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2026-08-06 - 01:59
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack1slot2.osadl.org (updated Thu Aug 06, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
282024536,0sleep20-21swapper/219:28:172
2841323627,0sleep30-21swapper/319:24:343
258923425,0sleep10-21swapper/119:25:401
286423319,0sleep00-21swapper/019:28:430
329970,0watchdog/329912-21sh00:09:173
30039976,0cyclictest0-21swapper/022:20:340
339960,0migration/38496-21sh23:17:233
339960,0migration/332667-21sh00:46:383
339960,0migration/332544-21sh21:55:053
339960,0migration/318023-21sh22:07:043
329960,0watchdog/33609-21kthreadcore00:49:493
329960,0watchdog/317052-21sh23:22:293
30039966,0cyclictest0-21swapper/023:39:430
30039960,0cyclictest24448-21taskset00:42:370
29805060,0irq/28-eth0-rx-5052-21iostat22:19:473
29805060,0irq/28-eth0-rx-20972-21python21:29:523
29805060,0irq/28-eth0-rx-20563-21kthreadcore23:24:463
29805060,0irq/28-eth0-rx-18510-21perl19:39:423
8305050,0irq/26-0000:00:14420-21munin-node20:44:413
339950,0migration/34395-21munin-node00:09:543
339950,0migration/34117-21munin-node20:14:433
339950,0migration/331712-21kthreadcore23:49:483
339950,0migration/330008-21fschecks_count22:34:433
339950,0migration/32939-21kthreadcore22:54:483
339950,0migration/32857-21kthreadcore21:39:513
339950,0migration/327751-21taskset22:30:023
339950,0migration/32759-21fschecks_time21:59:443
339950,0migration/327203-21kthreadcore00:24:533
339950,0migration/325024-21munin-node19:44:413
339950,0migration/324920-21kthreadcore20:04:473
339950,0migration/32342-21sh22:16:093
339950,0migration/321662-21munin-node20:49:403
339950,0migration/320909-21kthreadcore00:39:493
339950,0migration/320429-21munin-node19:59:563
339950,0migration/319448-21kernelversion20:24:503
339950,0migration/317718-21sh00:57:213
339950,0migration/316115-21taskset23:04:303
339950,0migration/313196-21munin-node00:14:573
329950,0watchdog/39973-21kthreadcore21:44:493
329950,0watchdog/36831-21sh22:39:453
329950,0watchdog/328877-21telnet20:54:403
329950,0watchdog/317490-21chrt21:05:293
329950,0watchdog/316482-21kthreadcore22:44:453
329950,0watchdog/310982-21sensors23:54:533
329950,0watchdog/30-21swapper/300:39:053
30169955,0cyclictest0-21swapper/222:28:402
30169955,0cyclictest0-21swapper/221:58:152
30169950,0cyclictest0-21swapper/222:39:242
30169950,0cyclictest0-21swapper/200:31:202
30039955,0cyclictest5994-21kworker/0:121:29:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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