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2026-09-04 - 03:21
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack1slot1.osadl.org (updated Fri Sep 04, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
421424950,6sleep121-21ksoftirqd/119:05:191
49882225149,60sleep00-21swapper/019:06:390
51422205154,21sleep20-21swapper/219:08:402
51582202163,25sleep30-21swapper/319:08:523
60672590,0sleep20-21swapper/221:20:142
5356991717,0cyclictest28-21ksoftirqd/221:30:192
5348991412,0cyclictest0-21swapper/121:50:141
135752130,0sleep1111rcu_preempt23:03:101
5356991212,0cyclictest28-21ksoftirqd/221:50:172
5356991210,1cyclictest28-21ksoftirqd/219:25:012
535699120,12cyclictest0-21swapper/221:17:532
534899120,12cyclictest0-21swapper/121:55:191
5340991211,1cyclictest9-21ksoftirqd/023:55:140
5356991110,1cyclictest28-21ksoftirqd/219:45:002
535699110,1cyclictest0-21swapper/222:44:262
5340991111,0cyclictest9-21ksoftirqd/023:25:000
5340991110,1cyclictest9-21ksoftirqd/000:15:000
536199100,7cyclictest9211-21apt-get20:25:123
535699109,1cyclictest28-21ksoftirqd/223:44:172
535699109,1cyclictest28-21ksoftirqd/219:35:002
535699108,1cyclictest28-21ksoftirqd/220:15:012
535699101,7cyclictest19274-21kworker/2:223:10:252
535699100,2cyclictest0-21swapper/222:45:182
534099109,1cyclictest9-21ksoftirqd/023:45:210
534099109,1cyclictest9-21ksoftirqd/023:05:130
534099109,1cyclictest9-21ksoftirqd/022:25:130
534099109,1cyclictest9-21ksoftirqd/022:10:160
534099108,1cyclictest9-21ksoftirqd/019:15:130
53619998,1cyclictest30410-21diskmemload23:47:473
53619992,3cyclictest733-21sshd22:30:293
53569999,0cyclictest28-21ksoftirqd/223:05:132
53569999,0cyclictest0-21swapper/223:55:572
53569999,0cyclictest0-21swapper/222:52:362
53569999,0cyclictest0-21swapper/219:27:262
53569998,1cyclictest28-21ksoftirqd/222:20:002
53569997,1cyclictest28-21ksoftirqd/200:30:162
53569996,1cyclictest61650irq/122-eno120:00:002
53569996,1cyclictest0-21swapper/200:11:152
53489990,8cyclictest0-21swapper/123:17:391
53489990,8cyclictest0-21swapper/122:52:421
53489990,8cyclictest0-21swapper/119:15:021
53489990,7cyclictest0-21swapper/123:24:011
53409999,0cyclictest9-21ksoftirqd/022:05:020
53409999,0cyclictest9-21ksoftirqd/021:45:190
53409999,0cyclictest9-21ksoftirqd/021:15:110
53409998,1cyclictest9-21ksoftirqd/022:35:130
53409998,1cyclictest9-21ksoftirqd/021:55:190
53409998,1cyclictest9-21ksoftirqd/020:35:000
53409998,1cyclictest9-21ksoftirqd/019:55:150
53409998,0cyclictest9-21ksoftirqd/021:50:160
53409990,8cyclictest5334-21cyclictest22:56:370
53409990,7cyclictest0-21swapper/000:04:240
53409990,5cyclictest3727-21perf22:50:010
53619987,1cyclictest3096-21ntp_kernel_err21:15:183
53619986,1cyclictest35-21ksoftirqd/321:05:003
53619986,1cyclictest35-21ksoftirqd/320:05:003
53619983,4cyclictest18728-21nscd00:18:573
53619983,4cyclictest13237-21apt-get00:35:133
53619982,5cyclictest1-21systemd23:12:083
53619981,5cyclictest0-21swapper/322:39:543
53619980,7cyclictest0-21swapper/319:15:463
53619980,4cyclictest0-21swapper/323:17:553
53569987,1cyclictest28-21ksoftirqd/221:40:162
53569987,1cyclictest28-21ksoftirqd/221:40:162
53569980,7cyclictest0-21swapper/223:32:522
53569980,7cyclictest0-21swapper/222:31:182
53569980,7cyclictest0-21swapper/222:20:052
53569980,7cyclictest0-21swapper/221:46:152
53569980,7cyclictest0-21swapper/200:07:062
53569980,7cyclictest0-21swapper/200:01:222
53569980,0cyclictest0-21swapper/222:10:042
53489980,8cyclictest0-21swapper/121:26:491
53489980,8cyclictest0-21swapper/100:05:031
53489980,7cyclictest0-21swapper/121:45:091
53409988,0cyclictest9-21ksoftirqd/023:25:200
53409988,0cyclictest9-21ksoftirqd/022:40:150
53409988,0cyclictest9-21ksoftirqd/019:50:140
53409987,1cyclictest9-21ksoftirqd/023:10:180
53409987,1cyclictest9-21ksoftirqd/022:35:010
53409987,1cyclictest9-21ksoftirqd/022:20:130
53409987,1cyclictest9-21ksoftirqd/022:20:010
53409987,1cyclictest9-21ksoftirqd/021:41:100
53409987,1cyclictest9-21ksoftirqd/021:41:100
53409987,1cyclictest9-21ksoftirqd/000:20:000
53409986,2cyclictest9-21ksoftirqd/022:50:170
53409986,1cyclictest9-21ksoftirqd/023:00:210
53409986,1cyclictest9-21ksoftirqd/021:31:200
53409986,1cyclictest9-21ksoftirqd/020:10:000
53409986,1cyclictest11301-21snmpd20:48:260
53409981,6cyclictest28081-21ls21:05:000
53409981,2cyclictest6273-21aten2.4-expect00:25:110
53409981,1cyclictest8644-21ssh21:24:220
53409980,1cyclictest441-21smartctl00:15:200
53409980,1cyclictest0-21swapper/021:05:110
53409980,0cyclictest0-21swapper/020:50:190
26596286,1sleep228-21ksoftirqd/221:00:172
53619976,1cyclictest35-21ksoftirqd/319:30:013
53619976,1cyclictest35-21ksoftirqd/319:25:003
53619976,1cyclictest11301-21snmpd23:55:113
53619976,1cyclictest11301-21snmpd23:39:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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