Schedtop not displaying delay stats
Enable kernel schedstats which is disabled by default since switching to CentOS. Adapt to format change. Change-Id: I70da51eaca0518a8bb09d4b11d6f98b00c857059 Signed-off-by: Scott Little <scott.little@windriver.com>
This commit is contained in:
Tee Ngo
Scott Little
parent
1e75d19c9a
commit
de2f57ce6b
@ -32,3 +32,10 @@ install %{_buildsubdir}/occtop %{buildroot}/usr/bin
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%defattr(-,root,root,-)
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/usr/bin/*
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%post
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grep schedstats /etc/sysctl.conf
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if [ $? -ne 0 ]; then
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echo -e "\nkernel.sched_schedstats=1" >> /etc/sysctl.conf
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sysctl -p &>/dev/null
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fi
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exit 0
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@ -603,50 +603,50 @@ sub read_sched
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$pid = $::tids{$tid};
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# NOTE: Format change over time: OLD: se.statistics.X, NEW: se.statistics->X
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#cat /proc/1/sched
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#init (1, #threads: 1)
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#---------------------------------------------------------
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#se.exec_start : 465303823.781710
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#se.vruntime : 8593378.836250
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#se.sum_exec_runtime : 5858.837187
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#se.statistics.wait_start : 0.000000
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#se.statistics.sleep_start : 465303823.781710
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#se.statistics.block_start : 0.000000
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#se.statistics.sleep_max : 5124.647630
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#se.statistics.block_max : 0.009897
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#se.statistics.exec_max : 2.198575
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#se.statistics.slice_max : 0.136734
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#se.statistics.wait_max : 19.968956
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#se.statistics.wait_sum : 256.424005
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#se.statistics.wait_count : 52480
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#se.statistics.iowait_sum : 0.000000
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#se.statistics.iowait_count : 0
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#se.nr_migrations : 0
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#se.statistics.nr_migrations_cold : 0
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#se.statistics.nr_failed_migrations_affine: 0
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#se.statistics.nr_failed_migrations_running: 0
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#se.statistics.nr_failed_migrations_hot: 0
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#se.statistics.nr_forced_migrations : 0
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#se.statistics.nr_wakeups : 51887
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#se.statistics.nr_wakeups_sync : 0
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#se.statistics.nr_wakeups_migrate : 0
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#se.statistics.nr_wakeups_local : 51886
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#se.statistics.nr_wakeups_remote : 1
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#se.statistics.nr_wakeups_affine : 0
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#se.statistics.nr_wakeups_affine_attempts: 0
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#se.statistics.nr_wakeups_passive : 0
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#se.statistics.nr_wakeups_idle : 0
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#avg_atom : 0.058721
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#avg_per_cpu : 0.000001
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#nr_switches : 99774
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#nr_voluntary_switches : 94546
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#nr_involuntary_switches : 5228
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#se.load.weight : 1024
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#policy : 0
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#prio : 120
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#migrate_disable : 0
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#rt.nr_cpus_allowed : 45
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#clock-delta : 68
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#systemd (1, #threads: 1)
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#-------------------------------------------------------------------
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#se.exec_start : 33792676.285222
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#se.vruntime : 28019997.693224
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#se.sum_exec_runtime : 21918.207287
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#se.nr_migrations : 5413
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#se.statistics->sum_sleep_runtime : 1166561.198533
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#se.statistics->wait_start : 0.000000
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#se.statistics->sleep_start : 33792676.285222
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#se.statistics->block_start : 0.000000
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#se.statistics->sleep_max : 18951.679990
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#se.statistics->block_max : 0.000000
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#se.statistics->exec_max : 0.909747
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#se.statistics->slice_max : 1.790123
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#se.statistics->wait_max : 4.026544
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#se.statistics->wait_sum : 507.245963
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#se.statistics->wait_count : 2540
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#se.statistics->iowait_sum : 0.000000
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#se.statistics->iowait_count : 0
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#se.statistics->nr_migrations_cold : 0
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#se.statistics->nr_failed_migrations_affine : 67
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#se.statistics->nr_failed_migrations_running : 1
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#se.statistics->nr_failed_migrations_hot : 1
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#se.statistics->nr_forced_migrations : 0
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#se.statistics->nr_wakeups : 2472
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#se.statistics->nr_wakeups_sync : 34
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#se.statistics->nr_wakeups_migrate : 176
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#se.statistics->nr_wakeups_local : 1442
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#se.statistics->nr_wakeups_remote : 1030
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#se.statistics->nr_wakeups_affine : 155
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#se.statistics->nr_wakeups_affine_attempts : 969
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#se.statistics->nr_wakeups_passive : 0
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#se.statistics->nr_wakeups_idle : 0
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#avg_atom : 0.286970
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#avg_per_cpu : 4.049179
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#nr_switches : 76378
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#nr_voluntary_switches : 72308
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#nr_involuntary_switches : 4070
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#se.load.weight : 1024
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#policy : 0
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#prio : 120
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#clock-delta : 28
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# parse /proc/<pid>/task/<tid>/sched
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$file = '/proc/' . $pid . '/task/' . $tid . '/sched';
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@ -657,17 +657,17 @@ sub read_sched
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}
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my ($k, $v, $c0);
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LOOP_SCHED: while (<$fh>) {
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if (/^se\.statistics\.wait_max\s+:\s+(\S+)/) {
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if (/^se\.statistics.{1,2}wait_max\s+:\s+(\S+)/) {
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$wait_max = $1;
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} elsif (/^se\.statistics\.wait_sum\s+:\s+(\S+)/) {
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} elsif (/^se\.statistics.{1,2}wait_sum\s+:\s+(\S+)/) {
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$wait_sum = $1;
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} elsif (/^se\.statistics\.wait_count\s+:\s+(\S+)/) {
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} elsif (/^se\.statistics.{1,2}wait_count\s+:\s+(\S+)/) {
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$wait_count = $1;
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} elsif (/^se\.statistics\.exec_max\s+:\s+(\S+)/) {
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} elsif (/^se\.statistics.{1,2}exec_max\s+:\s+(\S+)/) {
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$exec_max = $1;
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} elsif (/^se\.statistics\.iowait_sum\s+:\s+(\S+)/) {
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} elsif (/^se\.statistics.{1,2}iowait_sum\s+:\s+(\S+)/) {
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$iowait_sum = $1;
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} elsif (/^se\.statistics\.iowait_count\s+:\s+(\S+)/) {
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} elsif (/^se\.statistics.{1,2}iowait_count\s+:\s+(\S+)/) {
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$iowait_count = $1;
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} elsif (/^se\.sum_exec_runtime\s+:\s+(\S+)/) {
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$exec_runtime = $1;
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