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2026-08-08 - 02:11
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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 50 highest latencies:
System rack1slot2.osadl.org (updated Sat Aug 08, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
780424938,0sleep00-21swapper/019:29:000
773224838,0sleep30-21swapper/319:28:073
754224132,0sleep10-21swapper/119:25:571
760223727,0sleep20-21swapper/219:26:382
7932991818,0cyclictest3524-21snmpd00:51:001
7932991212,0cyclictest3524-21snmpd19:29:531
8305060,0irq/26-0000:00:30982-21munin-run23:29:402
79319960,0cyclictest0-21swapper/000:15:080
339960,0migration/39650-21sh00:10:583
339960,0migration/329483-21sh21:52:413
339960,0migration/328003-21sh23:06:233
339960,0migration/32121-21sh00:09:203
29815060,0irq/29-eth0-tx-0-21swapper/021:14:520
29805060,0irq/28-eth0-rx-31820-21irqcore21:54:573
29805060,0irq/28-eth0-rx-19687-21unixbench_singl00:35:063
249960,0watchdog/24421-21munin-node21:39:592
149960,0migration/04488-21kthreadcore20:09:570
149960,0migration/030874-21sh22:11:080
149960,0migration/026512-21cpuspeed_turbos20:04:530
149960,0migration/026481-21sh00:20:130
149960,0migration/024821-21sh00:00:510
149960,0migration/023315-21fschecks_time19:39:520
8305050,0irq/26-0000:00:0-21swapper/319:44:533
79339955,0cyclictest0-21swapper/223:43:212
79339955,0cyclictest0-21swapper/223:17:022
79339955,0cyclictest0-21swapper/222:01:592
79339955,0cyclictest0-21swapper/200:15:402
79339954,0cyclictest15789-21grep19:34:542
79339950,0cyclictest0-21swapper/222:27:502
79339950,0cyclictest0-21swapper/200:25:552
79339950,0cyclictest0-21swapper/200:03:322
79329955,0cyclictest0-21swapper/123:50:101
79329955,0cyclictest0-21swapper/121:24:391
79329955,0cyclictest0-21swapper/100:42:211
79329950,0cyclictest0-21swapper/122:12:061
79319955,0cyclictest19285-21diskmemload22:59:280
79319955,0cyclictest0-21swapper/023:55:260
79319955,0cyclictest0-21swapper/000:11:210
79319950,0cyclictest0-21swapper/023:31:280
79319950,0cyclictest0-21swapper/022:15:000
79319950,0cyclictest0-21swapper/000:49:490
339950,0migration/38798-21kthreadcore21:59:573
339950,0migration/37089-21munin-node20:10:003
339950,0migration/35106-21fschecks_count00:29:533
339950,0migration/3368-21kthreadcore20:29:573
339950,0migration/331838-21taskset23:46:523
339950,0migration/32449-21taskset21:35:253
339950,0migration/324447-21munin-node22:09:533
339950,0migration/319999-21taskset23:03:023
339950,0migration/318860-21latency_hist19:59:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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