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-rw-r--r--tools/power/x86/turbostat/turbostat.c77
1 files changed, 35 insertions, 42 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index a302a333c084..c0dade0c1921 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -51,8 +51,6 @@ unsigned int debug;
unsigned int rapl_joules;
unsigned int summary_only;
unsigned int dump_only;
-unsigned int skip_c0;
-unsigned int skip_c1;
unsigned int do_nhm_cstates;
unsigned int do_snb_cstates;
unsigned int do_knl_cstates;
@@ -145,7 +143,6 @@ unsigned int has_hwp_pkg; /* IA32_HWP_REQUEST_PKG */
#define MAX(a, b) ((a) > (b) ? (a) : (b))
-int aperf_mperf_unstable;
int backwards_count;
char *progname;
@@ -546,12 +543,8 @@ int format_counters(struct thread_data *t, struct core_data *c,
1.0 / units * t->aperf / interval_float);
/* Busy% */
- if (has_aperf) {
- if (!skip_c0)
- outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc/tsc_tweak);
- else
- outp += sprintf(outp, "********");
- }
+ if (has_aperf)
+ outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc/tsc_tweak);
/* Bzy_MHz */
if (has_aperf) {
@@ -591,12 +584,8 @@ int format_counters(struct thread_data *t, struct core_data *c,
if (do_smi)
outp += sprintf(outp, "%8d", t->smi_count);
- if (do_nhm_cstates) {
- if (!skip_c1)
- outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc);
- else
- outp += sprintf(outp, "********");
- }
+ if (do_nhm_cstates)
+ outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc);
/* print per-core data only for 1st thread in core */
if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
@@ -622,8 +611,8 @@ int format_counters(struct thread_data *t, struct core_data *c,
/* GFXrc6 */
if (do_gfx_rc6_ms) {
- if (p->gfx_rc6_ms == -1) { /* detect counter reset */
- outp += sprintf(outp, " ***.**");
+ if (p->gfx_rc6_ms == -1) { /* detect GFX counter reset */
+ outp += sprintf(outp, " **.**");
} else {
outp += sprintf(outp, "%8.2f",
p->gfx_rc6_ms / 10.0 / interval_float);
@@ -748,7 +737,7 @@ void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_
old = 0x100000000 + new - old; \
}
-void
+int
delta_package(struct pkg_data *new, struct pkg_data *old)
{
@@ -784,6 +773,8 @@ delta_package(struct pkg_data *new, struct pkg_data *old)
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);
+
+ return 0;
}
void
@@ -798,7 +789,7 @@ delta_core(struct core_data *new, struct core_data *old)
/*
* old = new - old
*/
-void
+int
delta_thread(struct thread_data *new, struct thread_data *old,
struct core_data *core_delta)
{
@@ -817,20 +808,7 @@ delta_thread(struct thread_data *new, struct thread_data *old,
old->aperf = new->aperf - old->aperf;
old->mperf = new->mperf - old->mperf;
} else {
-
- if (!aperf_mperf_unstable) {
- fprintf(outf, "%s: APERF or MPERF went backwards *\n", progname);
- fprintf(outf, "* Frequency results do not cover entire interval *\n");
- fprintf(outf, "* 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;
+ return -1;
}
}
@@ -877,24 +855,30 @@ delta_thread(struct thread_data *new, struct thread_data *old,
if (do_smi)
old->smi_count = new->smi_count - old->smi_count;
+
+ return 0;
}
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)
{
+ int retval = 0;
+
/* 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 */
+ retval = delta_thread(t, t2, c2); /* c2 is core delta */
+ if (retval)
+ return retval;
/* calculate package delta only for 1st core in package */
if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)
- delta_package(p, p2);
+ retval = delta_package(p, p2);
- return 0;
+ return retval;
}
void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
@@ -2067,7 +2051,10 @@ restart:
}
gettimeofday(&tv_odd, (struct timezone *)NULL);
timersub(&tv_odd, &tv_even, &tv_delta);
- for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
+ if (for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS)) {
+ re_initialize();
+ goto restart;
+ }
compute_average(EVEN_COUNTERS);
format_all_counters(EVEN_COUNTERS);
flush_output_stdout();
@@ -2083,7 +2070,10 @@ restart:
}
gettimeofday(&tv_even, (struct timezone *)NULL);
timersub(&tv_even, &tv_odd, &tv_delta);
- for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS);
+ if (for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS)) {
+ re_initialize();
+ goto restart;
+ }
compute_average(ODD_COUNTERS);
format_all_counters(ODD_COUNTERS);
flush_output_stdout();
@@ -3693,9 +3683,12 @@ int fork_it(char **argv)
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);
+ if (for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS))
+ fprintf(outf, "%s: Counter reset detected\n", progname);
+ else {
+ compute_average(EVEN_COUNTERS);
+ format_all_counters(EVEN_COUNTERS);
+ }
fprintf(outf, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);
@@ -3722,7 +3715,7 @@ int get_and_dump_counters(void)
}
void print_version() {
- fprintf(outf, "turbostat version 4.12 5 Apr 2016"
+ fprintf(outf, "turbostat version 4.13 22 Apr 2016"
" - Len Brown <lenb@kernel.org>\n");
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 10:37:51 +0100