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| author | Vincent Guittot <vincent.guittot@linaro.org> | 2024-03-26 12:16:15 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-04-24 13:08:01 +0300 |
| commit | d4dbc991714eefcbd8d54a3204bd77a0a52bd32d (patch) | |
| tree | 4d03ab2482c2c088f200f05b2cd872aa62d9eab3 /kernel/sched/core.c | |
| parent | c281afe24fc51691e65f59ea66eefa14cbdfa0e7 (diff) | |
| download | linux-d4dbc991714eefcbd8d54a3204bd77a0a52bd32d.tar.xz | |
sched/cpufreq: Rename arch_update_thermal_pressure() => arch_update_hw_pressure()
Now that cpufreq provides a pressure value to the scheduler, rename
arch_update_thermal_pressure into HW pressure to reflect that it returns
a pressure applied by HW (i.e. with a high frequency change) and not
always related to thermal mitigation but also generated by max current
limitation as an example. Such high frequency signal needs filtering to be
smoothed and provide an value that reflects the average available capacity
into the scheduler time scale.
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Qais Yousef <qyousef@layalina.io>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://lore.kernel.org/r/20240326091616.3696851-5-vincent.guittot@linaro.org
Diffstat (limited to 'kernel/sched/core.c')
| -rw-r--r-- | kernel/sched/core.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 0621e4ee31de..67a8302c3131 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -108,7 +108,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_rt_tp); EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_dl_tp); EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_irq_tp); EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_se_tp); -EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_thermal_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_hw_tp); EXPORT_TRACEPOINT_SYMBOL_GPL(sched_cpu_capacity_tp); EXPORT_TRACEPOINT_SYMBOL_GPL(sched_overutilized_tp); EXPORT_TRACEPOINT_SYMBOL_GPL(sched_util_est_cfs_tp); @@ -5668,7 +5668,7 @@ void sched_tick(void) struct rq *rq = cpu_rq(cpu); struct task_struct *curr = rq->curr; struct rq_flags rf; - unsigned long thermal_pressure; + unsigned long hw_pressure; u64 resched_latency; if (housekeeping_cpu(cpu, HK_TYPE_TICK)) @@ -5679,8 +5679,8 @@ void sched_tick(void) rq_lock(rq, &rf); update_rq_clock(rq); - thermal_pressure = arch_scale_thermal_pressure(cpu_of(rq)); - update_thermal_load_avg(rq_clock_thermal(rq), rq, thermal_pressure); + hw_pressure = arch_scale_hw_pressure(cpu_of(rq)); + update_hw_load_avg(rq_clock_hw(rq), rq, hw_pressure); curr->sched_class->task_tick(rq, curr, 0); if (sched_feat(LATENCY_WARN)) resched_latency = cpu_resched_latency(rq); |