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2026-06-27 - 12:53
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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 Sat Jun 27, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3256024434,0sleep30-21swapper/319:24:123
3247823930,0sleep20-21swapper/219:23:142
3239223525,0sleep10-21swapper/119:22:131
3263723127,0sleep00-21swapper/019:25:090
338991212,0cyclictest6537-21sensors21:56:360
339970,0migration/319681-21sh21:29:313
4160,0ktimersoftd/00-21swapper/022:07:460
3409960,0cyclictest0-21swapper/222:20:422
3399965,0cyclictest937-21crond00:26:141
3399965,0cyclictest24120-21irqrtprio00:01:291
3389960,0cyclictest0-21swapper/023:19:040
339960,0migration/37305-21sh21:57:413
339960,0migration/34852-21sh23:50:323
339960,0migration/327853-21munin-node23:26:283
339960,0migration/324395-21sh23:06:163
339960,0migration/318874-21sh23:37:443
329960,0watchdog/313392-21ssh23:55:093
29815060,0irq/29-eth0-tx-3271-21sed23:46:382
29805060,0irq/28-eth0-rx-12357-21port_sshpriv21:41:363
149960,0migration/05764-21sh22:53:200
149960,0migration/032465-21kthreadcore20:31:310
149960,0migration/020329-21sh00:55:480
149960,0migration/019067-21sh22:24:580
149960,0migration/017849-21needreboot20:41:330
8305050,0irq/26-0000:00:5908-21munin-run21:41:132
8305050,0irq/26-0000:00:3223-13audispd22:01:132
8305050,0irq/26-0000:00:0-21swapper/223:41:402
3409955,0cyclictest0-21swapper/223:29:162
3409955,0cyclictest0-21swapper/222:53:392
3409955,0cyclictest0-21swapper/222:32:502
3409955,0cyclictest0-21swapper/200:52:122
3409950,0cyclictest0-21swapper/222:57:072
3399950,0cyclictest0-21swapper/121:40:591
3389950,0cyclictest0-21swapper/023:01:060
3389950,0cyclictest0-21swapper/022:32:050
3389950,0cyclictest0-21swapper/000:38:220
339950,0migration/39649-21aten_r1power_vo23:16:263
339950,0migration/38950-21kthreadcore20:36:303
339950,0migration/38748-21sh00:28:413
339950,0migration/36953-21taskset19:26:363
339950,0migration/36401-21kernelversion22:36:303
339950,0migration/36038-21kthreadcore23:31:303
339950,0migration/35079-21sh21:39:203
339950,0migration/33924-21switchtime21:16:373
339950,0migration/33445-21switchtime19:46:383
339950,0migration/329259-21kthreadcore20:51:313
339950,0migration/329185-21fschecks_time22:31:253
339950,0migration/329120-21sh21:35:443
339950,0migration/326342-21irqcore00:21:323
339950,0migration/326307-21aten_r1power_po22:11:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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