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2026-09-11 - 08:27
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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 792 highest latencies:
System rack1slot2.osadl.org (updated Fri Sep 11, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3068424341,0sleep20-21swapper/219:29:352
3080223728,0sleep10-21swapper/119:30:581
3067722824,0sleep00-21swapper/019:29:290
3061622723,0sleep30-21swapper/319:28:473
8305060,0irq/26-0000:00:13429-21awk21:12:273
339960,0migration/36665-21sh22:24:293
339960,0migration/35154-21sh22:05:233
339960,0migration/331985-21fschecks_time20:17:393
339960,0migration/330113-21munin-node20:12:463
339960,0migration/330043-21kthreadcore21:42:473
339960,0migration/329353-21sh23:34:423
339960,0migration/319575-21sh23:11:273
339960,0migration/315296-21aten_r1power_cu23:47:383
329960,0watchdog/39014-21ssh22:45:583
329960,0watchdog/332151-21kthreadcore23:37:423
310019966,0cyclictest0-21swapper/200:07:102
310019960,0cyclictest0-21swapper/200:22:562
309999963,0cyclictest6200-21munin-run21:07:270
29815060,0irq/29-eth0-tx-20488-21munin-node19:47:500
29805060,0irq/28-eth0-rx-19608-21ntp_states23:27:493
29805060,0irq/28-eth0-rx-1307-21ssh00:16:573
179960,0migration/110786-21sh00:38:511
149960,0migration/06167-21pmu-power23:57:490
339950,0migration/36710-21kthreadcore20:42:443
339950,0migration/35184-21kthreadcore23:02:453
339950,0migration/3490-21kthreadcore19:32:443
339950,0migration/332379-21fschecks_time21:02:403
339950,0migration/331004-21kthreadcore00:32:483
339950,0migration/330260-21needreboot20:57:463
339950,0migration/329495-21diskmemload22:17:483
339950,0migration/327009-21aten_r1power_vo22:57:403
339950,0migration/325146-21diskmemload22:53:143
339950,0migration/324319-21fschecks_count23:52:443
339950,0migration/324018-21kthreadcore23:12:503
339950,0migration/319527-21munin-node00:27:413
339950,0migration/319527-21munin-node00:27:413
339950,0migration/318159-21munin-node20:07:423
339950,0migration/31785-21unixbench_singl19:52:523
339950,0migration/317798-21kthreadcore20:27:463
339950,0migration/31702-21munin-node21:22:473
339950,0migration/316398-21missed_timers00:22:483
339950,0migration/316354-21kthreadcore19:42:433
339950,0migration/315593-21munin-node20:02:453
339950,0migration/312999-21kthreadcore20:47:443
339950,0migration/312137-21sh23:24:213
339950,0migration/311908-21sh00:42:093
329950,0watchdog/39736-21if_eth1.200:02:423
329950,0watchdog/329602-21perl23:17:423
329950,0watchdog/317639-21cut21:12:463
329950,0watchdog/311409-21irqcore21:32:423
310019955,0cyclictest20185-21ssh23:12:372
310019955,0cyclictest0-21swapper/223:24:082
310019955,0cyclictest0-21swapper/222:06:342
310019950,0cyclictest32329-21munin-node23:57:412
310019950,0cyclictest0-21swapper/223:49:122
309999955,0cyclictest0-21swapper/020:02:400
29815050,0irq/29-eth0-tx-7184-21cut00:37:452
29815050,0irq/29-eth0-tx-5478-21ssh23:39:322
29815050,0irq/29-eth0-tx-28042-21munin-node21:22:410
29815050,0irq/29-eth0-tx-27903-21kthreadcore23:52:482
29815050,0irq/29-eth0-tx-18926-21ps21:52:492
29815050,0irq/29-eth0-tx-0-21swapper/020:17:290
29805050,0irq/28-eth0-rx-8159-21rt-features00:17:513
