Re: [PATCH 4/4] sched/cpuacct: Make user/system times in cpuacct.stat more precise
From: Daniel Jordan <hidden>
Date: 2021-03-17 22:29:41
Also in:
lkml
Andrey Ryabinin [off-list ref] writes:
static int cpuacct_stats_show(struct seq_file *sf, void *v)
{...
quoted hunk ↗ jump to hunk
for_each_possible_cpu(cpu) { u64 *cpustat = per_cpu_ptr(ca->cpustat, cpu)->cpustat; - val[CPUACCT_STAT_USER] += cpustat[CPUTIME_USER]; - val[CPUACCT_STAT_USER] += cpustat[CPUTIME_NICE]; - val[CPUACCT_STAT_SYSTEM] += cpustat[CPUTIME_SYSTEM]; - val[CPUACCT_STAT_SYSTEM] += cpustat[CPUTIME_IRQ]; - val[CPUACCT_STAT_SYSTEM] += cpustat[CPUTIME_SOFTIRQ]; + cputime.utime += cpustat[CPUTIME_USER]; + cputime.utime += cpustat[CPUTIME_NICE]; + cputime.stime += cpustat[CPUTIME_SYSTEM]; + cputime.stime += cpustat[CPUTIME_IRQ]; + cputime.stime += cpustat[CPUTIME_SOFTIRQ]; + + cputime.sum_exec_runtime += this_cpu_read(*ca->cpuusage); }
cputime.sum_exec_runtime += *per_cpu_ptr(ca->cpuusage, cpu);
Or the stats can all be 0...