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2026-06-22 - 07:02
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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 100 highest latencies:
System rack1slot2.osadl.org (updated Mon Jun 22, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1574924940,0sleep20-21swapper/219:20:502
2257824738,0sleep10-21swapper/119:24:261
2236024637,0sleep30-21swapper/319:21:553
2261922925,0sleep00-21swapper/019:24:570
8305060,0irq/26-0000:00:26672-21crond20:35:493
4160,0ktimersoftd/00-21swapper/000:25:100
35160,0ktimersoftd/30-21swapper/323:13:453
35160,0ktimersoftd/30-21swapper/321:26:133
339960,0migration/38243-21sh22:22:443
339960,0migration/36962-21sh00:32:513
339960,0migration/36292-21sh23:17:173
339960,0migration/321379-21sh23:07:353
339960,0migration/310756-21sh22:43:143
29815060,0irq/29-eth0-tx-6409-21irqstats21:46:062
29805060,0irq/28-eth0-rx-26360-21iostat_ios23:31:053
29805060,0irq/28-eth0-rx-15722-21awk22:10:493
29805060,0irq/28-eth0-rx-12441-21munin-node00:01:013
227679965,0cyclictest24160-21tr22:51:081
227679960,0cyclictest0-21swapper/122:36:011
227669966,0cyclictest0-21swapper/023:55:090
227669966,0cyclictest0-21swapper/000:02:430
149960,0migration/030679-21sh23:14:220
149960,0migration/012851-21sh00:16:260
4150,0ktimersoftd/00-21swapper/019:46:160
339950,0migration/332459-21kthreadcore00:11:073
339950,0migration/331212-21munin-node22:01:013
339950,0migration/331142-21kthreadcore22:56:073
339950,0migration/33026-21if_eth000:51:053
339950,0migration/330103-21kthreadcore19:51:083
339950,0migration/329062-21taskset20:11:083
339950,0migration/326633-21taskset21:17:293
339950,0migration/324657-21kthreadcore21:56:073
339950,0migration/323413-21kthreadcore21:36:093
339950,0migration/321385-21fschecks_time22:51:043
339950,0migration/320842-21kthreadcore00:41:093
339950,0migration/319431-21taskset21:13:053
339950,0migration/318405-21aten_r1power_fr22:31:023
339950,0migration/317078-21munin-node22:11:043
339950,0migration/310988-21kthreadcore00:16:123
329950,0watchdog/326932-21kthreadcore00:26:093
329950,0watchdog/316228-21munin-node23:41:093
329950,0watchdog/30-21swapper/319:46:003
329950,0watchdog/30-21swapper/300:22:013
29815050,0irq/29-eth0-tx-30181-21munin-node19:31:040
29815050,0irq/29-eth0-tx-24748-21tr23:11:072
29815050,0irq/29-eth0-tx-2061-21jbd2/md0-800:05:492
29815050,0irq/29-eth0-tx-18741-21sendmail_mailqu00:01:122
29815050,0irq/29-eth0-tx-15327-21if_err_eth1.323:06:062
29815050,0irq/29-eth0-tx-0-21swapper/200:50:342
29815050,0irq/29-eth0-tx-0-21swapper/021:23:330
29815050,0irq/29-eth0-tx-0-21swapper/021:15:190
29815050,0irq/29-eth0-tx-0-21swapper/019:51:110
29815050,0irq/29-eth0-tx-0-21swapper/019:29:590
29805050,0irq/28-eth0-rx-4781-21ssh21:45:523
29805050,0irq/28-eth0-rx-3932-21kthreadcore23:36:093
29805050,0irq/28-eth0-rx-3552-21lldpd21:45:033
29805050,0irq/28-eth0-rx-31846-21seq22:17:433
29805050,0irq/28-eth0-rx-27200-21kthreadcore00:46:083
29805050,0irq/28-eth0-rx-2589-21ssh23:53:313
29805050,0irq/28-eth0-rx-209762sleep321:52:473
29805050,0irq/28-eth0-rx-15779-21ntpq22:26:103
29805050,0irq/28-eth0-rx-0-21swapper/323:47:273
29805050,0irq/28-eth0-rx-0-21swapper/323:26:243
29805050,0irq/28-eth0-rx-0-21swapper/323:21:453
29805050,0irq/28-eth0-rx-0-21swapper/322:36:003
29805050,0irq/28-eth0-rx-0-21swapper/320:51:013
29805050,0irq/28-eth0-rx-0-21swapper/320:41:023
29805050,0irq/28-eth0-rx-0-21swapper/320:26:073
29805050,0irq/28-eth0-rx-0-21swapper/300:38:303
29805050,0irq/28-eth0-rx-0-21swapper/300:09:413
27150,0ktimersoftd/20-21swapper/219:46:162
27150,0ktimersoftd/20-21swapper/200:25:102
249950,0watchdog/28415-21aten_r1power_fr00:36:012
227689950,0cyclictest0-21swapper/222:16:032
227669955,0cyclictest0-21swapper/023:42:130
227669955,0cyclictest0-21swapper/022:48:370
227669955,0cyclictest0-21swapper/019:36:070
227669955,0cyclictest0-21swapper/000:47:200
227669950,0cyclictest0-21swapper/023:39:320
227669950,0cyclictest0-21swapper/023:21:440
227669950,0cyclictest0-21swapper/023:01:520
227669950,0cyclictest0-21swapper/022:30:580
227669950,0cyclictest0-21swapper/020:25:280
227669950,0cyclictest0-21swapper/000:31:440
19150,0ktimersoftd/10-21swapper/119:46:161
19150,0ktimersoftd/10-21swapper/100:25:101
179950,0migration/1655-21if_eth000:31:041
179950,0migration/13290-21aten_r1power_cu22:41:001
179950,0migration/126243-21timerandwakeup21:16:131
179950,0migration/119165-21taskset00:01:181
179950,0migration/118558-21kthreadcore20:51:051
179950,0migration/118053-21irqrtprio23:26:061
179950,0migration/111415-21taskset23:58:451
169950,0watchdog/117186-21ssh22:11:041
149950,0migration/07849-21munin-node20:41:120
149950,0migration/07628-21kthreadcore21:06:060
149950,0migration/03495-21kthreadcore20:16:070
149950,0migration/031746-21munin-node23:16:030
149950,0migration/02997-21idleruntime21:26:040
149950,0migration/026784-21kthreadcore00:06:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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