states by booting with \"idle=poll\"\n" "or just the deep ones with \"processor.max_cstate=1\""); old->c1 = new->c1 - old->c1; if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) { old->aperf = new->aperf - old->aperf; old->mperf = new->mperf - old->mperf; } else { if (!aperf_mperf_unstable) { fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname); fprintf(stderr, "* Frequency results do not cover entire interval *\n"); fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n"); aperf_mperf_unstable = 1; } /* * mperf delta is likely a huge "positive" number * can not use it for calculating c0 time */ skip_c0 = 1; skip_c1 = 1; } if (use_c1_residency_msr) { /* * Some models have a dedicated C1 residency MSR, * which should be more accurate than the derivation below. */ } else { /* * As counter collection is not atomic, * it is possible for mperf's non-halted cycles + idle states * to exceed TSC's all cycles: show c1 = 0% in that case. */ if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc) old->c1 = 0; else { /* normal case, derive c1 */ old->c1 = old->tsc - old->mperf - core_delta->c3 - core_delta->c6 - core_delta->c7; } } if (old->mperf == 0) { if (verbose > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id); old->mperf = 1; /* divide by 0 protection */ } old->extra_delta32 = new->extra_delta32 - old->extra_delta32; old->extra_delta32 &= 0xFFFFFFFF; old->extra_delta64 = new->extra_delta64 - old->extra_delta64; /* * Extra MSR is just a snapshot, simply copy latest w/o subtracting */ old->extra_msr32 = new->extra_msr32; old->extra_msr64 = new->extra_msr64; if (do_smi) old->smi_count = new->smi_count - old->smi_count; } int delta_cpu(struct thread_data *t, struct core_data *c, struct pkg_data *p, struct thread_data *t2, struct core_data *c2, struct pkg_data *p2) { /* calculate core delta only for 1st thread in core */ if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE) delta_core(c, c2); /* always calculate thread delta */ delta_thread(t, t2, c2); /* c2 is core delta */ /* calculate package delta only for 1st core in package */ if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE) delta_package(p, p2); return 0; } void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) { t->tsc = 0; t->aperf = 0; t->mperf = 0; t->c1 = 0; t->smi_count = 0; t->extra_delta32 = 0; t->extra_delta64 = 0; /* tells format_counters to dump all fields from this set */ t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE; c->c3 = 0; c->c6 = 0; c->c7 = 0; c->core_temp_c = 0; p->pc2 = 0; p->pc3 = 0; p->pc6 = 0; p->pc7 = 0; p->pc8 = 0; p->pc9 = 0; p->pc10 = 0; p->energy_pkg = 0; p->energy_dram = 0; p->energy_cores = 0; p->energy_gfx = 0; p->rapl_pkg_perf_status = 0; p->rapl_dram_perf_status = 0; p->pkg_temp_c = 0; } int sum_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) { average.threads.tsc += t->tsc; average.threads.aperf += t->aperf; average.threads.mperf += t->mperf; average.threads.c1 += t->c1; average.threads.extra_delta32 += t->extra_delta32; average.threads.extra_delta64 += t->extra_delta64; /* sum per-core values only for 1st thread in core */ if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) return 0; average.cores.c3 += c->c3; average.cores.c6 += c->c6; average.cores.c7 += c->c7; average.cores.core_temp_c = MAX(average.cores.core_temp_c, c->core_temp_c); /* sum per-pkg values only for 1st core in pkg */ if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) return 0; average.packages.pc2 += p->pc2; average.packages.pc3 += p->pc3; average.packages.pc6 += p->pc6; average.packages.pc7 += p->pc7; average.packages.pc8 += p->pc8; average.packages.pc9 += p->pc9; average.packages.pc10 += p->pc10; average.packages.energy_pkg += p->energy_pkg; average.packages.energy_dram += p->energy_dram; average.packages.energy_cores += p->energy_cores; average.packages.energy_gfx += p->energy_gfx; average.packages.pkg_temp_c = MAX(average.packages.pkg_temp_c, p->pkg_temp_c); average.packages.rapl_pkg_perf_status += p->rapl_pkg_perf_status; average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status; return 0; } /* * sum the counters for all cpus in the system * compute the weighted average */ void compute_average(struct thread_data *t, struct core_data *c, struct pkg_data *p) { clear_counters(&average.threads, &average.cores, &average.packages); for_all_cpus(sum_counters, t, c, p); average.threads.tsc /= topo.num_cpus; average.threads.aperf /= topo.num_cpus; average.threads.mperf /= topo.num_cpus; average.threads.c1 /= topo.num_cpus; average.threads.extra_delta32 /= topo.num_cpus; average.threads.extra_delta32 &= 0xFFFFFFFF; average.threads.extra_delta64 /= topo.num_cpus; average.cores.c3 /= topo.num_cores; average.cores.c6 /= topo.num_cores; average.cores.c7 /= topo.num_cores; average.packages.pc2 /= topo.num_packages; average.packages.pc3 /= topo.num_packages; average.packages.pc6 /= topo.num_packages; average.packages.pc7 /= topo.num_packages; average.packages.pc8 /= topo.num_packages; average.packages.pc9 /= topo.num_packages; average.packages.pc10 /= topo.num_packages; } static unsigned long long rdtsc(void) { unsigned int low, high; asm volatile("rdtsc" : "=a" (low), "=d" (high)); return low | ((unsigned long long)high) << 32; } /* * get_counters(...) * migrate to cpu * acquire and record local counters for that cpu */ int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) { int cpu = t->cpu_id; unsigned long long msr; if (cpu_migrate(cpu)) { fprintf(stderr, "Could not migrate to CPU %d\n", cpu); return -1; } t->tsc = rdtsc(); /* we are running on local CPU of interest */ if (has_aperf) { if (get_msr(cpu, MSR_IA32_APERF, &t->aperf)) return -3; if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf)) return -4; } if (do_smi) { if (get_msr(cpu, MSR_SMI_COUNT, &msr)) return -5; t->smi_count = msr & 0xFFFFFFFF; } if (extra_delta_offset32) { if (get_msr(cpu, extra_delta_offset32, &msr)) return -5; t->extra_delta32 = msr & 0xFFFFFFFF; } if (extra_delta_offset64) if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64)) return -5; if (extra_msr_offset32) { if (get_msr(cpu, extra_msr_offset32, &msr)) return -5; t->extra_msr32 = msr & 0xFFFFFFFF; } if (extra_msr_offset64) if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64)) return -5; if (use_c1_residency_msr) { if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1)) return -6; } /* collect core counters only for 1st thread in core */ if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) return 0; if (do_nhm_cstates && !do_slm_cstates) { if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3)) return -6; } if (do_nhm_cstates) { if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6)) return -7; } if (do_snb_cstates) if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7)) return -8; if (do_dts) { if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr)) return -9; c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F); } /* collect package counters only for 1st core in package */ if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) return 0; if (do_nhm_cstates && !do_slm_cstates) { if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3)) return -9; if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6)) return -10; } if (do_snb_cstates) { if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2)) return -11; if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7)) return -12; } if (do_c8_c9_c10) { if (get_msr(cpu, MSR_PKG_C8_RESIDENCY, &p->pc8)) return -13; if (get_msr(cpu, MSR_PKG_C9_RESIDENCY, &p->pc9)) return -13; if (get_msr(cpu, MSR_PKG_C10_RESIDENCY, &p->pc10)) return -13; } if (do_rapl & RAPL_PKG) { if (get_msr(cpu, MSR_PKG_ENERGY_STATUS, &msr)) return -13; p->energy_pkg = msr & 0xFFFFFFFF; } if (do_rapl & RAPL_CORES) { if (get_msr(cpu, MSR_PP0_ENERGY_STATUS, &msr)) return -14; p->energy_cores = msr & 0xFFFFFFFF; } if (do_rapl & RAPL_DRAM) { if (get_msr(cpu, MSR_DRAM_ENERGY_STATUS, &msr)) return -15; p->energy_dram = msr & 0xFFFFFFFF; } if (do_rapl & RAPL_GFX) { if (get_msr(cpu, MSR_PP1_ENERGY_STATUS, &msr)) return -16; p->energy_gfx = msr & 0xFFFFFFFF; } if (do_rapl & RAPL_PKG_PERF_STATUS) { if (get_msr(cpu, MSR_PKG_PERF_STATUS, &msr)) return -16; p->rapl_pkg_perf_status = msr & 0xFFFFFFFF; } if (do_rapl & RAPL_DRAM_PERF_STATUS) { if (get_msr(cpu, MSR_DRAM_PERF_STATUS, &msr)) return -16; p->rapl_dram_perf_status = msr & 0xFFFFFFFF; } if (do_ptm) { if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr)) return -17; p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F); } return 0; } void print_verbose_header(void) { unsigned long long msr; unsigned int ratio; if (!do_nehalem_platform_info) return; get_msr(0, MSR_NHM_PLATFORM_INFO, &msr); fprintf(stderr, "cpu0: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", msr); ratio = (msr >> 40) & 0xFF; fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency\n", ratio, bclk, ratio * bclk); ratio = (msr >> 8) & 0xFF; fprintf(stderr, "%d * %.0f = %.0f MHz TSC frequency\n", ratio, bclk, ratio * bclk); get_msr(0, MSR_IA32_POWER_CTL, &msr); fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n", msr, msr & 0x2 ? "EN" : "DIS"); if (!do_ivt_turbo_ratio_limit) goto print_nhm_turbo_ratio_limits; get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr); fprintf(stderr, "cpu0: MSR_IVT_TURBO_RATIO_LIMIT: 0x%08llx\n", msr); ratio = (msr >> 56) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 48) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 40) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 32) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 24) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 16) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 8) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 0) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n", ratio, bclk, ratio * bclk); print_nhm_turbo_ratio_limits: get_msr(0, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr); #define SNB_C1_AUTO_UNDEMOTE (1UL << 27) #define SNB_C3_AUTO_UNDEMOTE (1UL << 28) fprintf(stderr, "cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", msr); fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: ", (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "", (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "", (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "", (msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "", (msr & (1 << 15)) ? "" : "UN", (unsigned int)msr & 7); switch(msr & 0x7) { case 0: fprintf(stderr, do_slm_cstates ? "no pkg states" : "pc0"); break; case 1: fprintf(stderr, do_slm_cstates ? "no pkg states" : do_snb_cstates ? "pc2" : "pc0"); break; case 2: fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc6-noret" : "pc3"); break; case 3: fprintf(stderr, do_slm_cstates ? "invalid" : "pc6"); break; case 4: fprintf(stderr, do_slm_cstates ? "pc4" : "pc7"); break; case 5: fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc7s" : "invalid"); break; case 6: fprintf(stderr, do_slm_cstates ? "pc6" : "invalid"); break; case 7: fprintf(stderr, do_slm_cstates ? "pc7" : "unlimited"); break; default: fprintf(stderr, "invalid"); } fprintf(stderr, ")\n"); if (!do_nehalem_turbo_ratio_limit) return; get_msr(0, MSR_NHM_TURBO_RATIO_LIMIT, &msr); fprintf(stderr, "cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n", msr); ratio = (msr >> 56) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 48) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 40) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 32) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 24) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 16) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 8) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n", ratio, bclk, ratio * bclk); ratio = (msr >> 0) & 0xFF; if (ratio) fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n", ratio, bclk, ratio * bclk); } void free_all_buffers(void) { CPU_FREE(cpu_present_set); cpu_present_set = NULL; cpu_present_set = 0; CPU_FREE(cpu_affinity_set); cpu_affinity_set = NULL; cpu_affinity_setsize = 0; free(thread_even); free(core_even); free(package_even); thread_even = NULL; core_even = NULL; package_even = NULL; free(thread_odd); free(core_odd); free(package_odd); thread_odd = NULL; core_odd = NULL; package_odd = NULL; free(output_buffer); output_buffer = NULL; outp = NULL; } /* * Open a file, and exit on failure */ FILE *fopen_or_die(const char *path, const char *mode) { FILE *filep = fopen(path, "r"); if (!filep) err(1, "%s: open failed", path); return filep; } /* * Parse a file containing a single int. */ int parse_int_file(const char *fmt, ...) { va_list args; char path[PATH_MAX]; FILE *filep; int value; va_start(args, fmt); vsnprintf(path, sizeof(path), fmt, args); va_end(args); filep = fopen_or_die(path, "r"); if (fscanf(filep, "%d", &value) != 1) err(1, "%s: failed to parse number from file", path); fclose(filep); return value; } /* * cpu_is_first_sibling_in_core(cpu) * return 1 if given CPU is 1st HT sibling in the core */ int cpu_is_first_sibling_in_core(int cpu) { return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); } /* * cpu_is_first_core_in_package(cpu) * return 1 if given CPU is 1st core in package */ int cpu_is_first_core_in_package(int cpu) { return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu); } int get_physical_package_id(int cpu) { return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu); } int get_core_id(int cpu) { return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu); } int get_num_ht_siblings(int cpu) { char path[80]; FILE *filep; int sib1, sib2; int matches; char character; sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); filep = fopen_or_die(path, "r"); /* * file format: * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4) * otherwinse 1 sibling (self). */ matches = fscanf(filep, "%d%c%d\n", &sib1, &character, &sib2); fclose(filep); if (matches == 3) return 2; else return 1; } /* * run func(thread, core, package) in topology order * skip non-present cpus */ int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *, struct pkg_data *, struct thread_data *, struct core_data *, struct pkg_data *), struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base, struct thread_data *thread_base2, struct core_data *core_base2, struct pkg_data *pkg_base2) { int retval, pkg_no, core_no, thread_no; for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { for (thread_no = 0; thread_no < topo.num_threads_per_core; ++thread_no) { struct thread_data *t, *t2; struct core_data *c, *c2; struct pkg_data *p, *p2; t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); if (cpu_is_not_present(t->cpu_id)) continue; t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no); c = GET_CORE(core_base, core_no, pkg_no); c2 = GET_CORE(core_base2, core_no, pkg_no); p = GET_PKG(pkg_base, pkg_no); p2 = GET_PKG(pkg_base2, pkg_no); retval = func(t, c, p, t2, c2, p2); if (retval) return retval; } } } return 0; } /* * run func(cpu) on every cpu in /proc/stat * return max_cpu number */ int for_all_proc_cpus(int (func)(int)) { FILE *fp; int cpu_num; int retval; fp = fopen_or_die(proc_stat, "r"); retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n"); if (retval != 0) err(1, "%s: failed to parse format", proc_stat); while (1) { retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num); if (retval != 1) break; retval = func(cpu_num); if (retval) { fclose(fp); return(retval); } } fclose(fp); return 0; } void re_initialize(void) { free_all_buffers(); setup_all_buffers(); printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus); } /* * count_cpus() * remember the last one seen, it will be the max */ int count_cpus(int cpu) { if (topo.max_cpu_num < cpu) topo.max_cpu_num = cpu; topo.num_cpus += 1; return 0; } int mark_cpu_present(int cpu) { CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set); return 0; } void turbostat_loop() { int retval; int restarted = 0; restart: restarted++; retval = for_all_cpus(get_counters, EVEN_COUNTERS); if (retval < -1) { exit(retval); } else if (retval == -1) { if (restarted > 1) { exit(retval); } re_initialize(); goto restart; } restarted = 0; gettimeofday(&tv_even, (struct timezone *)NULL); while (1) { if (for_all_proc_cpus(cpu_is_not_present)) { re_initialize(); goto restart; } sleep(interval_sec); retval = for_all_cpus(get_counters, ODD_COUNTERS); if (retval < -1) { exit(retval); } else if (retval == -1) { re_initialize(); goto restart; } gettimeofday(&tv_odd, (struct timezone *)NULL); timersub(&tv_odd, &tv_even, &tv_delta); for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); compute_average(EVEN_COUNTERS); format_all_counters(EVEN_COUNTERS); flush_stdout(); sleep(interval_sec); retval = for_all_cpus(get_counters, EVEN_COUNTERS); if (retval < -1) { exit(retval); } else if (retval == -1) { re_initialize(); goto restart; } gettimeofday(&tv_even, (struct timezone *)NULL); timersub(&tv_even, &tv_odd, &tv_delta); for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS); compute_average(ODD_COUNTERS); format_all_counters(ODD_COUNTERS); flush_stdout(); } } void check_dev_msr() { struct stat sb; if (stat("/dev/cpu/0/msr", &sb)) err(-5, "no /dev/cpu/0/msr\n" "Try \"# modprobe msr\""); } void check_super_user() { if (getuid() != 0) errx(-6, "must be root"); } int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model) { if (!genuine_intel) return 0; if (family != 6) return 0; switch (model) { case 0x1A: /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */ case 0x1E: /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */ case 0x1F: /* Core i7 and i5 Processor - Nehalem */ case 0x25: /* Westmere Client - Clarkdale, Arrandale */ case 0x2C: /* Westmere EP - Gulftown */ case 0x2A: /* SNB */ case 0x2D: /* SNB Xeon */ case 0x3A: /* IVB */ case 0x3E: /* IVB Xeon */ case 0x3C: /* HSW */ case 0x3F: /* HSX */ case 0x45: /* HSW */ case 0x46: /* HSW */ case 0x37: /* BYT */ case 0x4D: /* AVN */ case 0x3D: /* BDW */ case 0x4F: /* BDX */ case 0x56: /* BDX-DE */ return 1; case 0x2E: /* Nehalem-EX Xeon - Beckton */ case 0x2F: /* Westmere-EX Xeon - Eagleton */ default: return 0; } } int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model) { if (!genuine_intel) return 0; if (family != 6) return 0; switch (model) { case 0x3E: /* IVB Xeon */ return 1; default: return 0; } } /* * print_epb() * Decode the ENERGY_PERF_BIAS MSR */ int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p) { unsigned long long msr; char *epb_string; int cpu; if (!has_epb) return 0; cpu = t->cpu_id; /* EPB is per-package */ if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) return 0; if (cpu_migrate(cpu)) { fprintf(stderr, "Could not migrate to CPU %d\n", cpu); return -1; } if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr)) return 0; switch (msr & 0x7) { case ENERGY_PERF_BIAS_PERFORMANCE: epb_string = "performance"; break; case ENERGY_PERF_BIAS_NORMAL: epb_string = "balanced"; break; case ENERGY_PERF_BIAS_POWERSAVE: epb_string = "powersave"; break; default: epb_string = "custom"; break; } fprintf(stderr, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string); return 0; } #define RAPL_POWER_GRANULARITY 0x7FFF /* 15 bit power granularity */ #define RAPL_TIME_GRANULARITY 0x3F /* 6 bit time granularity */ double get_tdp(model) { unsigned long long msr; if (do_rapl & RAPL_PKG_POWER_INFO) if (!get_msr(0, MSR_PKG_POWER_INFO, &msr)) return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units; switch (model) { case 0x37: case 0x4D: return 30.0; default: return 135.0; } } /* * rapl_probe() * * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units */ void rapl_probe(unsigned int family, unsigned int model) { unsigned long long msr; unsigned int time_unit; double tdp; if (!genuine_intel) return; if (family != 6) return; switch (model) { case 0x2A: case 0x3A: case 0x3C: /* HSW */ case 0x45: /* HSW */ case 0x46: /* HSW */ case 0x3D: /* BDW */ do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO; break; case 0x3F: /* HSX */ case 0x4F: /* BDX */ case 0x56: /* BDX-DE */ do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO; break; case 0x2D: case 0x3E: do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS | RAPL_PKG_POWER_INFO; break; case 0x37: /* BYT */ case 0x4D: /* AVN */ do_rapl = RAPL_PKG | RAPL_CORES ; break; default: return; } /* units on package 0, verify later other packages match */ if (get_msr(0, MSR_RAPL_POWER_UNIT, &msr)) return; rapl_power_units = 1.0 / (1 << (msr & 0xF)); if (model == 0x37) rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000; else rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F)); time_unit = msr >> 16 & 0xF; if (time_unit == 0) time_unit = 0xA; rapl_time_units = 1.0 / (1 << (time_unit)); tdp = get_tdp(model); rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp; if (verbose) fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp); return; } int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p) { unsigned long long msr; unsigned int dts; int cpu; if (!(do_dts || do_ptm)) return 0; cpu = t->cpu_id; /* DTS is per-core, no need to print for each thread */ if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) return 0; if (cpu_migrate(cpu)) { fprintf(stderr, "Could not migrate to CPU %d\n", cpu); return -1; } if (do_ptm && (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) { if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr)) return 0; dts = (msr >> 16) & 0x7F; fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n", cpu, msr, tcc_activation_temp - dts); #ifdef THERM_DEBUG if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr)) return 0; dts = (msr >> 16) & 0x7F; dts2 = (msr >> 8) & 0x7F; fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n", cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2); #endif } if (do_dts) { unsigned int resolution; if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr)) return 0; dts = (msr >> 16) & 0x7F; resolution = (msr >> 27) & 0xF; fprintf(stderr, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n", cpu, msr, tcc_activation_temp - dts, resolution); #ifdef THERM_DEBUG if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr)) return 0; dts = (msr >> 16) & 0x7F; dts2 = (msr >> 8) & 0x7F; fprintf(stderr, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n", cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2); #endif } return 0; } void print_power_limit_msr(int cpu, unsigned long long msr, char *label) { fprintf(stderr, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n", cpu, label, ((msr >> 15) & 1) ? "EN" : "DIS", ((msr >> 0) & 0x7FFF) * rapl_power_units, (1.0 + (((msr >> 22) & 0x3)/4.0)) * (1 << ((msr >> 17) & 0x1F)) * rapl_time_units, (((msr >> 16) & 1) ? "EN" : "DIS")); return; } int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) { unsigned long long msr; int cpu; if (!do_rapl) return 0; /* RAPL counters are per package, so print only for 1st thread/package */ if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) return 0; cpu = t->cpu_id; if (cpu_migrate(cpu)) { fprintf(stderr, "Could not migrate to CPU %d\n", cpu); return -1; } if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr)) return -1; if (verbose) { fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx " "(%f Watts, %f Joules, %f sec.)\n", cpu, msr, rapl_power_units, rapl_energy_units, rapl_time_units); } if (do_rapl & RAPL_PKG_POWER_INFO) { if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr)) return -5; fprintf(stderr, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n", cpu, msr, ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units, ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units, ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units, ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units); } if (do_rapl & RAPL_PKG) { if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr)) return -9; fprintf(stderr, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n", cpu, msr, (msr >> 63) & 1 ? "": "UN"); print_power_limit_msr(cpu, msr, "PKG Limit #1"); fprintf(stderr, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n", cpu, ((msr >> 47) & 1) ? "EN" : "DIS", ((msr >> 32) & 0x7FFF) * rapl_power_units, (1.0 + (((msr >> 54) & 0x3)/4.0)) * (1 << ((msr >> 49) & 0x1F)) * rapl_time_units, ((msr >> 48) & 1) ? "EN" : "DIS"); } if (do_rapl & RAPL_DRAM) { if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr)) return -6; fprintf(stderr, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n", cpu, msr, ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units, ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units, ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units, ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units); if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr)) return -9; fprintf(stderr, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n", cpu, msr, (msr >> 31) & 1 ? "": "UN"); print_power_limit_msr(cpu, msr, "DRAM Limit"); } if (do_rapl & RAPL_CORE_POLICY) { if (verbose) { if (get_msr(cpu, MSR_PP0_POLICY, &msr)) return -7; fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF); } } if (do_rapl & RAPL_CORES) { if (verbose) { if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr)) return -9; fprintf(stderr, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n", cpu, msr, (msr >> 31) & 1 ? "": "UN"); print_power_limit_msr(cpu, msr, "Cores Limit"); } } if (do_rapl & RAPL_GFX) { if (verbose) { if (get_msr(cpu, MSR_PP1_POLICY, &msr)) return -8; fprintf(stderr, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF); if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr)) return -9; fprintf(stderr, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n", cpu, msr, (msr >> 31) & 1 ? "": "UN"); print_power_limit_msr(cpu, msr, "GFX Limit"); } } return 0; } int is_snb(unsigned int family, unsigned int model) { if (!genuine_intel) return 0; switch (model) { case 0x2A: case 0x2D: case 0x3A: /* IVB */ case 0x3E: /* IVB Xeon */ case 0x3C: /* HSW */ case 0x3F: /* HSW */ case 0x45: /* HSW */ case 0x46: /* HSW */ case 0x3D: /* BDW */ case 0x4F: /* BDX */ case 0x56: /* BDX-DE */ return 1; } return 0; } int has_c8_c9_c10(unsigned int family, unsigned int model) { if (!genuine_intel) return 0; switch (model) { case 0x45: /* HSW */ case 0x3D: /* BDW */ return 1; } return 0; } int is_slm(unsigned int family, unsigned int model) { if (!genuine_intel) return 0; switch (model) { case 0x37: /* BYT */ case 0x4D: /* AVN */ return 1; } return 0; } #define SLM_BCLK_FREQS 5 double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0}; double slm_bclk(void) { unsigned long long msr = 3; unsigned int i; double freq; if (get_msr(0, MSR_FSB_FREQ, &msr)) fprintf(stderr, "SLM BCLK: unknown\n"); i = msr & 0xf; if (i >= SLM_BCLK_FREQS) { fprintf(stderr, "SLM BCLK[%d] invalid\n", i); msr = 3; } freq = slm_freq_table[i]; fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq); return freq; } double discover_bclk(unsigned int family, unsigned int model) { if (is_snb(family, model)) return 100.00; else if (is_slm(family, model)) return slm_bclk(); else return 133.33; } /* * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where * the Thermal Control Circuit (TCC) activates. * This is usually equal to tjMax. * * Older processors do not have this MSR, so there we guess, * but also allow cmdline over-ride with -T. * * Several MSR temperature values are in units of degrees-C * below this value, including the Digital Thermal Sensor (DTS), * Package Thermal Management Sensor (PTM), and thermal event thresholds. */ int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p) { unsigned long long msr; unsigned int target_c_local; int cpu; /* tcc_activation_temp is used only for dts or ptm */ if (!(do_dts || do_ptm)) return 0; /* this is a per-package concept */ if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) return 0; cpu = t->cpu_id; if (cpu_migrate(cpu)) { fprintf(stderr, "Could not migrate to CPU %d\n", cpu); return -1; } if (tcc_activation_temp_override != 0) { tcc_activation_temp = tcc_activation_temp_override; fprintf(stderr, "cpu%d: Using cmdline TCC Target (%d C)\n", cpu, tcc_activation_temp); return 0; } /* Temperature Target MSR is Nehalem and newer only */ if (!do_nehalem_platform_info) goto guess; if (get_msr(0, MSR_IA32_TEMPERATURE_TARGET, &msr)) goto guess; target_c_local = (msr >> 16) & 0x7F; if (verbose) fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n", cpu, msr, target_c_local); if (target_c_local < 85 || target_c_local > 127) goto guess; tcc_activation_temp = target_c_local; return 0; guess: tcc_activation_temp = TJMAX_DEFAULT; fprintf(stderr, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n", cpu, tcc_activation_temp); return 0; } void check_cpuid() { unsigned int eax, ebx, ecx, edx, max_level; unsigned int fms, family, model, stepping; eax = ebx = ecx = edx = 0; __get_cpuid(0, &max_level, &ebx, &ecx, &edx); if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e) genuine_intel = 1; if (verbose) fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ", (char *)&ebx, (char *)&edx, (char *)&ecx); __get_cpuid(1, &fms, &ebx, &ecx, &edx); family = (fms >> 8) & 0xf; model = (fms >> 4) & 0xf; stepping = fms & 0xf; if (family == 6 || family == 0xf) model += ((fms >> 16) & 0xf) << 4; if (verbose) fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n", max_level, family, model, stepping, family, model, stepping); if (!