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2026-08-07 - 04:59
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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 Fri Aug 07, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2845125243,0sleep30-21swapper/319:27:173
2851924936,0sleep00-21swapper/019:28:060
2832924738,0sleep20-21swapper/219:25:522
2830123525,0sleep10-21swapper/119:25:351
339960,0migration/332453-21sh00:32:133
339960,0migration/330596-21sh00:12:183
339960,0migration/329085-21sh23:53:113
339960,0migration/31588-21sh00:51:093
339960,0migration/31530-21hwlatdetect21:24:503
339960,0migration/314348-21sh22:46:263
339960,0migration/311608-21sh23:42:033
329960,0watchdog/320146-21sh23:47:063
29815060,0irq/29-eth0-tx-4057-21munin-node21:04:550
29815060,0irq/29-eth0-tx-29181-21munin-node20:59:490
29815060,0irq/29-eth0-tx-29083-21munin-node20:14:490
29815060,0irq/29-eth0-tx-16291-21munin-node21:34:562
29815060,0irq/29-eth0-tx-14806-21munin-node20:49:550
29815060,0irq/29-eth0-tx-13502-21sensors_fan22:44:582
29805060,0irq/28-eth0-rx-32481-21kernelversion22:39:523
29805060,0irq/28-eth0-rx-23309-21smartctl22:34:493
29805060,0irq/28-eth0-rx-10239-21iostat_ios23:04:533
287149965,0cyclictest7603-21diskmemload23:20:432
287149960,0cyclictest9075-21kthreadcore19:59:522
287149960,0cyclictest7603-21diskmemload21:48:102
287139966,0cyclictest3524-21snmpd21:30:411
149960,0migration/04624-21kthreadcore19:54:520
149960,0migration/03537-21kthreadcore22:59:550
149960,0migration/030246-21kthreadcore21:19:530
149960,0migration/010272-21sh23:23:400
339950,0migration/38670-21kthreadcore22:24:533
339950,0migration/38400-21munin-node19:59:483
339950,0migration/35758-21kthreadcore22:59:553
339950,0migration/34802-21kthreadcore00:54:543
339950,0migration/34001-21kthreadcore00:14:553
339950,0migration/34001-21kthreadcore00:14:553
339950,0migration/33861-21munin-node22:04:493
339950,0migration/332003-21taskset21:40:563
339950,0migration/329617-21kthreadcore23:34:553
339950,0migration/327174-21kthreadcore19:49:523
339950,0migration/325558-21kthreadcore20:54:543
339950,0migration/318721-21munin-node21:54:463
339950,0migration/317125-21kthreadcore20:49:523
339950,0migration/313754-21kthreadcore22:09:533
339950,0migration/311121-21aten_r1power_fr19:39:473
329950,0watchdog/324246-21munin-node22:54:463
329950,0watchdog/31678-21grep00:34:503
329950,0watchdog/313803-21aten2.4-expect22:29:463
329950,0watchdog/310689-21kthreadcore23:59:543
29815050,0irq/29-eth0-tx-8330-21ssh00:36:172
29815050,0irq/29-eth0-tx-819-21python00:50:002
29815050,0irq/29-eth0-tx-30635-21ssh00:12:242
29815050,0irq/29-eth0-tx-29045-21munin-node22:20:002
29815050,0irq/29-eth0-tx-24706-21sed21:54:542
29815050,0irq/29-eth0-tx-18497-21munin-node21:14:490
29815050,0irq/29-eth0-tx-18261-21kthreadcore00:04:532
29815050,0irq/29-eth0-tx-15718-21munin-node22:50:002
29815050,0irq/29-eth0-tx-0-21swapper/223:40:292
29815050,0irq/29-eth0-tx-0-21swapper/221:42:212
29815050,0irq/29-eth0-tx-0-21swapper/221:33:242
29815050,0irq/29-eth0-tx-0-21swapper/020:54:530
29815050,0irq/29-eth0-tx-0-21swapper/019:40:020
29815050,0irq/29-eth0-tx-0-21swapper/019:34:560
29805050,0irq/28-eth0-rx-8981-21if_eth121:29:503
29805050,0irq/28-eth0-rx-6314-21runrttasks21:51:073
29805050,0irq/28-eth0-rx-450-21kthreadcore21:59:553
29805050,0irq/28-eth0-rx-31705-21kthreadcore20:59:503
29805050,0irq/28-eth0-rx-24096-21ssh00:27:423
29805050,0irq/28-eth0-rx-0-21swapper/323:30:333
29805050,0irq/28-eth0-rx-0-21swapper/323:25:163
29805050,0irq/28-eth0-rx-0-21swapper/322:54:333
29805050,0irq/28-eth0-rx-0-21swapper/322:20:403
29805050,0irq/28-eth0-rx-0-21swapper/322:14:533
29805050,0irq/28-eth0-rx-0-21swapper/321:36:223
29805050,0irq/28-eth0-rx-0-21swapper/300:19:553
29805050,0irq/28-eth0-rx-0-21swapper/300:04:533
287149955,0cyclictest0-21swapper/222:12:372
287149954,0cyclictest3524-21snmpd22:39:352
287139955,0cyclictest0-21swapper/121:47:281
287139950,0cyclictest0-21swapper/123:58:471
287139950,0cyclictest0-21swapper/123:25:121
287139950,0cyclictest0-21swapper/123:20:381
287139950,0cyclictest0-21swapper/123:12:361
287139950,0cyclictest0-21swapper/122:53:221
287139950,0cyclictest0-21swapper/100:20:521
259950,0migration/29643-21pmu-power22:04:582
259950,0migration/26960-21kthreadcore19:34:532
259950,0migration/232211-21kthreadcore23:54:522
259950,0migration/225432-21missed_timers23:29:542
259950,0migration/223028-21kthreadcore21:14:522
259950,0migration/219272-21gltestperf00:44:512
259950,0migration/218506-21gltestperf23:09:512
259950,0migration/218320-21sh23:27:192
259950,0migration/216050-21sh00:24:122
259950,0migration/21095-21kthreadcore00:14:542
259950,0migration/21095-21kthreadcore00:14:542
249950,0watchdog/213805-21tail22:29:462
179950,0migration/17620-21sh23:01:211
179950,0migration/13286-21kthreadcore21:24:521
179950,0migration/132437-21fschecks_time00:14:501
179950,0migration/132437-21fschecks_time00:14:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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