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2026-05-03 - 05:15
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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 Sun May 03, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1941623728,0sleep10-21swapper/119:19:251
1936823525,0sleep20-21swapper/219:18:502
1933123322,0sleep00-21swapper/019:18:280
1269623127,0sleep30-21swapper/319:16:473
19685991515,0cyclictest3524-21snmpd20:31:280
8305060,0irq/26-0000:00:26665-21proc_pri00:22:052
339960,0migration/331812-21sh23:48:343
339960,0migration/331734-21munin-node22:16:593
339960,0migration/329182-21sh22:13:343
339960,0migration/328589-21irqcore20:11:593
339960,0migration/327581-21sh00:23:183
339960,0migration/323716-21munin-node00:41:593
339960,0migration/31707-21sh22:54:433
29815060,0irq/29-eth0-tx-12851-21munin-node20:01:590
29805060,0irq/28-eth0-rx-3052-21yum23:12:093
149960,0migration/05948-21sh21:22:500
149960,0migration/012211-21sh00:32:250
149960,0migration/010655-21sh23:00:110
8305050,0irq/26-0000:00:16342-21munin-run20:26:433
8305050,0irq/26-0000:00:0-21swapper/223:21:432
339950,0migration/37952-21munin-node22:21:583
339950,0migration/37068-21kthreadcore21:42:013
339950,0migration/35286-21cpuspeed_turbos23:16:553
339950,0migration/34953-21kthreadcore00:12:013
339950,0migration/332381-21munin-node00:46:583
339950,0migration/331200-21kthreadcore00:07:023
339950,0migration/331124-21munin-node23:31:553
339950,0migration/329167-21aten_r1power_en00:26:553
339950,0migration/327639-21munin-node19:26:563
339950,0migration/325885-21kthreadcore19:47:003
339950,0migration/325190-21gltestperf22:31:583
339950,0migration/322656-21latency21:12:023
339950,0migration/320228-21kthreadcore20:26:593
339950,0migration/317602-21munin-node21:31:563
339950,0migration/313604-21kthreadcore23:02:003
329950,0watchdog/37260-21sh23:36:463
329950,0watchdog/332439-21if_eth121:21:583
329950,0watchdog/322185-21grep00:02:033
329950,0watchdog/30-21swapper/323:22:023
329950,0watchdog/30-21swapper/321:27:023
29815050,0irq/29-eth0-tx-29966-21iostat_ios23:11:582
29815050,0irq/29-eth0-tx-29127-21munin-node00:27:052
29815050,0irq/29-eth0-tx-26687-21ssh00:06:432
29815050,0irq/29-eth0-tx-25188-21kthreadcore22:12:012
29815050,0irq/29-eth0-tx-25051-21cat00:42:022
29815050,0irq/29-eth0-tx-20352-21kthreadcore22:47:012
29815050,0irq/29-eth0-tx-18254-21munin-node00:01:582
29815050,0irq/29-eth0-tx-16350-21munin-node19:42:040
29815050,0irq/29-eth0-tx-0-21swapper/223:58:182
29815050,0irq/29-eth0-tx-0-21swapper/223:46:552
29815050,0irq/29-eth0-tx-0-21swapper/222:22:432
29815050,0irq/29-eth0-tx-0-21swapper/222:20:482
29815050,0irq/29-eth0-tx-0-21swapper/222:05:032
29815050,0irq/29-eth0-tx-0-21swapper/200:51:052
29815050,0irq/29-eth0-tx-0-21swapper/200:21:132
29815050,0irq/29-eth0-tx-0-21swapper/200:14:482
29815050,0irq/29-eth0-tx-0-21swapper/020:16:250
29805050,0irq/28-eth0-rx-5921-21kthreadcore21:02:013
29805050,0irq/28-eth0-rx-3722-21gltestperf22:56:573
29805050,0irq/28-eth0-rx-27039-21ssh21:54:013
29805050,0irq/28-eth0-rx-24855-21cut21:16:573
29805050,0irq/28-eth0-rx-22570-21cpuspeed_turbos23:26:553
29805050,0irq/28-eth0-rx-20560-21entropy23:06:573
29805050,0irq/28-eth0-rx-18467-21cut22:07:013
29805050,0irq/28-eth0-rx-17607-21kthreadcore00:37:023
29805050,0irq/28-eth0-rx-14716-21kthreadcore21:47:033
29805050,0irq/28-eth0-rx-0-21swapper/323:44:233
29805050,0irq/28-eth0-rx-0-21swapper/322:36:563
29805050,0irq/28-eth0-rx-0-21swapper/321:59:533
29805050,0irq/28-eth0-rx-0-21swapper/321:36:573
29805050,0irq/28-eth0-rx-0-21swapper/320:09:033
29805050,0irq/28-eth0-rx-0-21swapper/300:31:443
29805050,0irq/28-eth0-rx-0-21swapper/300:17:013
259950,0migration/27106-21timerwakeupswit22:37:082
259950,0migration/230992-21kthreadcore22:52:012
259950,0migration/223526-21kthreadcore20:07:012
259950,0migration/219073-21kthreadcore21:12:012
259950,0migration/217908-21timerandwakeup23:02:072
249950,0watchdog/23034-21cut20:36:582
249950,0watchdog/220229-21kthreadcore22:27:022
249950,0watchdog/212678-21grep21:27:022
196879955,0cyclictest0-21swapper/223:26:572
196879950,0cyclictest0-21swapper/222:07:012
196869955,0cyclictest0-21swapper/122:43:161
196869955,0cyclictest0-21swapper/122:16:091
196869950,0cyclictest0-21swapper/122:52:341
196869950,0cyclictest0-21swapper/122:33:581
196869950,0cyclictest0-21swapper/100:43:241
179950,0migration/13403-21fschecks_count22:56:571
179950,0migration/128296-21munin-node19:26:591
169950,0watchdog/121471-21cut21:12:021
149950,0migration/0806-21taskset22:52:160
149950,0migration/07689-21sh23:52:170
149950,0migration/07520-21fschecks_count22:21:560
149950,0migration/03592-21munin-node21:01:590
149950,0migration/030274-21kthreadcore21:57:000
149950,0migration/030125-21sh22:16:110
149950,0migration/028892-21kthreadcore19:27:000
149950,0migration/026289-21kthreadcore20:31:590
149950,0migration/024243-21kthreadcore23:27:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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