29805050,0irq/28-eth0-rx-31304-21taskset22:37:473
29805050,0irq/28-eth0-rx-12834-21aten_r1power_po21:52:393
29805050,0irq/28-eth0-rx-0-21swapper/323:42:453
29805050,0irq/28-eth0-rx-0-21swapper/322:30:243
29805050,0irq/28-eth0-rx-0-21swapper/322:14:213
29805050,0irq/28-eth0-rx-0-21swapper/321:47:443
29805050,0irq/28-eth0-rx-0-21swapper/300:57:323
29805050,0irq/28-eth0-rx-0-21swapper/300:52:443
29805050,0irq/28-eth0-rx-0-21swapper/300:47:453
29805050,0irq/28-eth0-rx-0-21swapper/300:45:233
29805050,0irq/28-eth0-rx-0-21swapper/300:07:483
27150,0ktimersoftd/20-21swapper/201:00:372
259950,0migration/24624-21kthreadcore20:17:442
259950,0migration/222454-21sh22:16:072
249950,0watchdog/212450-21perl23:07:422
179950,0migration/17989-21kthreadcore20:22:441
179950,0migration/127326-21taskset20:33:591
179950,0migration/123971-21latency_hist20:12:261
179950,0migration/121547-21processes23:47:481
179950,0migration/119976-21kthreadcore22:32:451
179950,0migration/115665-21kthreadcore19:42:431
179950,0migration/112658-21munin-node19:37:531
179950,0migration/110329-21kthreadcore00:02:441
169950,0watchdog/13525-21kthreadcore00:17:461
169950,0watchdog/132153-21tail23:37:421
169950,0watchdog/131463-21kthreadcore22:57:461
149950,0migration/09469-21taskset22:47:190
149950,0migration/09252-21switchtime21:27:520
149950,0migration/09050-21kthreadcore23:42:440
149950,0migration/06897-21irqcore00:57:450
149950,0migration/03993-21sh23:20:420
149950,0migration/03294-21irqrtprio00:17:460
149950,0migration/03291-21kthreadcore22:22:460
149950,0migration/03240-21fschecks_time19:57:400
149950,0migration/030781-21kthreadcore00:32:480
149950,0migration/029271-21sh23:34:270
149950,0migration/028209-21kthreadcore00:12:470
149950,0migration/026914-21sh23:13:020
149950,0migration/026009-21kthreadcore23:52:480
149950,0migration/023553-21kthreadcore21:17:450
149950,0migration/019806-21idleruntime21:37:430
149950,0migration/019768-21kthreadcore20:52:440
149950,0migration/018641-21kernelversion00:07:440
149950,0migration/017751-21sh00:24:410
149950,0migration/016673-21kthreadcore22:12:460
149950,0migration/016398-21kthreadcore23:27:460
149950,0migration/013475-21kthreadcore00:02:450
149950,0migration/012666-21kthreadcore21:32:430
149950,0migration/01191-21kthreadcore20:37:460
8305040,0irq/26-0000:00:10283-21ssh23:04:082
339940,0migration/37258-21idleruntime20:22:423
339940,0migration/330908-21kthreadcore20:37:463
339940,0migration/322572-21kthreadcore20:32:443
339940,0migration/317016-21diskmemload22:49:253
339940,0migration/312738-21taskset19:38:483
329940,0watchdog/30-21swapper/321:57:463
310019943,0cyclictest5166-21awk21:47:432
310019943,0cyclictest3571-21lldpd21:22:392
310019943,0cyclictest3571-21lldpd19:37:372
310019943,0cyclictest3524-21snmpd20:44:472
310019943,0cyclictest3524-21snmpd20:32:322
310019943,0cyclictest3524-21snmpd19:57:322
310019943,0cyclictest32671-21awk21:02:422
310019943,0cyclictest3250-21irqbalance20:28:132
310019943,0cyclictest3250-21irqbalance20:22:432
310019943,0cyclictest3250-21irqbalance20:07:432
310019943,0cyclictest3250-21irqbalance19:52:532
310019943,0cyclictest28644-21awk00:32:462
310019943,0cyclictest25449-21awk20:57:432
310019943,0cyclictest25028-21aten2.4-expect22:37:372
