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2026-03-14 - 07:45
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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 Sat Mar 14, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
920724735,0sleep20-21swapper/219:17:112
886323625,0sleep10-21swapper/119:13:101
912323526,0sleep30-21swapper/319:16:123
886723522,0sleep00-21swapper/019:13:130
93109977,0cyclictest31149-21sadc20:17:342
93109966,0cyclictest20638-21diskmemload23:43:352
339960,0migration/3620-21kthreadcore20:17:523
339960,0migration/321951-21aten_r1power_cu23:47:463
149960,0migration/04249-21kthreadcore23:17:510
149960,0migration/031498-21sh21:41:100
149960,0migration/016399-21sh00:19:310
149960,0migration/010291-21sh22:07:120
149960,0migration/010032-21kthreadcore23:57:520
93109955,0cyclictest0-21swapper/200:05:022
93109950,0cyclictest0-21swapper/223:50:222
93109950,0cyclictest0-21swapper/222:56:272
93109950,0cyclictest0-21swapper/200:40:492
93099955,0cyclictest20638-21diskmemload22:21:141
93099955,0cyclictest0-21swapper/123:02:421
93099955,0cyclictest0-21swapper/100:02:371
93099954,0cyclictest9837-21grep00:17:491
93099950,0cyclictest0-21swapper/121:42:081
93099950,0cyclictest0-21swapper/100:45:581
93099950,0cyclictest0-21swapper/100:30:221
93089955,0cyclictest0-21swapper/023:13:130
93089950,0cyclictest0-21swapper/022:56:310
8305050,0irq/26-0000:00:2396-21crond20:42:342
8305050,0irq/26-0000:00:16928-21proc_pri22:07:552
8305050,0irq/26-0000:00:16928-21proc_pri22:07:552
339950,0migration/39729-21taskset20:02:363
339950,0migration/39677-21munin-node21:47:503
339950,0migration/39194-21runrttasks22:04:103
339950,0migration/36676-21diskmemload22:42:463
339950,0migration/36109-21aten_r1power_po21:27:463
339950,0migration/35999-21taskset19:37:343
339950,0migration/35889-21kthreadcore22:57:533
339950,0migration/34115-21munin-node22:37:553
339950,0migration/332670-21kthreadcore22:17:523
339950,0migration/330967-21irqcore21:22:503
339950,0migration/328770-21sh21:21:203
339950,0migration/327559-21latency22:32:543
339950,0migration/325182-21idleruntime00:07:503
339950,0migration/325072-21munin-node19:27:483
339950,0migration/318278-21munin-node21:52:513
339950,0migration/318278-21munin-node21:52:513
339950,0migration/316071-21fschecks_count00:02:483
339950,0migration/313755-21fschecks_count23:42:493
339950,0migration/313104-21kthreadcore19:17:513
329950,0watchdog/35568-21taskset19:35:093
329950,0watchdog/33904-21iostat20:42:503
329950,0watchdog/318470-21ssh00:38:543
329950,0watchdog/311865-21perl23:22:463
329950,0watchdog/30-21swapper/323:37:463
329950,0watchdog/30-21swapper/319:22:453
29815050,0irq/29-eth0-tx-9526-21munin-node19:17:540
29815050,0irq/29-eth0-tx-4805-21fschecks_count22:22:492
29815050,0irq/29-eth0-tx-3524-21snmpd20:07:550
29815050,0irq/29-eth0-tx-17413-21munin-node23:07:522
29815050,0irq/29-eth0-tx-17222-21processes23:22:542
29815050,0irq/29-eth0-tx-17179-21munin-node21:52:552
29815050,0irq/29-eth0-tx-17179-21munin-node21:52:552
29815050,0irq/29-eth0-tx-11408-21kthreadcore00:17:532
29815050,0irq/29-eth0-tx-0-21swapper/223:20:252
29815050,0irq/29-eth0-tx-0-21swapper/222:30:182
29815050,0irq/29-eth0-tx-0-21swapper/221:57:472
29815050,0irq/29-eth0-tx-0-21swapper/221:37:532
29815050,0irq/29-eth0-tx-0-21swapper/200:42:542
29815050,0irq/29-eth0-tx-0-21swapper/200:08:102
29815050,0irq/29-eth0-tx-0-21swapper/021:13:000
29815050,0irq/29-eth0-tx-0-21swapper/021:02:560
29815050,0irq/29-eth0-tx-0-21swapper/020:46:590
29815050,0irq/29-eth0-tx-0-21swapper/019:42:560
29805050,0irq/28-eth0-rx-4301-21sh22:22:403
29805050,0irq/28-eth0-rx-26643-21taskset00:27:503
29805050,0irq/28-eth0-rx-16807-21kthreadcore22:47:523
29805050,0irq/28-eth0-rx-16419-21kthreadcore21:32:523
29805050,0irq/28-eth0-rx-14282-21tr22:07:523
29805050,0irq/28-eth0-rx-14282-21tr22:07:523
29805050,0irq/28-eth0-rx-0-21swapper/323:32:513
29805050,0irq/28-eth0-rx-0-21swapper/323:17:593
29805050,0irq/28-eth0-rx-0-21swapper/323:12:473
29805050,0irq/28-eth0-rx-0-21swapper/323:08:233
29805050,0irq/28-eth0-rx-0-21swapper/323:02:523
29805050,0irq/28-eth0-rx-0-21swapper/322:52:543
29805050,0irq/28-eth0-rx-0-21swapper/322:32:033
29805050,0irq/28-eth0-rx-0-21swapper/322:12:453
29805050,0irq/28-eth0-rx-0-21swapper/321:59:493
29805050,0irq/28-eth0-rx-0-21swapper/321:42:533
29805050,0irq/28-eth0-rx-0-21swapper/300:32:533
29805050,0irq/28-eth0-rx-0-21swapper/300:24:353
29805050,0irq/28-eth0-rx-0-21swapper/300:20:003
259950,0migration/29081-21cpuspeed_turbos23:02:472
259950,0migration/27552-21gltestperf22:42:492
259950,0migration/25814-21sh23:55:302
259950,0migration/2474-21kthreadcore23:32:542
259950,0migration/24653-21kthreadcore22:57:532
259950,0migration/223044-21kthreadcore21:17:522
259950,0migration/218677-21fschecks_time00:22:462
259950,0migration/217627-21kthreadcore21:32:522
259950,0migration/21103-21kthreadcore22:37:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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