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2026-05-05 - 06:51
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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 Tue May 05, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
540027069,0sleep10-21swapper/119:21:081
509623627,0sleep30-21swapper/319:17:343
542523430,0sleep20-21swapper/219:21:212
537423129,0sleep00-21swapper/019:20:470
55459988,0cyclictest0-21swapper/223:19:262
55439960,0cyclictest0-21swapper/021:48:520
339960,0migration/37936-21sh22:28:103
339960,0migration/331463-21sh22:22:423
339960,0migration/311057-21munin-node19:47:103
29805060,0irq/28-eth0-rx-31229-21kthreadcore22:42:103
29805060,0irq/28-eth0-rx-26198-21grep19:57:093
29805060,0irq/28-eth0-rx-2402-21sh23:02:143
29805060,0irq/28-eth0-rx-0-21swapper/323:36:253
149960,0migration/06453-21sh23:25:020
55459955,0cyclictest0-21swapper/223:06:112
55459955,0cyclictest0-21swapper/200:07:502
55459950,0cyclictest0-21swapper/222:59:342
55459950,0cyclictest0-21swapper/222:28:302
55459950,0cyclictest0-21swapper/200:42:402
55449955,0cyclictest0-21swapper/122:07:111
55439955,0cyclictest0-21swapper/023:38:540
55439955,0cyclictest0-21swapper/023:20:090
55439955,0cyclictest0-21swapper/021:39:340
55439955,0cyclictest0-21swapper/000:38:300
55439954,0cyclictest4516-21grep22:47:080
55439950,0cyclictest0-21swapper/000:01:370
339950,0migration/39627-21timerwakeupswit22:47:173
339950,0migration/39416-21kthreadcore22:12:123
339950,0migration/37788-21kthreadcore19:42:113
339950,0migration/36608-21munin-node21:52:103
339950,0migration/36176-21latency_hist20:51:523
339950,0migration/34551-21kthreadcore00:37:133
339950,0migration/33698-21kthreadcore22:07:113
339950,0migration/330977-21taskset20:45:443
339950,0migration/327676-21kthreadcore22:02:113
339950,0migration/322463-21taskset23:17:043
339950,0migration/320676-21kthreadcore19:52:103
339950,0migration/319641-21kthreadcore00:47:113
339950,0migration/319429-21munin-node22:37:103
339950,0migration/318542-21kthreadcore22:17:113
339950,0migration/316619-21taskset23:48:093
339950,0migration/315523-21kthreadcore20:57:103
339950,0migration/315308-21kthreadcore00:07:113
339950,0migration/314265-21munin-node23:12:073
339950,0migration/313653-21kthreadcore22:52:083
339950,0migration/31070-21unixbench_singl23:57:193
329950,0watchdog/38210-21taskset23:43:443
329950,0watchdog/33631-21basename21:12:083
329950,0watchdog/331663-21ssh23:38:003
329950,0watchdog/320419-21aten_r1power_en22:57:043
329950,0watchdog/317216-21munin-node21:22:043
329950,0watchdog/312136-21ssh00:22:373
329950,0watchdog/30-21swapper/322:32:123
29815050,0irq/29-eth0-tx-31246-21munin-node00:37:082
29815050,0irq/29-eth0-tx-22555-21munin-node00:32:122
29815050,0irq/29-eth0-tx-20733-21fschecks_time21:42:062
29815050,0irq/29-eth0-tx-0-21swapper/019:42:040
29805050,0irq/28-eth0-rx-3082-21aten_r1power_en00:02:043
29805050,0irq/28-eth0-rx-27816-21kthreadcore00:32:093
29805050,0irq/28-eth0-rx-26401-21munin-node20:17:143
29805050,0irq/28-eth0-rx-17153-21kthreadcore00:27:123
29805050,0irq/28-eth0-rx-1551-21users19:37:193
29805050,0irq/28-eth0-rx-13784-21port_sshpriv00:42:153
29805050,0irq/28-eth0-rx-13072-21latency_hist20:11:533
29805050,0irq/28-eth0-rx-0-21swapper/323:09:473
29805050,0irq/28-eth0-rx-0-21swapper/321:42:113
29805050,0irq/28-eth0-rx-0-21swapper/321:36:383
29805050,0irq/28-eth0-rx-0-21swapper/321:27:053
29805050,0irq/28-eth0-rx-0-21swapper/300:17:153
249950,0watchdog/215127-21grep22:32:122
179950,0migration/18422-21hwlatdetect23:27:081
179950,0migration/14923-21idleruntime-cro23:06:531
179950,0migration/129836-21kthreadcore20:22:091
179950,0migration/127111-21cpuspeed_turbos22:42:051
179950,0migration/126682-21kthreadcore19:57:091
179950,0migration/125393-21kthreadcore21:02:121
179950,0migration/122730-21kthreadcore20:17:101
179950,0migration/121740-21irqcore00:12:101
179950,0migration/114395-21kthreadcore21:37:111
169950,0watchdog/123426-21grep00:32:051
149950,0migration/05847-21fschecks_count00:22:070
149950,0migration/05439-21kthreadcore21:12:100
149950,0migration/05007-21rt-features22:07:140
149950,0migration/04973-21latency_hist23:06:530
149950,0migration/04685-21kthreadcore21:32:100
149950,0migration/032656-21kthreadcore20:22:100
149950,0migration/032085-21pmu-power21:27:140
149950,0migration/030530-21latency22:22:110
149950,0migration/025998-21latency19:32:120
149950,0migration/021346-21munin-node20:17:070
149950,0migration/020707-21aten_r1power_po21:02:060
149950,0migration/017872-21kthreadcore23:32:100
149950,0migration/015862-21sh00:46:420
149950,0migration/014100-21aten_r1power_vo00:27:070
149950,0migration/014096-21kthreadcore19:47:110
149950,0migration/012713-21kthreadcore23:47:100
55459944,0cyclictest0-21swapper/223:58:502
55459944,0cyclictest0-21swapper/223:42:272
55459944,0cyclictest0-21swapper/222:04:322
55459943,0cyclictest6278-21awk21:52:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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