310019943,0cyclictest21551-21awk19:47:412
310019943,0cyclictest18156-21awk20:52:422
310019940,0cyclictest1147-21munin-node22:42:402
310009943,0cyclictest3710-21awk19:57:421
310009943,0cyclictest3571-21lldpd23:03:391
310009943,0cyclictest3571-21lldpd22:47:391
310009943,0cyclictest3571-21lldpd22:46:091
310009943,0cyclictest3571-21lldpd21:52:391
310009943,0cyclictest3571-21lldpd00:52:401
310009943,0cyclictest339-21awk22:22:431
310009943,0cyclictest28620-21awk00:32:461
310009943,0cyclictest28607-21awk21:42:441
310009943,0cyclictest25319-21awk20:12:431
309999944,0cyclictest0-21swapper/020:35:080
309999943,0cyclictest7599-21awk21:07:430
309999943,0cyclictest3571-21lldpd23:47:390
309999943,0cyclictest3571-21lldpd22:52:390
309999943,0cyclictest3250-21irqbalance23:23:140
309999943,0cyclictest3250-21irqbalance22:57:340
309999943,0cyclictest3250-21irqbalance22:38:340
309999943,0cyclictest3250-21irqbalance22:34:140
309999943,0cyclictest3250-21irqbalance22:27:430
309999943,0cyclictest3250-21irqbalance21:47:330
309999943,0cyclictest3250-21irqbalance21:45:430
309999943,0cyclictest3250-21irqbalance20:57:330
309999943,0cyclictest3250-21irqbalance20:49:030
309999943,0cyclictest3250-21irqbalance19:32:330
309999943,0cyclictest3250-21irqbalance00:47:540
309999943,0cyclictest3250-21irqbalance00:42:340
309999943,0cyclictest3250-21irqbalance00:37:440
309999943,0cyclictest3250-21irqbalance00:27:440
309999943,0cyclictest3250-21irqbalance00:27:440
309999943,0cyclictest31754-21awk23:37:410
309999943,0cyclictest14680-21awk21:12:430
309999943,0cyclictest13685-21ssh22:10:220
309999943,0cyclictest12789-21awk23:07:440
309999940,0cyclictest0-21swapper/022:04:040
29815040,0irq/29-eth0-tx-31643-21ssh22:22:272
29815040,0irq/29-eth0-tx-29436-21ssh23:34:572
29815040,0irq/29-eth0-tx-28187-21ssh21:58:102
29815040,0irq/29-eth0-tx-23325-21munin-node22:17:382
29815040,0irq/29-eth0-tx-17889-21ssh22:52:022
29815040,0irq/29-eth0-tx-16968-21munin-node20:07:390
29815040,0irq/29-eth0-tx-16876-21kthreadcore20:27:460
29815040,0irq/29-eth0-tx-13798-21ssh23:43:532
29815040,0irq/29-eth0-tx-0-21swapper/223:27:442
29815040,0irq/29-eth0-tx-0-21swapper/222:32:392
29815040,0irq/29-eth0-tx-0-21swapper/222:09:032
29815040,0irq/29-eth0-tx-0-21swapper/200:53:542
29815040,0irq/29-eth0-tx-0-21swapper/200:47:282
29815040,0irq/29-eth0-tx-0-21swapper/200:12:392
29815040,0irq/29-eth0-tx-0-21swapper/200:07:492
29815040,0irq/29-eth0-tx-0-21swapper/020:12:280
29815040,0irq/29-eth0-tx-0-21swapper/019:37:470
29805040,0irq/28-eth0-rx-0-21swapper/323:57:493
29805040,0irq/28-eth0-rx-0-21swapper/322:32:353
29805040,0irq/28-eth0-rx-0-21swapper/322:07:403
29805040,0irq/28-eth0-rx-0-21swapper/321:37:293
29805040,0irq/28-eth0-rx-0-21swapper/321:27:453
29805040,0irq/28-eth0-rx-0-21swapper/321:17:473
29805040,0irq/28-eth0-rx-0-21swapper/319:47:383
259940,0migration/29747-21latency_hist20:02:262
259940,0migration/28387-21kthreadcore21:27:462
259940,0migration/28216-21cpuspeed_turbos22:27:402
259940,0migration/27397-21gltestperf21:07:412
259940,0migration/230798-21kthreadcore23:17:462
259940,0migration/230391-21kthreadcore20:37:462
259940,0migration/229370-21kthreadcore20:12:452
259940,0migration/22721-21kthreadcore19:32:452
