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2026-05-08 - 06:29
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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 08, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2730725142,0sleep10-21swapper/119:19:091
2737524939,0sleep20-21swapper/219:19:542
2728723625,0sleep30-21swapper/319:18:553
2062523624,0sleep00-21swapper/019:17:160
27633991010,0cyclictest3571-21lldpd19:34:271
276329976,0cyclictest6952-21munin-node21:22:240
4160,0ktimersoftd/00-21swapper/019:27:350
339960,0migration/39386-21sh21:41:103
339960,0migration/328248-21sh22:08:473
339960,0migration/313967-21fschecks_time00:32:253
339960,0migration/311185-21sh23:13:213
329960,0watchdog/327110-21sh23:05:593
276349966,0cyclictest0-21swapper/200:18:142
276349960,0cyclictest30135-21runrttasks22:27:522
149960,0migration/08299-21switchtime22:52:330
149960,0migration/020495-21kthreadcore19:37:260
149960,0migration/012943-21kthreadcore22:57:250
8305050,0irq/26-0000:00:29744-21load23:42:282
8305050,0irq/26-0000:00:13384-21crond19:57:072
339950,0migration/38752-21kthreadcore22:17:263
339950,0migration/38257-21kernelversion20:37:243
339950,0migration/37405-21munin-node21:22:193
339950,0migration/35572-21missed_timers21:17:273
339950,0migration/34569-21kthreadcore00:07:283
339950,0migration/34569-21kthreadcore00:07:283
339950,0migration/33521-21kthreadcore22:32:253
339950,0migration/33302-21kthreadcore23:27:273
339950,0migration/331744-21taskset20:32:173
339950,0migration/33117-21aten_r1power_en20:57:193
339950,0migration/330724-21kthreadcore20:07:253
339950,0migration/330423-21munin-node00:42:183
339950,0migration/330325-21kthreadcore00:22:263
339950,0migration/329529-21kthreadcore23:07:253
339950,0migration/326271-21kthreadcore22:27:293
339950,0migration/325153-21kthreadcore20:02:253
339950,0migration/32447-21taskset20:52:593
339950,0migration/323937-21taskset20:22:563
339950,0migration/320505-21munin-node00:17:223
339950,0migration/319462-21kthreadcore21:07:253
339950,0migration/316972-21latency_hist19:37:073
339950,0migration/316712-21kthreadcore19:57:263
339950,0migration/316298-21runrttasks22:41:053
339950,0migration/316237-21sh23:54:493
339950,0migration/311487-21irqcore21:42:263
329950,0watchdog/35418-21python19:47:303
329950,0watchdog/327417-21cut20:27:273
329950,0watchdog/325071-21kthreadcore23:22:273
329950,0watchdog/316401-21kthreadcore22:22:273
329950,0watchdog/312516-21sh22:02:193
329950,0watchdog/30-21swapper/321:35:193
29815050,0irq/29-eth0-tx-6788-21munin-node00:47:262
29815050,0irq/29-eth0-tx-5801-21ssh23:31:042
29815050,0irq/29-eth0-tx-4151-21munin-node23:12:282
29815050,0irq/29-eth0-tx-31522-21munin-node19:47:230
29815050,0irq/29-eth0-tx-16973-21munin-node22:42:272
29815050,0irq/29-eth0-tx-14427-21chrt23:35:582
29815050,0irq/29-eth0-tx-0-21swapper/222:18:512
29815050,0irq/29-eth0-tx-0-21swapper/200:23:262
29815050,0irq/29-eth0-tx-0-21swapper/200:12:492
29815050,0irq/29-eth0-tx-0-21swapper/021:07:140
29815050,0irq/29-eth0-tx-0-21swapper/020:32:180
29815050,0irq/29-eth0-tx-0-21swapper/020:07:320
29815050,0irq/29-eth0-tx-0-21swapper/020:02:010
29805050,0irq/28-eth0-rx-25378-21kthreadcore23:42:273
29805050,0irq/28-eth0-rx-17949-21kthreadcore21:27:253
29805050,0irq/28-eth0-rx-16735-21kthreadcore23:37:273
29805050,0irq/28-eth0-rx-0-21swapper/323:57:223
29805050,0irq/28-eth0-rx-0-21swapper/323:50:273
29805050,0irq/28-eth0-rx-0-21swapper/322:45:333
29805050,0irq/28-eth0-rx-0-21swapper/322:12:263
29805050,0irq/28-eth0-rx-0-21swapper/321:52:283
29805050,0irq/28-eth0-rx-0-21swapper/300:50:153
29805050,0irq/28-eth0-rx-0-21swapper/300:37:273
29805050,0irq/28-eth0-rx-0-21swapper/300:02:243
276349955,0cyclictest0-21swapper/221:31:072
276349955,0cyclictest0-21swapper/200:07:302
276349955,0cyclictest0-21swapper/200:07:302
276349950,0cyclictest0-21swapper/221:44:592
276339955,0cyclictest0-21swapper/122:52:201
276339950,0cyclictest0-21swapper/123:48:271
276339950,0cyclictest0-21swapper/123:06:121
276339950,0cyclictest0-21swapper/122:23:571
276339950,0cyclictest0-21swapper/121:30:211
276329955,0cyclictest0-21swapper/021:42:130
276329950,0cyclictest0-21swapper/022:00:020
276329950,0cyclictest0-21swapper/021:33:140
276329950,0cyclictest0-21swapper/000:01:350
27150,0ktimersoftd/20-21swapper/219:27:302
259950,0migration/25501-21kthreadcore23:47:272
259950,0migration/230348-21latency_hist00:42:082
259950,0migration/228761-21kthreadcore00:02:242
259950,0migration/226160-21fschecks_count22:47:232
259950,0migration/225787-21taskset21:48:122
259950,0migration/219287-21kthreadcore19:37:252
249950,0watchdog/228355-21munin-node20:52:192
249950,0watchdog/212849-21munin-node23:17:272
179950,0migration/16775-21kthreadcore20:57:261
179950,0migration/130126-21kthreadcore20:27:271
179950,0migration/129737-21aten_r1power_cu22:12:181
179950,0migration/126685-21if_eth022:47:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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