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2026-06-30 - 11:00
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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 Tue Jun 30, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1088924536,0sleep10-21swapper/119:25:141
1092723930,0sleep30-21swapper/319:25:453
1092623430,0sleep20-21swapper/219:25:442
1092923329,0sleep00-21swapper/019:25:460
110629974,0cyclictest0-21swapper/023:41:280
8305060,0irq/26-0000:00:8940-21munin-run22:51:282
339960,0migration/39672-21sa100:06:283
339960,0migration/328089-21sh23:20:113
339960,0migration/324412-21sh21:44:033
339960,0migration/315929-21sh23:51:283
339960,0migration/315415-21sh21:38:563
29815060,0irq/29-eth0-tx-871-21munin-node21:11:420
29805060,0irq/28-eth0-rx-4814-40yum-updatesd-he23:26:163
29805060,0irq/28-eth0-rx-31919-21munin-node20:21:493
29805060,0irq/28-eth0-rx-23154-21iostat_ios22:21:453
29805060,0irq/28-eth0-rx-2089-21iostat_ios21:11:453
29805060,0irq/28-eth0-rx-15967-21taskset22:51:573
29805060,0irq/28-eth0-rx-14414-21python21:16:523
29805060,0irq/28-eth0-rx-0-21swapper/300:41:403
149960,0migration/04574-21sh23:25:330
149960,0migration/029972-21sh21:29:150
149960,0migration/025230-21sh22:58:420
149960,0migration/021459-21sh00:48:080
110639960,0cyclictest22421-21diskmemload23:12:281
110639960,0cyclictest0-21swapper/100:21:501
8305050,0irq/26-0000:00:23107-21hwlatdetect19:56:432
8305050,0irq/26-0000:00:0-21swapper/220:26:282
8305050,0irq/26-0000:00:0-21swapper/200:51:542
339950,0migration/3996-21fschecks_count19:41:423
339950,0migration/39927-21taskset00:06:363
339950,0migration/36587-21kthreadcore22:11:463
339950,0migration/35707-21kthreadcore00:21:523
339950,0migration/35174-21taskset22:27:303
339950,0migration/331008-21kthreadcore21:06:483
339950,0migration/330793-21munin-node20:46:453
339950,0migration/330496-21kthreadcore00:16:443
339950,0migration/329928-21kthreadcore23:56:463
339950,0migration/329214-21latency_hist00:36:283
339950,0migration/329190-21munin-node22:06:423
339950,0migration/326339-21fschecks_time21:46:413
339950,0migration/319695-21taskset23:15:583
339950,0migration/318613-21munin-node19:31:403
339950,0migration/318420-21latency_hist00:11:283
339950,0migration/31569-21kthreadcore23:41:463
339950,0migration/313495-21cpuspeed_turbos22:16:413
339950,0migration/313433-21kthreadcore20:56:463
339950,0migration/313372-21kthreadcore20:11:453
329950,0watchdog/328915-21sensors23:36:513
329950,0watchdog/328755-21tr00:51:483
329950,0watchdog/325602-21chrt21:03:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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