259940,0migration/223622-21kthreadcore22:52:452
259940,0migration/219278-21cpuspeed_turbos00:27:402
259940,0migration/219278-21cpuspeed_turbos00:27:402
259940,0migration/21663-21latency_hist00:17:282
259940,0migration/215530-21kthreadcore19:42:432
259940,0migration/214029-21kthreadcore21:32:432
249940,0watchdog/227970-21diskstats21:42:422
249940,0watchdog/227407-21yum21:17:542
249940,0watchdog/219619-21perl21:37:422
249940,0watchdog/20-21swapper/222:57:462
249940,0watchdog/20-21swapper/200:42:432
179940,0migration/16877-21forks21:07:401
179940,0migration/14798-21kthreadcore21:02:451
179940,0migration/132018-21taskset22:38:431
179940,0migration/131253-21kthreadcore00:12:471
179940,0migration/12979-21runrttasks23:17:551
179940,0migration/12732-21aten_r1power_fr20:42:371
179940,0migration/126121-21kthreadcore21:17:451
179940,0migration/123812-21taskset20:54:171
179940,0migration/121872-21munin-node21:57:411
179940,0migration/120708-21latency_hist00:47:281
179940,0migration/120186-21taskset20:29:431
179940,0migration/11922-21kthreadcore19:32:451
179940,0migration/117543-21kthreadcore22:12:461
179940,0migration/113506-21kthreadcore20:02:441
179940,0migration/113156-21kthreadcore22:27:461
179940,0migration/112373-21sh23:25:051
179940,0migration/111432-21kthreadcore23:42:451
169940,0watchdog/175482sleep100:00:181
169940,0watchdog/130986-21cat20:37:461
169940,0watchdog/130887-21gltestperf22:02:421
169940,0watchdog/126376-21kthreadcore00:47:471
169940,0watchdog/10-21swapper/123:13:541
169940,0watchdog/10-21swapper/121:12:461
169940,0watchdog/10-21swapper/120:17:381
169940,0watchdog/10-21swapper/100:32:071
169940,0watchdog/10-21swapper/100:32:071
149940,0migration/025921-21diskmemload22:17:440
149940,0migration/018364-21kthreadcore19:42:440
149940,0migration/017156-21kthreadcore21:52:460
149940,0migration/012710-21kthreadcore22:47:460
329930,0watchdog/30-21swapper/320:52:383
329930,0watchdog/30-21swapper/319:57:303
310019930,0cyclictest12955-21grep20:47:442
310009932,0cyclictest7182-21sort22:07:421
310009932,0cyclictest3571-21lldpd21:47:391
310009932,0cyclictest3524-21snmpd21:27:431
310009932,0cyclictest19412-21awk22:52:421
310009932,0cyclictest18126-21awk00:07:421
310009930,0cyclictest28461-21diskstats21:22:391
310009930,0cyclictest0-21swapper/123:35:091
309999932,0cyclictest3524-21snmpd20:42:320
309999932,0cyclictest29447-21basename00:52:390
309999930,0cyclictest7682-21kthreadcore23:02:460
29815030,0irq/29-eth0-tx-0-21swapper/020:22:390
29815030,0irq/29-eth0-tx-0-21swapper/019:52:370
249930,0watchdog/20-21swapper/221:12:462
179930,0migration/112646-21kthreadcore20:47:441
169930,0watchdog/19310-21kthreadcore00:57:471
169930,0watchdog/123336-21munin-node22:17:381
169930,0watchdog/114461-21kthreadcore00:22:461
169930,0watchdog/10-21swapper/123:53:061
169930,0watchdog/10-21swapper/123:27:421
169930,0watchdog/10-21swapper/123:07:421
169930,0watchdog/10-21swapper/121:37:421
169930,0watchdog/10-21swapper/121:32:421
169930,0watchdog/10-21swapper/119:47:461
149930,0migration/028379-21runrttasks21:58:390
169920,0watchdog/10-21swapper/120:57:341
169920,0watchdog/10-21swapper/119:52:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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