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2026-09-07 - 22:30
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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 Mon Sep 07, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
207925149,0sleep30-21swapper/307:27:233
847124433,0sleep10-21swapper/107:29:571
840023626,0sleep20-21swapper/207:29:102
856123524,0sleep00-21swapper/007:31:000
87309988,0cyclictest25763-21awk10:12:271
87309960,0cyclictest0-21swapper/112:02:091
87309960,0cyclictest0-21swapper/111:23:411
339960,0migration/35989-21fschecks_time09:42:243
339960,0migration/34966-21sh12:50:043
339960,0migration/320241-21sh11:05:163
339960,0migration/316561-21munin-node08:22:203
29805060,0irq/28-eth0-rx-3221-21sh09:37:443
29805060,0irq/28-eth0-rx-0-21swapper/311:13:443
149960,0migration/06803-21sh10:00:490
149960,0migration/031980-21sh10:14:520
149960,0migration/025098-21sh10:29:390
149960,0migration/015267-21sh11:40:240
87349954,0cyclictest3571-21lldpd11:57:312
87349950,0cyclictest0-21swapper/211:49:522
87349950,0cyclictest0-21swapper/211:46:242
87349950,0cyclictest0-21swapper/211:09:592
87309955,0cyclictest0-21swapper/111:49:231
87309955,0cyclictest0-21swapper/111:13:541
87309955,0cyclictest0-21swapper/110:28:491
87309955,0cyclictest0-21swapper/107:52:351
87309950,0cyclictest0-21swapper/112:42:311
87309950,0cyclictest0-21swapper/112:10:591
87299955,0cyclictest0-21swapper/012:55:490
87299955,0cyclictest0-21swapper/009:37:480
87299950,0cyclictest0-21swapper/012:57:100
87299950,0cyclictest0-21swapper/012:34:430
87299950,0cyclictest0-21swapper/011:46:080
87299950,0cyclictest0-21swapper/010:26:030
87299950,0cyclictest0-21swapper/009:48:310
87299950,0cyclictest0-21swapper/008:27:250
8305050,0irq/26-0000:00:3325-21munin-node08:57:262
8305050,0irq/26-0000:00:14501-21cut12:17:282
339950,0migration/37558-21kthreadcore08:12:283
339950,0migration/36605-21latency10:17:273
339950,0migration/36605-21latency10:17:273
339950,0migration/35167-21kthreadcore10:37:273
339950,0migration/330931-21munin-node10:12:363
339950,0migration/327182-21taskset09:33:263
339950,0migration/326822-21kthreadcore07:42:283
339950,0migration/326611-21kthreadcore12:42:293
339950,0migration/326558-21taskset08:04:343
339950,0migration/325378-21fschecks_time11:47:243
339950,0migration/324870-21kthreadcore08:47:283
339950,0migration/323559-21fschecks_time11:27:243
339950,0migration/321753-21fschecks_count11:07:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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