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2026-04-23 - 02:52
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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 Thu Apr 23, 2026 00:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71670rcu_preempt0-21swapper/022:03:300
71670rcu_preempt0-21swapper/022:03:300
71670rcu_preempt0-21swapper/022:03:300
71580rcu_preempt0-21swapper/123:09:361
71580rcu_preempt0-21swapper/123:09:361
46050490irq/122-QManpo2089-2110:48:550
46050490irq/122-QManpo2089-2110:48:550
131422490chrt46450irq/118-QMan10:48:552
131422490chrt46450irq/118-QMan10:48:552
131422490chrt46450irq/118-QMan10:48:552
130312490chrt46250irq/120-QMan10:48:551
130312490chrt46250irq/120-QMan10:48:551
130312490chrt46250irq/120-QMan10:48:551
71460rcu_preempt7769-1kworker/0:1H00:27:560
71460rcu_preempt7769-1kworker/0:1H00:27:560
220299459cyclictest0-21swapper/100:03:401
220299459cyclictest0-21swapper/100:03:401
220299459cyclictest0-21swapper/100:03:401
2202994512cyclictest1959-21runrttasks00:22:441
2202994512cyclictest1959-21runrttasks00:22:441
2202994310cyclictest0-21swapper/121:25:371
2202994310cyclictest0-21swapper/121:25:371
2202994310cyclictest0-21swapper/121:25:371
2201994331cyclictest1837-21apt-get21:07:380
2201994331cyclictest1837-21apt-get21:07:380
71420rcu_preempt32603-1ssh22:04:323
71420rcu_preempt32603-1ssh22:04:323
71420rcu_preempt32603-1ssh22:04:323
71420rcu_preempt0-21swapper/022:29:080
71420rcu_preempt0-21swapper/022:29:080
71420rcu_preempt0-21swapper/022:29:080
71410rcu_preempt26792-21kworker/1:323:52:591
71410rcu_preempt26792-21kworker/1:323:52:591
71410rcu_preempt0-21swapper/023:59:570
71410rcu_preempt0-21swapper/023:59:570
71410rcu_preempt0-21swapper/022:08:270
71410rcu_preempt0-21swapper/022:08:270
71410rcu_preempt0-21swapper/022:08:270
71400rcu_preempt4573-21runrttasks00:10:421
71400rcu_preempt4573-21runrttasks00:10:421
71400rcu_preempt4573-21runrttasks00:10:421
71400rcu_preempt0-21swapper/321:45:303
71400rcu_preempt0-21swapper/321:45:303
71400rcu_preempt0-21swapper/321:45:303
71400rcu_preempt0-21swapper/000:15:590
71400rcu_preempt0-21swapper/000:15:590
71400rcu_preempt0-21swapper/000:15:590
2202994020cyclictest12466-21/usr/sbin/munin19:47:511
2202994020cyclictest12466-21/usr/sbin/munin19:47:511
2202994018cyclictest18796-21sed22:37:571
2202994018cyclictest18796-21sed22:37:571
2202994018cyclictest18796-21sed22:37:571
2202994016cyclictest21189-1kworker/1:1H21:48:351
2202994016cyclictest21189-1kworker/1:1H21:48:351
2202994016cyclictest21189-1kworker/1:1H21:48:351
2202994014cyclictest4874-21sendmail-msp19:25:151
2202994014cyclictest4874-21sendmail-msp19:25:151
2202994012cyclictest3676-21latency21:12:481
2202994012cyclictest3676-21latency21:12:481
71390rcu_preempt27114-21apt-get20:42:501
71390rcu_preempt27114-21apt-get20:42:501
71390rcu_preempt27114-21apt-get20:42:501
71390rcu_preempt20812-21ssh22:42:382
71390rcu_preempt20812-21ssh22:42:382
71390rcu_preempt20812-21ssh22:42:382
71390rcu_preempt13569-1kworker/2:3H22:32:522
71390rcu_preempt13569-1kworker/2:3H22:32:522
71390rcu_preempt0-21swapper/320:32:543
71390rcu_preempt0-21swapper/320:32:543
71390rcu_preempt0-21swapper/220:52:432
71390rcu_preempt0-21swapper/220:52:432
71390rcu_preempt0-21swapper/220:52:432
71390rcu_preempt0-21swapper/122:26:561
71390rcu_preempt0-21swapper/122:26:561
71390rcu_preempt0-21swapper/122:26:561
71390rcu_preempt0-21swapper/022:43:420
71390rcu_preempt0-21swapper/022:43:420
71390rcu_preempt0-21swapper/022:43:420
71390rcu_preempt0-21swapper/021:46:340
71390rcu_preempt0-21swapper/021:46:340
71390rcu_preempt0-21swapper/021:46:340
71390rcu_preempt0-21swapper/021:29:110
71390rcu_preempt0-21swapper/021:29:110
71390rcu_preempt0-21swapper/021:29:110
71390rcu_preempt0-21swapper/021:22:340
71390rcu_preempt0-21swapper/019:43:000
71390rcu_preempt0-21swapper/019:43:000
71390rcu_preempt0-21swapper/019:43:000
71390rcu_preempt0-21swapper/019:43:000
71390rcu_preempt0-21swapper/000:33:360
71390rcu_preempt0-21swapper/000:33:360
2202993919cyclictest16118-21diskstats00:32:441
2202993919cyclictest16118-21diskstats00:32:441
2202993912cyclictest1959-21runrttasks23:42:491
2202993912cyclictest1959-21runrttasks23:42:491
2202993910cyclictest6671-21ssh00:14:091
2202993910cyclictest6671-21ssh00:14:091
2202993910cyclictest6671-21ssh00:14:091
71380rcu_preempt24779-1kworker/0:0H22:57:470
71380rcu_preempt24779-1kworker/0:0H22:57:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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