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2025-09-17 - 17:01
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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 Sep 17, 2025 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
332423927,0sleep20-21swapper/206:23:402
325323627,0sleep30-21swapper/306:22:533
308823626,0sleep10-21swapper/106:21:031
298723523,0sleep00-21swapper/006:19:540
329970,0watchdog/30-21swapper/310:52:243
329970,0watchdog/30-21swapper/309:58:323
29925070,0irq/32-eth0-rx-32296-21grep07:49:133
29925070,0irq/32-eth0-rx-20696-21cut10:04:103
34189965,0cyclictest22447-21cpuspeed_turbos11:24:042
34189960,0cyclictest0-21swapper/210:12:482
339960,0migration/37137-21idleruntime-cro06:48:523
339960,0migration/34313-21sh09:50:143
339960,0migration/326397-21gltestperf10:29:073
339960,0migration/316952-21sh10:23:543
329960,0watchdog/30-21swapper/311:51:203
329960,0watchdog/30-21swapper/311:33:283
329960,0watchdog/30-21swapper/311:27:043
329960,0watchdog/30-21swapper/311:20:483
329960,0watchdog/30-21swapper/311:14:323
329960,0watchdog/30-21swapper/310:59:523
329960,0watchdog/30-21swapper/310:56:163
329960,0watchdog/30-21swapper/310:34:123
329960,0watchdog/30-21swapper/310:02:003
329960,0watchdog/30-21swapper/309:44:203
329960,0watchdog/30-21swapper/309:43:043
329960,0watchdog/30-21swapper/309:29:563
329960,0watchdog/30-21swapper/309:16:043
329960,0watchdog/30-21swapper/309:06:163
329960,0watchdog/30-21swapper/309:00:123
329960,0watchdog/30-21swapper/308:49:163
329960,0watchdog/30-21swapper/308:46:123
329960,0watchdog/30-21swapper/308:29:163
329960,0watchdog/30-21swapper/308:25:283
329960,0watchdog/30-21swapper/308:04:123
329960,0watchdog/30-21swapper/307:46:123
329960,0watchdog/30-21swapper/306:53:483
329960,0watchdog/30-21swapper/306:24:133
29935060,0irq/33-eth0-tx-32444-21munin-node06:44:070
29925060,0irq/32-eth0-rx-0-21swapper/311:43:593
29925060,0irq/32-eth0-rx-0-21swapper/311:39:433
29925060,0irq/32-eth0-rx-0-21swapper/311:35:363
29925060,0irq/32-eth0-rx-0-21swapper/311:10:343
29925060,0irq/32-eth0-rx-0-21swapper/311:03:513
29925060,0irq/32-eth0-rx-0-21swapper/310:45:033
29925060,0irq/32-eth0-rx-0-21swapper/310:39:003
29925060,0irq/32-eth0-rx-0-21swapper/310:20:553
29925060,0irq/32-eth0-rx-0-21swapper/309:34:183
29925060,0irq/32-eth0-rx-0-21swapper/308:34:453
29925060,0irq/32-eth0-rx-0-21swapper/308:02:473
149960,0migration/010994-21idleruntime-cro09:18:520
8315050,0irq/26-0000:00:25193-21sleep10:28:512
34189955,0cyclictest0-21swapper/210:52:042
34189955,0cyclictest0-21swapper/208:42:472
34189955,0cyclictest0-21swapper/208:35:322
34189955,0cyclictest0-21swapper/206:39:202
34189950,0cyclictest0-21swapper/211:29:262
34189950,0cyclictest0-21swapper/208:58:142
34179954,0cyclictest18272-21sadc08:03:521
34179950,0cyclictest0-21swapper/109:49:061
34169955,0cyclictest0-21swapper/009:25:080
34169955,0cyclictest0-21swapper/008:59:070
34169955,0cyclictest0-21swapper/008:44:090
34169950,0cyclictest0-21swapper/010:46:480
339950,0migration/326933-21munin-node07:24:113
339950,0migration/321903-21aten_r1power_fr06:59:053
339950,0migration/31576-21munin-node08:14:093
339950,0migration/314942-21kthreadcore09:19:113
329950,0watchdog/35277-21awk07:54:123
329950,0watchdog/324561-21diskstats10:09:083
329950,0watchdog/30-21swapper/309:23:523
329950,0watchdog/30-21swapper/308:53:563
329950,0watchdog/30-21swapper/308:39:003
329950,0watchdog/30-21swapper/308:19:003
329950,0watchdog/30-21swapper/308:12:043
329950,0watchdog/30-21swapper/307:39:123
329950,0watchdog/30-21swapper/307:34:043
329950,0watchdog/30-21swapper/307:28:563
329950,0watchdog/30-21swapper/307:20:323
329950,0watchdog/30-21swapper/307:09:083
329950,0watchdog/30-21swapper/307:03:523
329950,0watchdog/30-21swapper/306:54:163
329950,0watchdog/30-21swapper/306:39:133
329950,0watchdog/30-21swapper/306:34:333
329950,0watchdog/30-21swapper/306:30:093
29935050,0irq/33-eth0-tx-32746-21ntp_states09:09:132
29935050,0irq/33-eth0-tx-32709-21munin-node11:49:122
29935050,0irq/33-eth0-tx-29640-21ssh09:49:042
29935050,0irq/33-eth0-tx-21812-21munin-node06:59:060
29935050,0irq/33-eth0-tx-12868-21kthreadcore08:59:132
29935050,0irq/33-eth0-tx-11145-21munin-node07:14:180
29935050,0irq/33-eth0-tx-0-21swapper/211:13:432
29935050,0irq/33-eth0-tx-0-21swapper/209:14:112
29935050,0irq/33-eth0-tx-0-21swapper/208:53:392
29935050,0irq/33-eth0-tx-0-21swapper/208:30:482
29925050,0irq/32-eth0-rx-15371-21kthreadcore07:14:123
29925050,0irq/32-eth0-rx-0-21swapper/310:13:583
29925050,0irq/32-eth0-rx-0-21swapper/309:09:143
259950,0migration/228914-21kthreadcore10:29:112
259950,0migration/225757-21taskset09:06:582
259950,0migration/219591-21latency_hist09:23:522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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