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2026-04-29 - 01:20
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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 Wed Apr 29, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3004226968,0sleep00-21swapper/019:16:400
329125040,0sleep30-21swapper/319:19:593
335723829,0sleep20-21swapper/219:20:422
303023425,0sleep10-21swapper/119:17:051
3509991414,0cyclictest3524-21snmpd23:26:131
35089999,0cyclictest10788-21sensors00:21:470
35089988,0cyclictest3524-21snmpd20:55:410
8305060,0irq/26-0000:00:7282-21awk19:46:232
35099960,0cyclictest0-21swapper/123:31:501
35099960,0cyclictest0-21swapper/123:01:531
35099960,0cyclictest0-21swapper/100:19:271
35089965,0cyclictest16538-21ps20:36:400
339960,0migration/33270-21sh23:04:563
339960,0migration/329634-21sh00:35:223
339960,0migration/328869-21sh23:18:413
339960,0migration/326863-21sh00:13:363
339960,0migration/321966-21sh23:32:173
339960,0migration/316796-21sh23:50:353
339960,0migration/312353-21sh23:10:573
29805060,0irq/28-eth0-rx-23787-21grep22:56:413
29805060,0irq/28-eth0-rx-14100-21sed23:11:403
149960,0migration/08876-21gltestperf20:31:370
149960,0migration/031180-21sh21:27:300
149960,0migration/030381-21sh22:23:030
149960,0migration/022905-21sh00:49:260
149960,0migration/010860-21sh00:06:260
8305050,0irq/26-0000:00:25233-21awk22:41:232
35109955,0cyclictest10666-21sensors20:51:462
35099955,0cyclictest0-21swapper/122:16:001
35099955,0cyclictest0-21swapper/122:05:451
35099950,0cyclictest0-21swapper/123:45:331
35099950,0cyclictest0-21swapper/122:58:341
35099950,0cyclictest0-21swapper/121:58:491
35099950,0cyclictest0-21swapper/100:44:021
35099950,0cyclictest0-21swapper/100:15:211
35099950,0cyclictest0-21swapper/100:07:091
35089955,0cyclictest28793-21kthreadcore23:56:420
35089955,0cyclictest0-21swapper/023:17:170
35089955,0cyclictest0-21swapper/021:54:490
35089955,0cyclictest0-21swapper/000:31:040
35089950,0cyclictest0-21swapper/021:35:540
339950,0migration/37634-21taskset20:30:413
339950,0migration/35147-21irqcore21:51:413
339950,0migration/332368-21munin-node23:41:353
339950,0migration/327308-21irqcore21:06:413
339950,0migration/325114-21taskset19:36:053
339950,0migration/324516-21fschecks_time23:36:393
339950,0migration/317637-21kthreadcore21:56:413
339950,0migration/315003-21kthreadcore21:36:433
339950,0migration/314539-21timerwakeupswit21:16:503
339950,0migration/314116-21if_err_eth000:26:403
339950,0migration/312763-21kthreadcore00:06:413
329950,0watchdog/37497-21hwlatdetect23:26:393
329950,0watchdog/34411-21perl19:21:383
329950,0watchdog/325563-21chrt21:03:063
329950,0watchdog/318989-21kernelversion23:51:433
329950,0watchdog/312525-21kthreadcore22:51:423
329950,0watchdog/30-21swapper/323:21:473
329950,0watchdog/30-21swapper/322:16:423
329950,0watchdog/30-21swapper/319:56:343
29815050,0irq/29-eth0-tx-3729-21munin-node19:21:410
29815050,0irq/29-eth0-tx-30149-21munin-node23:21:422
29815050,0irq/29-eth0-tx-29220-21munin-node20:01:370
29815050,0irq/29-eth0-tx-28127-21ssh23:56:422
29815050,0irq/29-eth0-tx-18609-21munin-node21:41:442
29815050,0irq/29-eth0-tx-0-21swapper/223:45:062
29815050,0irq/29-eth0-tx-0-21swapper/223:33:562
29815050,0irq/29-eth0-tx-0-21swapper/223:16:112
29815050,0irq/29-eth0-tx-0-21swapper/222:49:502
29815050,0irq/29-eth0-tx-0-21swapper/222:34:022
29815050,0irq/29-eth0-tx-0-21swapper/222:30:152
29815050,0irq/29-eth0-tx-0-21swapper/200:33:162
29815050,0irq/29-eth0-tx-0-21swapper/200:21:422
29815050,0irq/29-eth0-tx-0-21swapper/200:16:452
29815050,0irq/29-eth0-tx-0-21swapper/200:01:562
29815050,0irq/29-eth0-tx-0-21swapper/021:21:490
29815050,0irq/29-eth0-tx-0-21swapper/020:26:480
29815050,0irq/29-eth0-tx-0-21swapper/020:07:570
29815050,0irq/29-eth0-tx-0-21swapper/019:40:280
29815050,0irq/29-eth0-tx-0-21swapper/019:35:260
29805050,0irq/28-eth0-rx-8197-21ssh22:31:263
29805050,0irq/28-eth0-rx-3690-21grep00:01:403
29805050,0irq/28-eth0-rx-30900-21kthreadcore21:46:413
29805050,0irq/28-eth0-rx-29208-21cut23:56:423
29805050,0irq/28-eth0-rx-25663-21runrttasks19:36:373
29805050,0irq/28-eth0-rx-24943-21kthreadcore22:01:433
29805050,0irq/28-eth0-rx-21626-21ssh00:46:493
29805050,0irq/28-eth0-rx-21329-21grep21:41:423
29805050,0irq/28-eth0-rx-0-21swapper/322:44:203
29805050,0irq/28-eth0-rx-0-21swapper/322:21:323
29805050,0irq/28-eth0-rx-0-21swapper/322:12:403
29805050,0irq/28-eth0-rx-0-21swapper/321:32:373
29805050,0irq/28-eth0-rx-0-21swapper/321:29:123
29805050,0irq/28-eth0-rx-0-21swapper/321:21:433
29805050,0irq/28-eth0-rx-0-21swapper/320:51:363
29805050,0irq/28-eth0-rx-0-21swapper/319:46:363
29805050,0irq/28-eth0-rx-0-21swapper/319:26:383
27150,0ktimersoftd/20-21swapper/222:09:302
259950,0migration/29906-21kthreadcore19:46:422
259950,0migration/26657-21kthreadcore20:06:412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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