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2026-05-03 - 18:17
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack4slot4.osadl.org (updated Sun May 03, 2026 12:44:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71620rcu_preempt0-21swapper/110:05:101
71620rcu_preempt0-21swapper/110:05:101
71500rcu_preempt0-21swapper/109:55:061
71500rcu_preempt0-21swapper/109:55:061
71500rcu_preempt0-21swapper/109:55:061
46050490irq/122-QManpo20861-2110:48:550
46050490irq/122-QManpo20861-2110:48:550
71450rcu_preempt27421-21copy07:27:500
71450rcu_preempt27421-21copy07:27:500
46250450irq/120-QManpo23154-2110:48:551
46250450irq/120-QManpo23154-2110:48:551
2328299456cyclictest0-21swapper/110:35:191
2328299456cyclictest0-21swapper/110:35:191
2328299452cyclictest1901-21rm09:30:071
2328299452cyclictest1901-21rm09:30:071
2328299452cyclictest1901-21rm09:30:071
71440rcu_preempt7901-21sendmail-msp10:54:221
71440rcu_preempt7901-21sendmail-msp10:54:221
2328299444cyclictest0-21swapper/109:50:301
2328299444cyclictest0-21swapper/109:50:301
2328299444cyclictest0-21swapper/109:50:301
23282994420cyclictest0-21swapper/110:43:191
23282994420cyclictest0-21swapper/110:43:191
23282994420cyclictest0-21swapper/110:43:191
71430rcu_preempt0-21swapper/009:29:100
71430rcu_preempt0-21swapper/009:29:100
71430rcu_preempt0-21swapper/009:29:100
2328299433cyclictest0-21swapper/109:19:571
2328299433cyclictest0-21swapper/109:19:571
2328299431cyclictest21488-21/usr/sbin/munin11:08:061
2328299431cyclictest21488-21/usr/sbin/munin11:08:061
2328299431cyclictest17373-21apt-get08:47:521
2328299431cyclictest17373-21apt-get08:47:521
2328299431cyclictest17373-21apt-get08:47:521
23282994315cyclictest647-21apt-get07:47:521
23282994315cyclictest647-21apt-get07:47:521
23282994315cyclictest647-21apt-get07:47:521
46450420irq/118-QManpo13825-212
46450420irq/118-QManpo13825-212
46450420irq/118-QManpo13825-212
2328299421cyclictest11211-21ntp_states11:48:071
2328299421cyclictest11211-21ntp_states11:48:071
2328299421cyclictest11211-21ntp_states11:48:071
2328299421cyclictest10426-21apt-get08:22:511
2328299421cyclictest10426-21apt-get08:22:511
2328299421cyclictest10426-21apt-get08:22:511
71410rcu_preempt0-21swapper/112:13:321
71410rcu_preempt0-21swapper/112:13:321
71410rcu_preempt0-21swapper/009:55:450
71410rcu_preempt0-21swapper/009:55:450
71410rcu_preempt0-21swapper/009:55:450
2328299413cyclictest0-21swapper/112:32:541
2328299413cyclictest0-21swapper/112:32:541
2328299413cyclictest0-21swapper/112:17:551
2328299413cyclictest0-21swapper/112:17:551
2328299413cyclictest0-21swapper/112:17:551
2328299412cyclictest32559-21diskstats11:27:551
2328299412cyclictest32559-21diskstats11:27:551
2328299412cyclictest32559-21diskstats11:27:551
2328299412cyclictest32100-21meminfo07:42:591
2328299412cyclictest32100-21meminfo07:42:591
2328299412cyclictest32100-21meminfo07:42:591
2328299412cyclictest24244-21cpu10:12:521
2328299412cyclictest24244-21cpu10:12:521
2328299412cyclictest24244-21cpu10:12:521
2328299412cyclictest19203-21irqstats11:02:591
2328299412cyclictest19203-21irqstats11:02:591
2328299412cyclictest19203-21irqstats11:02:591
2328299412cyclictest0-21swapper/111:53:571
2328299412cyclictest0-21swapper/111:53:571
2328299411cyclictest27421-21copy07:27:431
2328299411cyclictest27421-21copy07:27:431
2328299411cyclictest18728-21apt-get12:02:511
2328299411cyclictest18728-21apt-get12:02:511
2328299411cyclictest18728-21apt-get12:02:511
23282994118cyclictest21732-21diskstats10:07:571
23282994118cyclictest21732-21diskstats10:07:571
23282994118cyclictest21732-21diskstats10:07:571
23282994116cyclictest5225-21/usr/sbin/munin11:38:021
23282994116cyclictest5225-21/usr/sbin/munin11:38:021
71400rcu_preempt2464-21cat11:32:453
71400rcu_preempt2464-21cat11:32:453
71400rcu_preempt2464-21cat11:32:453
71400rcu_preempt23191-1kworker/2:3H10:15:072
71400rcu_preempt23191-1kworker/2:3H10:15:072
71400rcu_preempt23191-1kworker/2:3H10:15:072
71400rcu_preempt0-21swapper/212:29:272
71400rcu_preempt0-21swapper/212:29:272
71400rcu_preempt0-21swapper/212:29:272
71400rcu_preempt0-21swapper/210:39:532
71400rcu_preempt0-21swapper/210:39:532
71400rcu_preempt0-21swapper/208:13:052
71400rcu_preempt0-21swapper/208:13:052
71400rcu_preempt0-21swapper/011:30:210
71400rcu_preempt0-21swapper/011:30:210
71400rcu_preempt0-21swapper/011:30:210
2328299404cyclictest0-21swapper/112:28:071
2328299404cyclictest0-21swapper/112:28:071
2328299404cyclictest0-21swapper/112:28:071
2328299402cyclictest8686-21diskstats09:42:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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