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2025-05-02 - 12:42
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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 May 02, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2534824028,0sleep30-21swapper/318:28:573
2535723728,0sleep20-21swapper/218:29:042
2539923524,0sleep00-21swapper/018:29:340
2551222925,0sleep10-21swapper/118:30:511
329980,0watchdog/317283-21sh21:52:383
329970,0watchdog/320282-21kthreadcore22:12:383
329970,0watchdog/30-21swapper/322:37:423
329970,0watchdog/30-21swapper/322:36:423
29925070,0irq/32-eth0-rx-0-21swapper/323:46:573
29925070,0irq/32-eth0-rx-0-21swapper/321:49:013
257059970,0cyclictest0-21swapper/222:19:452
257049977,0cyclictest2546-21nvme18:57:291
339960,0migration/38253-21sh23:38:073
339960,0migration/324410-21kthreadcore21:37:373
339960,0migration/322170-21idleruntime-cro18:52:183
339960,0migration/310992-21taskset22:44:323
339960,0migration/310738-21kthreadcore22:07:363
329960,0watchdog/30-21swapper/323:53:423
329960,0watchdog/30-21swapper/323:34:143
329960,0watchdog/30-21swapper/323:23:423
329960,0watchdog/30-21swapper/323:18:223
329960,0watchdog/30-21swapper/323:07:263
329960,0watchdog/30-21swapper/322:57:263
329960,0watchdog/30-21swapper/321:59:263
329960,0watchdog/30-21swapper/321:42:503
329960,0watchdog/30-21swapper/321:24:023
329960,0watchdog/30-21swapper/321:19:143
329960,0watchdog/30-21swapper/321:13:143
329960,0watchdog/30-21swapper/321:05:183
329960,0watchdog/30-21swapper/320:59:223
329960,0watchdog/30-21swapper/320:50:063
329960,0watchdog/30-21swapper/320:42:423
329960,0watchdog/30-21swapper/320:37:423
329960,0watchdog/30-21swapper/320:12:423
329960,0watchdog/30-21swapper/319:57:303
329960,0watchdog/30-21swapper/319:52:343
329960,0watchdog/30-21swapper/319:38:023
329960,0watchdog/30-21swapper/319:07:393
329960,0watchdog/30-21swapper/318:54:553
29935060,0irq/33-eth0-tx-19162-21munin-node19:57:410
29925060,0irq/32-eth0-rx-8053-40yum-updatesd-he21:07:443
29925060,0irq/32-eth0-rx-24245-21munin-node20:22:403
29925060,0irq/32-eth0-rx-22382-21turbostat.cron19:37:173
29925060,0irq/32-eth0-rx-21936-21hostname22:52:353
29925060,0irq/32-eth0-rx-18571-21open_inodes21:32:383
29925060,0irq/32-eth0-rx-15046-21tr22:27:383
29925060,0irq/32-eth0-rx-0-21swapper/323:30:023
29925060,0irq/32-eth0-rx-0-21swapper/323:12:343
29925060,0irq/32-eth0-rx-0-21swapper/323:02:353
29925060,0irq/32-eth0-rx-0-21swapper/322:51:303
29925060,0irq/32-eth0-rx-0-21swapper/322:05:033
29925060,0irq/32-eth0-rx-0-21swapper/321:29:103
29925060,0irq/32-eth0-rx-0-21swapper/320:52:373
27160,0ktimersoftd/20-21swapper/221:41:492
257059960,0cyclictest0-21swapper/221:43:302
257059960,0cyclictest0-21swapper/219:02:502
257039960,0cyclictest0-21swapper/022:02:440
19160,0ktimersoftd/10-21swapper/121:41:491
149960,0migration/029352-21pmu-power21:57:390
149960,0migration/02605-21gltestperf21:07:340
149960,0migration/022547-21sh21:56:230
149960,0migration/019782-21kthreadcore23:27:370
8315050,0irq/26-0000:00:0-21swapper/223:57:182
339950,0migration/39930-21kthreadcore18:42:363
339950,0migration/331906-21munin-node18:32:403
339950,0migration/318588-21cpuspeed_turbos23:47:313
339950,0migration/31376-21cpu20:07:363
339950,0migration/310770-21kthreadcore19:27:393
329950,0watchdog/324252-21cut19:12:383
329950,0watchdog/30-21swapper/322:22:263
329950,0watchdog/30-21swapper/320:28:343
329950,0watchdog/30-21swapper/320:18:343
329950,0watchdog/30-21swapper/320:02:343
329950,0watchdog/30-21swapper/319:47:183
329950,0watchdog/30-21swapper/319:42:343
329950,0watchdog/30-21swapper/319:22:463
329950,0watchdog/30-21swapper/319:17:263
329950,0watchdog/30-21swapper/319:02:393
329950,0watchdog/30-21swapper/318:38:073
29935050,0irq/33-eth0-tx-653-21munin-node18:37:370
29935050,0irq/33-eth0-tx-22385-21munin-node18:52:320
29935050,0irq/33-eth0-tx-19308-21diskstats21:17:322
29935050,0irq/33-eth0-tx-13408-21if_eth1.222:47:352
29935050,0irq/33-eth0-tx-10941-21kthreadcore21:47:392
29935050,0irq/33-eth0-tx-0-21swapper/223:00:062
29935050,0irq/33-eth0-tx-0-21swapper/222:32:372
29935050,0irq/33-eth0-tx-0-21swapper/222:22:372
29935050,0irq/33-eth0-tx-0-21swapper/222:07:482
29925050,0irq/32-eth0-rx-0-21swapper/323:58:403
29925050,0irq/32-eth0-rx-0-21swapper/322:17:343
29925050,0irq/32-eth0-rx-0-21swapper/320:32:353
29925050,0irq/32-eth0-rx-0-21swapper/318:57:313
257059955,0cyclictest0-21swapper/223:46:282
257059955,0cyclictest0-21swapper/223:39:032
257059955,0cyclictest0-21swapper/223:16:122
257059955,0cyclictest0-21swapper/221:34:402
257059950,0cyclictest0-21swapper/223:05:192
257049955,0cyclictest2546-21nvme21:22:321
257049955,0cyclictest2546-21nvme21:06:301
257049955,0cyclictest0-21swapper/120:52:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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