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2026-05-04 - 06:59
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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 100 highest latencies:
System rack1slot2.osadl.org (updated Mon May 04, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2610425251,0sleep00-21swapper/019:20:040
2606723930,0sleep20-21swapper/219:19:422
2589823525,0sleep10-21swapper/119:17:451
2604323430,0sleep30-21swapper/319:19:233
26317991616,0cyclictest3524-21snmpd00:33:031
4160,0ktimersoftd/00-21swapper/020:27:100
339960,0migration/35265-21sh00:46:363
339960,0migration/330441-21sh21:33:253
339960,0migration/311011-21munin-node22:57:063
329960,0watchdog/32097-21hwlatdetect00:07:043
29815060,0irq/29-eth0-tx-16218-21munin-node21:07:060
29805060,0irq/28-eth0-rx-3255-21yum23:27:163
29805060,0irq/28-eth0-rx-0-21swapper/323:17:073
29805060,0irq/28-eth0-rx-0-21swapper/319:47:063
263189960,0cyclictest0-21swapper/223:42:452
263189960,0cyclictest0-21swapper/222:11:282
263179960,0cyclictest0-21swapper/121:33:221
259960,0migration/2713-21taskset21:53:152
149960,0migration/05000-21sh00:45:520
149960,0migration/02797-21munin-node20:57:040
149960,0migration/024593-21unixbench-2d23:02:140
149960,0migration/015068-21kthreadcore23:17:070
149960,0migration/01234-21sh21:54:330
339950,0migration/39065-21munin-node19:32:003
339950,0migration/38747-21latency_hist20:16:483
339950,0migration/37097-21irqrtprio00:47:063
339950,0migration/36643-21sh23:50:103
339950,0migration/35646-21kthreadcore20:12:063
339950,0migration/35384-21aten2.4-expect20:36:593
339950,0migration/34009-21fschecks_count00:27:023
339950,0migration/329884-21kthreadcore22:47:093
339950,0migration/329845-21taskset19:45:143
339950,0migration/329510-21switchtime20:27:143
339950,0migration/328853-21taskset22:27:293
339950,0migration/326954-21aten_r1power_fr20:51:583
339950,0migration/325672-21fschecks_time00:02:023
339950,0migration/325672-21fschecks_time00:02:023
339950,0migration/324594-21kthreadcore23:42:053
339950,0migration/323248-21kthreadcore21:47:093
339950,0migration/322820-21taskset20:25:003
339950,0migration/319965-21kthreadcore23:02:053
339950,0migration/318727-21munin-node00:32:153
339950,0migration/315492-21kthreadcore23:37:053
339950,0migration/314124-21sh22:38:113
339950,0migration/311074-21ntp_kernel_err19:52:083
339950,0migration/31032-21munin-node00:22:133
339950,0migration/31032-21kthreadcore20:32:063
329950,0watchdog/324834-21kthreadcore20:47:073
329950,0watchdog/30-21swapper/321:29:473
29815050,0irq/29-eth0-tx-8608-21ssh21:41:502
29815050,0irq/29-eth0-tx-7089-21munin-node22:37:052
29815050,0irq/29-eth0-tx-5201-21python23:47:122
29815050,0irq/29-eth0-tx-3165-21grep22:52:072
29815050,0irq/29-eth0-tx-28394-21munin-node22:12:032
29815050,0irq/29-eth0-tx-26670-21munin-node23:07:052
29815050,0irq/29-eth0-tx-15999-21munin-node20:22:060
29815050,0irq/29-eth0-tx-15833-21munin-node19:37:010
29815050,0irq/29-eth0-tx-14818-21irqcore22:22:042
29815050,0irq/29-eth0-tx-11523-21sendmail_mailqu23:32:102
29815050,0irq/29-eth0-tx-0-21swapper/223:17:022
29815050,0irq/29-eth0-tx-0-21swapper/223:13:292
29815050,0irq/29-eth0-tx-0-21swapper/221:57:442
29815050,0irq/29-eth0-tx-0-21swapper/020:12:010
29805050,0irq/28-eth0-rx-6523-21sed21:22:033
29805050,0irq/28-eth0-rx-28736-21kthreadcore23:07:053
29805050,0irq/28-eth0-rx-25713-21seq00:18:443
29805050,0irq/28-eth0-rx-25536-21kthreadcore23:22:063
29805050,0irq/28-eth0-rx-1441-21ssh21:55:073
29805050,0irq/28-eth0-rx-13480-21kthreadcore21:42:073
29805050,0irq/28-eth0-rx-10283-21ssh22:00:243
29805050,0irq/28-eth0-rx-0-21swapper/323:56:523
29805050,0irq/28-eth0-rx-0-21swapper/323:52:073
29805050,0irq/28-eth0-rx-0-21swapper/323:33:143
29805050,0irq/28-eth0-rx-0-21swapper/322:54:033
29805050,0irq/28-eth0-rx-0-21swapper/322:42:063
29805050,0irq/28-eth0-rx-0-21swapper/322:26:003
29805050,0irq/28-eth0-rx-0-21swapper/322:21:103
29805050,0irq/28-eth0-rx-0-21swapper/322:12:053
29805050,0irq/28-eth0-rx-0-21swapper/322:07:023
29805050,0irq/28-eth0-rx-0-21swapper/321:36:553
27150,0ktimersoftd/20-21swapper/222:50:062
263189955,0cyclictest0-21swapper/223:54:442
263189955,0cyclictest0-21swapper/223:04:462
263189955,0cyclictest0-21swapper/222:18:432
263189950,0cyclictest0-21swapper/221:50:592
263189950,0cyclictest0-21swapper/221:25:172
263189950,0cyclictest0-21swapper/200:26:542
263189950,0cyclictest0-21swapper/200:11:552
263179955,0cyclictest0-21swapper/122:49:501
263179955,0cyclictest0-21swapper/100:41:271
263179950,0cyclictest0-21swapper/123:16:381
263179950,0cyclictest0-21swapper/122:28:231
263179950,0cyclictest0-21swapper/122:19:241
263179950,0cyclictest0-21swapper/122:14:501
263169955,0cyclictest3571-21lldpd00:39:130
259950,0migration/2526-21kthreadcore21:17:092
259950,0migration/24402-21sh00:44:122
259950,0migration/232227-21kthreadcore00:22:082
259950,0migration/220657-21kthreadcore20:22:072
259950,0migration/219608-21aten_r1power_po20:01:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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