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sched/walt: Add thermal pressure to cpu_util TP

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In the event that thermal throttling is under way, and user has not
enabled update_cpu_capacity trace point, add a backup way of quickly
determining scheduler under thermal constraints by displaying the
thermal pressure in the sched_cpu_util trace point.

Change-Id: I36b8f23e37b4e9b42770e1535feabb9d513fb730
Signed-off-by: Shaleen Agrawal <quic_shalagra@quicinc.com>
This commit is contained in:
Shaleen Agrawal 2022-05-16 11:26:39 -07:00 committed by Rishabh Bhatnagar
parent 7adf761c84
commit 8075477f59
1 changed files with 4 additions and 2 deletions
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6
kernel/sched/walt/trace.h
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@ -950,6 +950,7 @@ TRACE_EVENT(sched_cpu_util,
__field(unsigned int, nr_rtg_high_prio_tasks)
__field(u64, prs_gprs)
__field(unsigned int, lowest_mask)
__field(unsigned long, thermal_pressure)
),
TP_fast_assign(
@ -974,16 +975,17 @@ TRACE_EVENT(sched_cpu_util,
__entry->lowest_mask = 0;
else
__entry->lowest_mask = cpumask_bits(lowest_mask)[0];
__entry->thermal_pressure = arch_scale_thermal_pressure(cpu);
),
TP_printk("cpu=%d nr_running=%d cpu_util=%ld cpu_util_cum=%ld capacity_curr=%lu capacity=%lu capacity_orig=%lu idle_exit_latency=%u irqload=%llu online=%u, inactive=%u, halted=%u, reserved=%u, high_irq_load=%u nr_rtg_hp=%u prs_gprs=%llu lowest_mask=0x%x",
TP_printk("cpu=%d nr_running=%d cpu_util=%ld cpu_util_cum=%ld capacity_curr=%lu capacity=%lu capacity_orig=%lu idle_exit_latency=%u irqload=%llu online=%u, inactive=%u, halted=%u, reserved=%u, high_irq_load=%u nr_rtg_hp=%u prs_gprs=%llu lowest_mask=0x%x thermal_pressure=%llu",
__entry->cpu, __entry->nr_running, __entry->cpu_util,
__entry->cpu_util_cum, __entry->capacity_curr,
__entry->capacity, __entry->capacity_orig,
__entry->idle_exit_latency, __entry->irqload, __entry->online,
__entry->inactive, __entry->halted, __entry->reserved, __entry->high_irq_load,
__entry->nr_rtg_high_prio_tasks, __entry->prs_gprs,
__entry->lowest_mask)
__entry->lowest_mask, __entry->thermal_pressure)
);
TRACE_EVENT(sched_compute_energy,