(edx & (1 << 5))) errx(1, "CPUID: no MSR"); /* * check max extended function levels of CPUID. * This is needed to check for invariant TSC. * This check is valid for both Intel and AMD. */ ebx = ecx = edx = 0; __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx); if (max_level < 0x80000007) errx(1, "CPUID: no invariant TSC (max_level 0x%x)", max_level); /* * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8 * this check is valid for both Intel and AMD */ __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx); has_invariant_tsc = edx & (1 << 8); if (!has_invariant_tsc) errx(1, "No invariant TSC"); /* * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0 * this check is valid for both Intel and AMD */ __get_cpuid(0x6, &eax, &ebx, &ecx, &edx); has_aperf = ecx & (1 << 0); do_dts = eax & (1 << 0); do_ptm = eax & (1 << 6); has_epb = ecx & (1 << 3); if (verbose) fprintf(stderr, "CPUID(6): %s%s%s%s\n", has_aperf ? "APERF" : "No APERF!", do_dts ? ", DTS" : "", do_ptm ? ", PTM": "", has_epb ? ", EPB": ""); if (!has_aperf) errx(-1, "No APERF"); do_nehalem_platform_info = genuine_intel && has_invariant_tsc; do_nhm_cstates = genuine_intel; /* all Intel w/ non-stop TSC have NHM counters */ do_smi = do_nhm_cstates; do_snb_cstates = is_snb(family, model); do_c8_c9_c10 = has_c8_c9_c10(family, model); do_slm_cstates = is_slm(family, model); bclk = discover_bclk(family, model); do_nehalem_turbo_ratio_limit = has_nehalem_turbo_ratio_limit(family, model); do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model); rapl_probe(family, model); return; } void usage() { errx(1, "%s: [-v][-R][-T][-p|-P|-S][-c MSR#][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n", progname); } /* * in /dev/cpu/ return success for names that are numbers * ie. filter out ".", "..", "microcode". */ int dir_filter(const struct dirent *dirp) { if (isdigit(dirp->d_name[0])) return 1; else return 0; } int open_dev_cpu_msr(int dummy1) { return 0; } void topology_probe() { int i; int max_core_id = 0; int max_package_id = 0; int max_siblings = 0; struct cpu_topology { int core_id; int physical_package_id; } *cpus; /* Initialize num_cpus, max_cpu_num */ topo.num_cpus = 0; topo.max_cpu_num = 0; for_all_proc_cpus(count_cpus); if (!summary_only && topo.num_cpus > 1) show_cpu = 1; if (verbose > 1) fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num); cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology)); if (cpus == NULL) err(1, "calloc cpus"); /* * Allocate and initialize cpu_present_set */ cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1)); if (cpu_present_set == NULL) err(3, "CPU_ALLOC"); cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); CPU_ZERO_S(cpu_present_setsize, cpu_present_set); for_all_proc_cpus(mark_cpu_present); /* * Allocate and initialize cpu_affinity_set */ cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1)); if (cpu_affinity_set == NULL) err(3, "CPU_ALLOC"); cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); /* * For online cpus * find max_core_id, max_package_id */ for (i = 0; i <= topo.max_cpu_num; ++i) { int siblings; if (cpu_is_not_present(i)) { if (verbose > 1) fprintf(stderr, "cpu%d NOT PRESENT\n", i); continue; } cpus[i].core_id = get_core_id(i); if (cpus[i].core_id > max_core_id) max_core_id = cpus[i].core_id; cpus[i].physical_package_id = get_physical_package_id(i); if (cpus[i].physical_package_id > max_package_id) max_package_id = cpus[i].physical_package_id; siblings = get_num_ht_siblings(i); if (siblings > max_siblings) max_siblings = siblings; if (verbose > 1) fprintf(stderr, "cpu %d pkg %d core %d\n", i, cpus[i].physical_package_id, cpus[i].core_id); } topo.num_cores_per_pkg = max_core_id + 1; if (verbose > 1) fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n", max_core_id, topo.num_cores_per_pkg); if (!summary_only && topo.num_cores_per_pkg > 1) show_core = 1; topo.num_packages = max_package_id + 1; if (verbose > 1) fprintf(stderr, "max_package_id %d, sizing for %d packages\n", max_package_id, topo.num_packages); if (!summary_only && topo.num_packages > 1) show_pkg = 1; topo.num_threads_per_core = max_siblings; if (verbose > 1) fprintf(stderr, "max_siblings %d\n", max_siblings); free(cpus); } void allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p) { int