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2026-06-30 - 17:03
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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 Jun 30, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2705627069,0sleep00-21swapper/007:23:200
27416995151,0cyclictest83050irq/26-0000:00:09:32:452
27413994646,0cyclictest522-21kworker/0:009:32:460
2640924635,0sleep10-21swapper/107:21:531
27414994242,0cyclictest28225-21md1_resync09:32:451
2026824140,0sleep20-21swapper/207:21:422
2732223828,0sleep30-21swapper/307:26:193
27416991414,0cyclictest83050irq/26-0000:00:11:05:112
27416991111,0cyclictest83050irq/26-0000:00:10:33:232
27416991111,0cyclictest83050irq/26-0000:00:10:03:512
27416991010,0cyclictest83050irq/26-0000:00:11:36:002
274169999,0cyclictest83050irq/26-0000:00:12:54:352
274169988,0cyclictest83050irq/26-0000:00:12:50:322
274169988,0cyclictest83050irq/26-0000:00:11:53:432
274169988,0cyclictest83050irq/26-0000:00:09:58:512
274169988,0cyclictest83050irq/26-0000:00:09:48:382
4170,0ktimersoftd/00-21swapper/010:24:380
274169977,0cyclictest83050irq/26-0000:00:12:27:302
274169977,0cyclictest83050irq/26-0000:00:12:16:592
274169977,0cyclictest83050irq/26-0000:00:11:25:452
274169977,0cyclictest83050irq/26-0000:00:11:19:442
274169977,0cyclictest83050irq/26-0000:00:11:14:212
274169977,0cyclictest83050irq/26-0000:00:11:10:222
8305060,0irq/26-0000:00:28870-21munin-run08:11:303
8305060,0irq/26-0000:00:11934-21fschecks_count08:21:443
8305060,0irq/26-0000:00:10982-21perl09:26:453
35160,0ktimersoftd/30-21swapper/310:24:383
35160,0ktimersoftd/30-21swapper/309:35:453
339960,0migration/315637-21kthreadcore11:36:483
339960,0migration/315256-21sh11:53:473
29805060,0irq/28-eth0-rx-5922-21grep10:36:443
274169966,0cyclictest83050irq/26-0000:00:12:40:492
274169966,0cyclictest83050irq/26-0000:00:12:33:572
274169966,0cyclictest83050irq/26-0000:00:12:10:312
274169966,0cyclictest83050irq/26-0000:00:11:39:262
274169966,0cyclictest83050irq/26-0000:00:10:36:332
274169966,0cyclictest83050irq/26-0000:00:10:29:172
274169966,0cyclictest83050irq/26-0000:00:09:40:372
274169960,0cyclictest0-21swapper/209:07:252
274149965,0cyclictest5961-21irqrtprio09:41:471
274149960,0cyclictest0-21swapper/112:00:471
274149960,0cyclictest0-21swapper/111:53:041
274149960,0cyclictest0-21swapper/109:06:441
274139960,0cyclictest0-21swapper/011:02:570
274139960,0cyclictest0-21swapper/010:09:590
274139960,0cyclictest0-21swapper/008:43:070
274139960,0cyclictest0-21swapper/008:23:430
27160,0ktimersoftd/20-21swapper/210:24:382
19160,0ktimersoftd/10-21swapper/110:24:381
149960,0migration/030742-21sh10:50:360
149960,0migration/027705-21sh10:30:030
149960,0migration/010617-21latency_hist12:11:310
149960,0migration/010228-21sh12:11:030
8305050,0irq/26-0000:00:9549-21seq07:34:043
8305050,0irq/26-0000:00:9020-21cut08:41:433
8305050,0irq/26-0000:00:6314-21runrttasks08:51:353
8305050,0irq/26-0000:00:576-21tr11:26:502
8305050,0irq/26-0000:00:3359-21kthreadcore08:36:483
8305050,0irq/26-0000:00:3325-21grep11:46:502
8305050,0irq/26-0000:00:31216-21aten_r1power_po12:41:432
8305050,0irq/26-0000:00:22136-21ssh10:46:022
8305050,0irq/26-0000:00:2206-21kthreadcore08:11:483
8305050,0irq/26-0000:00:20328-21munin-node09:11:473
8305050,0irq/26-0000:00:18909-21kthreadcore11:56:492
8305050,0irq/26-0000:00:18669-21irqcore07:41:473
8305050,0irq/26-0000:00:16858-21awk12:11:512
8305050,0irq/26-0000:00:13684-21cut09:06:453
8305050,0irq/26-0000:00:0-21swapper/308:16:483
8305050,0irq/26-0000:00:0-21swapper/307:59:593
8305050,0irq/26-0000:00:0-21swapper/307:26:503
8305050,0irq/26-0000:00:0-21swapper/211:45:072
8305050,0irq/26-0000:00:0-21swapper/209:41:482
339950,0migration/3938-21kthreadcore09:36:493
339950,0migration/38638-21munin-node10:01:433
339950,0migration/38225-21kthreadcore09:21:523
339950,0migration/38096-21cpuspeed_turbos10:56:433
339950,0migration/35773-21irqcore09:41:473
339950,0migration/35583-21runrttasks09:01:373
339950,0migration/35259-21munin-node10:51:503
339950,0migration/332326-21fschecks_time09:56:453
339950,0migration/330201-21kthreadcore11:26:493
339950,0migration/327633-21taskset12:20:303
339950,0migration/32585-21fschecks_count10:16:433
339950,0migration/322663-21aten_r1power_fr10:46:423
339950,0migration/318527-21kthreadcore09:46:483
339950,0migration/316758-21fschecks_time08:46:433
339950,0migration/315276-21kthreadcore07:36:493
329950,0watchdog/331565-21cut09:16:493
329950,0watchdog/330929-21kthreadcore08:31:493
329950,0watchdog/327251-21ssh11:24:183
329950,0watchdog/32449-21kthreadcore11:46:503
329950,0watchdog/320798-21kthreadcore08:26:453
329950,0watchdog/316517-21kthreadcore12:31:463
329950,0watchdog/316510-21kthreadcore10:41:503
329950,0watchdog/315658-21kthreadcore11:16:503
329950,0watchdog/30-21swapper/307:46:453
29815050,0irq/29-eth0-tx-8271-21sed10:56:432
29815050,0irq/29-eth0-tx-2747-21perl10:16:432
29815050,0irq/29-eth0-tx-26531-21ssh12:01:482
29815050,0irq/29-eth0-tx-23206-21munin-node08:51:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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