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2026-04-28 - 13:17
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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 Apr 28, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1773023728,0sleep30-21swapper/319:20:253
1745223425,0sleep10-21swapper/119:17:111
1756123324,0sleep20-21swapper/219:18:282
1754423228,0sleep00-21swapper/019:18:140
35160,0ktimersoftd/30-21swapper/321:50:493
339960,0migration/39919-21cpuspeed_turbos00:16:323
339960,0migration/39272-21sh23:16:443
339960,0migration/38140-21sh00:12:583
339960,0migration/34702-21fschecks_time19:56:323
339960,0migration/3432-21munin-node23:11:413
339960,0migration/326977-21sh23:27:013
339960,0migration/32482-21aten_r1power_en22:01:313
339960,0migration/324633-21sh00:21:443
339960,0migration/317634-21munin-node21:51:303
339960,0migration/314840-21sh22:44:543
339960,0migration/31285-21sh21:58:583
29815060,0irq/29-eth0-tx-3857-21munin-node19:56:400
29805060,0irq/28-eth0-rx-387-21diskstats21:41:323
29805060,0irq/28-eth0-rx-20608-21kthreadcore00:01:363
29805060,0irq/28-eth0-rx-12121-21uname21:26:423
29805060,0irq/28-eth0-rx-0-21swapper/323:21:323
29805060,0irq/28-eth0-rx-0-21swapper/323:10:333
339950,0migration/35750-21kthreadcore20:41:353
339950,0migration/35750-21diskmemload23:52:463
339950,0migration/32864-21open_files00:46:403
339950,0migration/326791-21kthreadcore00:06:353
339950,0migration/326007-21fschecks_time19:26:343
339950,0migration/323965-21munin-node21:36:303
339950,0migration/323628-21kthreadcore00:41:373
339950,0migration/323033-21kthreadcore22:11:373
339950,0migration/318025-21kthreadcore21:11:333
339950,0migration/315369-21fschecks_count20:26:333
339950,0migration/313476-21aten_r1power_en22:26:303
339950,0migration/310172-21kthreadcore20:21:363
329950,0watchdog/34955-21ssh22:21:293
329950,0watchdog/33347-21ssh23:32:143
329950,0watchdog/330078-21grep20:56:373
329950,0watchdog/326874-21sh00:26:223
329950,0watchdog/30-21swapper/323:01:383
329950,0watchdog/30-21swapper/322:31:293
329950,0watchdog/30-21swapper/321:21:373
29815050,0irq/29-eth0-tx-13728-21munin-node23:41:352
29815050,0irq/29-eth0-tx-0-21swapper/020:51:300
29815050,0irq/29-eth0-tx-0-21swapper/019:41:300
29805050,0irq/28-eth0-rx-3756-21kthreadcore22:36:363
29805050,0irq/28-eth0-rx-28495-21python21:16:433
29805050,0irq/28-eth0-rx-14963-21irqcore23:41:333
29805050,0irq/28-eth0-rx-0-21swapper/323:56:323
29805050,0irq/28-eth0-rx-0-21swapper/323:40:133
29805050,0irq/28-eth0-rx-0-21swapper/322:56:393
29805050,0irq/28-eth0-rx-0-21swapper/322:51:573
29805050,0irq/28-eth0-rx-0-21swapper/322:06:363
29805050,0irq/28-eth0-rx-0-21swapper/321:31:363
29805050,0irq/28-eth0-rx-0-21swapper/320:06:313
29805050,0irq/28-eth0-rx-0-21swapper/300:37:213
29805050,0irq/28-eth0-rx-0-21swapper/300:36:143
249950,0watchdog/218715-21grep22:46:342
19150,0ktimersoftd/10-21swapper/121:39:411
178779955,0cyclictest28477-21sensors21:16:412
178779950,0cyclictest0-21swapper/223:03:252
178779950,0cyclictest0-21swapper/222:57:262
178779950,0cyclictest0-21swapper/220:25:462
178769955,0cyclictest0-21swapper/123:04:021
178769955,0cyclictest0-21swapper/121:22:011
178769955,0cyclictest0-21swapper/120:31:441
178769950,0cyclictest0-21swapper/121:47:151
178769950,0cyclictest0-21swapper/121:28:291
178769950,0cyclictest0-21swapper/100:39:061
178759954,0cyclictest11277-21idleruntime-cro23:21:190
179950,0migration/18805-21irqcore19:36:341
179950,0migration/132013-21kthreadcore23:31:371
179950,0migration/13077-21kthreadcore22:56:391
179950,0migration/128240-21kthreadcore22:51:371
179950,0migration/124668-21kthreadcore23:26:381
179950,0migration/12276-21kthreadcore22:36:351
179950,0migration/12249-21taskset23:15:341
179950,0migration/118968-21fschecks_count20:51:331
179950,0migration/116186-21kthreadcore23:21:371
179950,0migration/113253-21latency23:56:391
179950,0migration/112130-21kthreadcore00:16:371
179950,0migration/110928-21kthreadcore23:36:381
149950,0migration/0931-21aten_r1power_en00:11:310
149950,0migration/05560-21kthreadcore00:31:370
149950,0migration/05485-21kthreadcore22:56:400
149950,0migration/04478-21dump-pmu-power22:21:140
149950,0migration/04038-21kthreadcore19:31:350
149950,0migration/032350-21latency_hist21:41:180
149950,0migration/028655-21sh00:45:510
149950,0migration/028233-21kthreadcore00:06:350
149950,0migration/026987-21kthreadcore22:51:360
149950,0migration/025902-21cpu20:56:310
149950,0migration/023850-21sh22:50:570
149950,0migration/023803-21kthreadcore23:06:370
149950,0migration/023256-21idleruntime21:16:330
149950,0migration/022295-21kthreadcore23:26:370
149950,0migration/022254-21cpuspeed_turbos22:31:310
149950,0migration/021250-21smart_sdb21:11:390
149950,0migration/020320-21kthreadcore19:21:350
149950,0migration/018667-21munin-node00:21:320
149950,0migration/016244-21kthreadcore20:46:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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