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author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-31 00:12:15 +0100 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-31 00:12:15 +0100 |
commit | 63ce50fff9240d66cf3b59663f458f55ba6dcfcc (patch) | |
tree | c2613289116d6f80a50f534e9c5e4afc26064574 /include/trace/events | |
parent | Merge tag 'locking-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/ker... (diff) | |
parent | sched/fair: Remove SIS_PROP (diff) | |
download | linux-63ce50fff9240d66cf3b59663f458f55ba6dcfcc.tar.xz linux-63ce50fff9240d66cf3b59663f458f55ba6dcfcc.zip |
Merge tag 'sched-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Fair scheduler (SCHED_OTHER) improvements:
- Remove the old and now unused SIS_PROP code & option
- Scan cluster before LLC in the wake-up path
- Use candidate prev/recent_used CPU if scanning failed for cluster
wakeup
NUMA scheduling improvements:
- Improve the VMA access-PID code to better skip/scan VMAs
- Extend tracing to cover VMA-skipping decisions
- Improve/fix the recently introduced sched_numa_find_nth_cpu() code
- Generalize numa_map_to_online_node()
Energy scheduling improvements:
- Remove the EM_MAX_COMPLEXITY limit
- Add tracepoints to track energy computation
- Make the behavior of the 'sched_energy_aware' sysctl more
consistent
- Consolidate and clean up access to a CPU's max compute capacity
- Fix uclamp code corner cases
RT scheduling improvements:
- Drive dl_rq->overloaded with dl_rq->pushable_dl_tasks updates
- Drive the ->rto_mask with rt_rq->pushable_tasks updates
Scheduler scalability improvements:
- Rate-limit updates to tg->load_avg
- On x86 disable IBRS when CPU is offline to improve single-threaded
performance
- Micro-optimize in_task() and in_interrupt()
- Micro-optimize the PSI code
- Avoid updating PSI triggers and ->rtpoll_total when there are no
state changes
Core scheduler infrastructure improvements:
- Use saved_state to reduce some spurious freezer wakeups
- Bring in a handful of fast-headers improvements to scheduler
headers
- Make the scheduler UAPI headers more widely usable by user-space
- Simplify the control flow of scheduler syscalls by using lock
guards
- Fix sched_setaffinity() vs. CPU hotplug race
Scheduler debuggability improvements:
- Disallow writing invalid values to sched_rt_period_us
- Fix a race in the rq-clock debugging code triggering warnings
- Fix a warning in the bandwidth distribution code
- Micro-optimize in_atomic_preempt_off() checks
- Enforce that the tasklist_lock is held in for_each_thread()
- Print the TGID in sched_show_task()
- Remove the /proc/sys/kernel/sched_child_runs_first sysctl
... and misc cleanups & fixes"
* tag 'sched-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (82 commits)
sched/fair: Remove SIS_PROP
sched/fair: Use candidate prev/recent_used CPU if scanning failed for cluster wakeup
sched/fair: Scan cluster before scanning LLC in wake-up path
sched: Add cpus_share_resources API
sched/core: Fix RQCF_ACT_SKIP leak
sched/fair: Remove unused 'curr' argument from pick_next_entity()
sched/nohz: Update comments about NEWILB_KICK
sched/fair: Remove duplicate #include
sched/psi: Update poll => rtpoll in relevant comments
sched: Make PELT acronym definition searchable
sched: Fix stop_one_cpu_nowait() vs hotplug
sched/psi: Bail out early from irq time accounting
sched/topology: Rename 'DIE' domain to 'PKG'
sched/psi: Delete the 'update_total' function parameter from update_triggers()
sched/psi: Avoid updating PSI triggers and ->rtpoll_total when there are no state changes
sched/headers: Remove comment referring to rq::cpu_load, since this has been removed
sched/numa: Complete scanning of inactive VMAs when there is no alternative
sched/numa: Complete scanning of partial VMAs regardless of PID activity
sched/numa: Move up the access pid reset logic
sched/numa: Trace decisions related to skipping VMAs
...
Diffstat (limited to 'include/trace/events')
-rw-r--r-- | include/trace/events/sched.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index fbb99a61f714..6188ad0d9e0d 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -664,6 +664,58 @@ DEFINE_EVENT(sched_numa_pair_template, sched_swap_numa, TP_ARGS(src_tsk, src_cpu, dst_tsk, dst_cpu) ); +#ifdef CONFIG_NUMA_BALANCING +#define NUMAB_SKIP_REASON \ + EM( NUMAB_SKIP_UNSUITABLE, "unsuitable" ) \ + EM( NUMAB_SKIP_SHARED_RO, "shared_ro" ) \ + EM( NUMAB_SKIP_INACCESSIBLE, "inaccessible" ) \ + EM( NUMAB_SKIP_SCAN_DELAY, "scan_delay" ) \ + EM( NUMAB_SKIP_PID_INACTIVE, "pid_inactive" ) \ + EM( NUMAB_SKIP_IGNORE_PID, "ignore_pid_inactive" ) \ + EMe(NUMAB_SKIP_SEQ_COMPLETED, "seq_completed" ) + +/* Redefine for export. */ +#undef EM +#undef EMe +#define EM(a, b) TRACE_DEFINE_ENUM(a); +#define EMe(a, b) TRACE_DEFINE_ENUM(a); + +NUMAB_SKIP_REASON + +/* Redefine for symbolic printing. */ +#undef EM +#undef EMe +#define EM(a, b) { a, b }, +#define EMe(a, b) { a, b } + +TRACE_EVENT(sched_skip_vma_numa, + + TP_PROTO(struct mm_struct *mm, struct vm_area_struct *vma, + enum numa_vmaskip_reason reason), + + TP_ARGS(mm, vma, reason), + + TP_STRUCT__entry( + __field(unsigned long, numa_scan_offset) + __field(unsigned long, vm_start) + __field(unsigned long, vm_end) + __field(enum numa_vmaskip_reason, reason) + ), + + TP_fast_assign( + __entry->numa_scan_offset = mm->numa_scan_offset; + __entry->vm_start = vma->vm_start; + __entry->vm_end = vma->vm_end; + __entry->reason = reason; + ), + + TP_printk("numa_scan_offset=%lX vm_start=%lX vm_end=%lX reason=%s", + __entry->numa_scan_offset, + __entry->vm_start, + __entry->vm_end, + __print_symbolic(__entry->reason, NUMAB_SKIP_REASON)) +); +#endif /* CONFIG_NUMA_BALANCING */ /* * Tracepoint for waking a polling cpu without an IPI. @@ -735,6 +787,11 @@ DECLARE_TRACE(sched_update_nr_running_tp, TP_PROTO(struct rq *rq, int change), TP_ARGS(rq, change)); +DECLARE_TRACE(sched_compute_energy_tp, + TP_PROTO(struct task_struct *p, int dst_cpu, unsigned long energy, + unsigned long max_util, unsigned long busy_time), + TP_ARGS(p, dst_cpu, energy, max_util, busy_time)); + #endif /* _TRACE_SCHED_H */ /* This part must be outside protection */ |