i; *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg * topo.num_packages, sizeof(struct thread_data)); if (*t == NULL) goto error; for (i = 0; i < topo.num_threads_per_core * topo.num_cores_per_pkg * topo.num_packages; i++) (*t)[i].cpu_id = -1; *c = calloc(topo.num_cores_per_pkg * topo.num_packages, sizeof(struct core_data)); if (*c == NULL) goto error; for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++) (*c)[i].core_id = -1; *p = calloc(topo.num_packages, sizeof(struct pkg_data)); if (*p == NULL) goto error; for (i = 0; i < topo.num_packages; i++) (*p)[i].package_id = i; return; error: err(1, "calloc counters"); } /* * init_counter() * * set cpu_id, core_num, pkg_num * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE * * increment topo.num_cores when 1st core in pkg seen */ void init_counter(struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base, int thread_num, int core_num, int pkg_num, int cpu_id) { struct thread_data *t; struct core_data *c; struct pkg_data *p; t = GET_THREAD(thread_base, thread_num, core_num, pkg_num); c = GET_CORE(core_base, core_num, pkg_num); p = GET_PKG(pkg_base, pkg_num); t->cpu_id = cpu_id; if (thread_num == 0) { t->flags |= CPU_IS_FIRST_THREAD_IN_CORE; if (cpu_is_first_core_in_package(cpu_id)) t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE; } c->core_id = core_num; p->package_id = pkg_num; } int initialize_counters(int cpu_id) { int my_thread_id, my_core_id, my_package_id; my_package_id = get_physical_package_id(cpu_id); my_core_id = get_core_id(cpu_id); if (cpu_is_first_sibling_in_core(cpu_id)) { my_thread_id = 0; topo.num_cores++; } else { my_thread_id = 1; } init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); return 0; } void allocate_output_buffer() { output_buffer = calloc(1, (1 + topo.num_cpus) * 1024); outp = output_buffer; if (outp == NULL) err(-1, "calloc output buffer"); } void setup_all_buffers(void) { topology_probe(); allocate_counters(&thread_even, &core_even, &package_even); allocate_counters(&thread_odd, &core_odd, &package_odd); allocate_output_buffer(); for_all_proc_cpus(initialize_counters); } void turbostat_init() { check_cpuid(); check_dev_msr(); check_super_user(); setup_all_buffers(); if (verbose) print_verbose_header(); if (verbose) for_all_cpus(print_epb, ODD_COUNTERS); if (verbose) for_all_cpus(print_rapl, ODD_COUNTERS); for_all_cpus(set_temperature_target, ODD_COUNTERS); if (verbose) for_all_cpus(print_thermal, ODD_COUNTERS); } int fork_it(char **argv) { pid_t child_pid; int status; status = for_all_cpus(get_counters, EVEN_COUNTERS); if (status) exit(status); /* clear affinity side-effect of get_counters() */ sched_setaffinity(0, cpu_present_setsize, cpu_present_set); gettimeofday(&tv_even, (struct timezone *)NULL); child_pid = fork(); if (!child_pid) { /* child */ execvp(argv[0], argv); } else { /* parent */ if (child_pid == -1) err(1, "fork"); signal(SIGINT, SIG_IGN); signal(SIGQUIT, SIG_IGN); if (waitpid(child_pid, &status, 0) == -1) err(status, "waitpid"); } /* * n.b. fork_it() does not check for errors from for_all_cpus() * because re-starting is problematic when forking */ for_all_cpus(get_counters, ODD_COUNTERS); gettimeofday(&tv_odd, (struct timezone *)NULL); timersub(&tv_odd, &tv_even, &tv_delta); for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); compute_average(EVEN_COUNTERS); format_all_counters(EVEN_COUNTERS); flush_stderr(); fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0); return status; } int get_and_dump_counters(void) { int status; status = for_all_cpus(get_counters, ODD_COUNTERS); if (status) return status; status = for_all_cpus(dump_counters, ODD_COUNTERS); if (status) return status; flush_stdout(); return status; } void cmdline(int argc, char **argv) { int opt; progname = argv[0]; while ((opt = getopt(argc, argv, "+pPsSvi:c:C:m:M:RJT:")) != -1) { switch (opt) { case 'p': show_core_only++; break; case 'P': show_pkg_only++; break; case 's': dump_only++; break; case 'S': summary_only++; break; case 'v': verbose++; break; case 'i': interval_sec = atoi(optarg); break; case 'c': sscanf(optarg, "%x", &extra_delta_offset32); break; case 'C': sscanf(optarg, "%x", &extra_delta_offset64); break; case 'm': sscanf(optarg, "%x", &extra_msr_offset32); break; case 'M': sscanf(optarg, "%x", &extra_msr_offset64); break; case 'R': rapl_verbose++; break; case 'T': tcc_activation_temp_override = atoi(optarg); break; case 'J': rapl_joules++; break; default: usage(); } } } int main(int argc, char **argv) { cmdline(argc, argv); if (verbose) fprintf(stderr, "turbostat v3.7 Feb 6, 2014" " - Len Brown \n"); turbostat_init(); /* dump counters and exit */ if (dump_only) return get_and_dump_counters(); /* * if any params left, it must be a command to fork */ if (argc - optind) return fork_it(argv + optind); else turbostat_loop(); return 0; }