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2026-06-04 - 16:45
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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 Thu Jun 04, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
681324839,0sleep30-21swapper/307:24:173
648724839,0sleep20-21swapper/207:20:362
675822925,0sleep00-21swapper/007:23:420
677722824,0sleep10-21swapper/107:23:551
339970,0migration/326071-21sh10:24:183
69079960,0cyclictest21459-21ssh10:57:392
68959963,0cyclictest3703-21kworker/0:111:23:110
339960,0migration/33191-21sh09:33:403
339960,0migration/330260-21sh11:03:073
339960,0migration/328126-21munin-node11:39:383
339960,0migration/325819-21sh12:50:453
339960,0migration/323740-21sa110:04:243
29805060,0irq/28-eth0-rx-22157-21cut08:39:403
29805060,0irq/28-eth0-rx-16784-21ssh10:17:353
29805060,0irq/28-eth0-rx-0-21swapper/311:29:393
149960,0migration/07299-21sh10:10:260
149960,0migration/025978-21taskset10:24:030
149960,0migration/022203-21sh12:13:240
8305050,0irq/26-0000:00:17623-21date10:19:242
69079955,0cyclictest0-21swapper/212:41:042
69079955,0cyclictest0-21swapper/211:06:482
69079955,0cyclictest0-21swapper/209:42:362
69079955,0cyclictest0-21swapper/209:31:442
69079954,0cyclictest3524-21snmpd09:29:172
69079954,0cyclictest24018-21awk12:14:392
69079950,0cyclictest0-21swapper/211:46:222
69079950,0cyclictest0-21swapper/211:19:342
69079950,0cyclictest0-21swapper/209:12:112
69079950,0cyclictest0-21swapper/208:49:292
69079950,0cyclictest0-21swapper/208:44:262
68999950,0cyclictest0-21swapper/111:52:411
68999950,0cyclictest0-21swapper/108:34:501
68959955,0cyclictest10091-21ssh11:45:000
68959955,0cyclictest0-21swapper/008:34:520
68959953,0cyclictest3703-21kworker/0:112:52:350
68959953,0cyclictest3703-21kworker/0:112:44:350
68959953,0cyclictest3703-21kworker/0:112:30:350
68959953,0cyclictest3703-21kworker/0:112:20:350
68959953,0cyclictest3703-21kworker/0:112:05:010
68959953,0cyclictest3703-21kworker/0:112:01:210
68959953,0cyclictest3703-21kworker/0:111:40:510
68959953,0cyclictest3703-21kworker/0:111:34:050
68959953,0cyclictest3703-21kworker/0:111:24:490
68959953,0cyclictest3703-21kworker/0:111:16:110
68959953,0cyclictest3703-21kworker/0:111:11:190
68959953,0cyclictest3703-21kworker/0:110:54:390
68959953,0cyclictest3703-21kworker/0:110:46:410
68959953,0cyclictest3703-21kworker/0:110:42:310
68959953,0cyclictest3703-21kworker/0:110:34:510
68959953,0cyclictest3703-21kworker/0:110:30:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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