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sched: walt: expand waltgov_util_update trace point

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When experiencing frequency related issues, it will be helpful to be
aware of any potential clamping issues, as well as reasons why we might
end up not updating to a different frequency.

Change-Id: I0be24d713421357e077cd01d5c84f43138a17b24
Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>
This commit is contained in:
Shaleen Agrawal 2021-05-24 10:31:38 -07:00 committed by Rishabh Bhatnagar
parent a62a217748
commit 39605473ba
2 changed files with 23 additions and 9 deletions
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3
kernel/sched/walt/cpufreq_walt.c
View File

@ -206,7 +206,8 @@ static unsigned int get_next_freq(struct waltgov_policy *wg_policy,
unsigned int freq = policy->cpuinfo.max_freq;
freq = map_util_freq(util, freq, max);
trace_waltgov_next_freq(policy->cpu, util, max, freq);
trace_waltgov_next_freq(policy->cpu, util, max, freq, policy->min, policy->max,
wg_policy->cached_raw_freq, wg_policy->need_freq_update);
if (freq == wg_policy->cached_raw_freq && !wg_policy->need_freq_update)
return wg_policy->next_freq;

29
kernel/sched/walt/trace.h
View File

@ -647,25 +647,38 @@ TRACE_EVENT(waltgov_util_update,
TRACE_EVENT(waltgov_next_freq,
TP_PROTO(unsigned int cpu, unsigned long util, unsigned long max,
unsigned int freq),
TP_ARGS(cpu, util, max, freq),
unsigned int freq, unsigned int min_freq, unsigned int max_freq,
unsigned int cached_raw_freq, bool need_freq_update),
TP_ARGS(cpu, util, max, freq, min_freq, max_freq, cached_raw_freq, need_freq_update),
TP_STRUCT__entry(
__field(unsigned int, cpu)
__field(unsigned long, util)
__field(unsigned long, max)
__field(unsigned int, freq)
__field(unsigned int, min_freq)
__field(unsigned int, max_freq)
__field(unsigned int, cached_raw_freq)
__field(bool, need_freq_update)
),
TP_fast_assign(
__entry->cpu = cpu;
__entry->util = util;
__entry->max = max;
__entry->freq = freq;
__entry->cpu = cpu;
__entry->util = util;
__entry->max = max;
__entry->freq = freq;
__entry->min_freq = min_freq;
__entry->max_freq = max_freq;
__entry->cached_raw_freq = cached_raw_freq;
__entry->need_freq_update = need_freq_update;
),
TP_printk("cpu=%u util=%lu max=%lu freq=%u",
TP_printk("cpu=%u util=%lu max=%lu freq=%u min_freq=%lu max_freq=%lu cached_raw_freq=%lu need_update=%d",
__entry->cpu,
__entry->util,
__entry->max,
__entry->freq)
__entry->freq,
__entry->min_freq,
__entry->max_freq,
__entry->cached_raw_freq,
__entry->need_freq_update)
);
TRACE_EVENT(walt_active_load_balance,