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2026-07-12 - 21:18
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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 Sun Jul 12, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1623125041,0sleep10-21swapper/107:25:471
1619323728,0sleep20-21swapper/207:25:242
1618423525,0sleep30-21swapper/307:25:173
1042322826,0sleep00-21swapper/007:22:460
339960,0migration/328440-21sh11:54:373
339960,0migration/326824-21sh11:36:203
339960,0migration/323115-21munin-node07:27:563
339960,0migration/320997-21sh09:40:553
339960,0migration/311488-21sh11:45:313
29815060,0irq/29-eth0-tx-20583-21munin-node08:37:500
29815060,0irq/29-eth0-tx-13507-21munin-node09:17:470
164509960,0cyclictest23643-21ssh11:13:571
164429963,0cyclictest4153-21kworker/0:211:06:330
149960,0migration/08914-21sh10:11:440
149960,0migration/014727-21sh11:08:170
8305050,0irq/26-0000:00:18572-21unixbench_singl10:32:552
339950,0migration/39969-21fschecks_count10:12:423
339950,0migration/35166-21hwlatdetect09:32:453
339950,0migration/332009-21irqcore09:47:473
339950,0migration/33126-21munin-node10:27:403
339950,0migration/329880-21aten_r1power_po11:57:413
339950,0migration/328529-21kthreadcore11:17:483
339950,0migration/326746-21kthreadcore10:57:473
339950,0migration/325123-21munin-node10:02:423
339950,0migration/324590-21kthreadcore08:37:473
339950,0migration/323375-21kthreadcore07:52:463
339950,0migration/323142-21kthreadcore12:47:463
339950,0migration/322872-21gltestperf09:42:433
339950,0migration/318779-21kthreadcore11:12:483
339950,0migration/314861-21munin-node12:07:423
339950,0migration/31208-21munin-node12:17:473
339950,0migration/311927-21needreboot07:42:483
329950,0watchdog/39033-21yum08:02:563
329950,0watchdog/38834-21sh12:38:013
329950,0watchdog/330150-21kthreadcore07:57:483
329950,0watchdog/317117-21cut12:27:413
329950,0watchdog/315915-21kthreadcore09:17:483
329950,0watchdog/314197-21kthreadcore12:22:493
329950,0watchdog/30-21swapper/310:17:483
29815050,0irq/29-eth0-tx-6124-21cut10:27:472
29815050,0irq/29-eth0-tx-336-21tune2fs12:17:442
29815050,0irq/29-eth0-tx-15377-21ssh12:23:332
29815050,0irq/29-eth0-tx-1509-21ssh09:27:480
29815050,0irq/29-eth0-tx-11198-21ssh11:44:432
29815050,0irq/29-eth0-tx-10456-21processes09:32:522
29815050,0irq/29-eth0-tx-0-21swapper/212:38:232
29815050,0irq/29-eth0-tx-0-21swapper/212:12:322
29815050,0irq/29-eth0-tx-0-21swapper/211:37:492
29815050,0irq/29-eth0-tx-0-21swapper/210:18:432
29815050,0irq/29-eth0-tx-0-21swapper/209:57:482
29815050,0irq/29-eth0-tx-0-21swapper/008:24:500
29815050,0irq/29-eth0-tx-0-21swapper/007:39:410
29805050,0irq/28-eth0-rx-32741-21wc10:22:493
29805050,0irq/28-eth0-rx-31644-21kthreadcore11:37:493
29805050,0irq/28-eth0-rx-2964-21kthreadcore10:07:473
29805050,0irq/28-eth0-rx-10835-21kthreadcore09:52:483
29805050,0irq/28-eth0-rx-0-21swapper/312:52:423
29805050,0irq/28-eth0-rx-0-21swapper/312:42:493
29805050,0irq/28-eth0-rx-0-21swapper/312:12:473
29805050,0irq/28-eth0-rx-0-21swapper/311:31:463
29805050,0irq/28-eth0-rx-0-21swapper/311:10:493
29805050,0irq/28-eth0-rx-0-21swapper/311:02:483
29805050,0irq/28-eth0-rx-0-21swapper/310:52:003
29805050,0irq/28-eth0-rx-0-21swapper/310:42:313
29805050,0irq/28-eth0-rx-0-21swapper/310:32:433
29805050,0irq/28-eth0-rx-0-21swapper/310:02:073
29805050,0irq/28-eth0-rx-0-21swapper/309:29:013
29805050,0irq/28-eth0-rx-0-21swapper/308:22:463
27150,0ktimersoftd/20-21swapper/212:53:232
259950,0migration/25046-21latency11:02:492
259950,0migration/231348-21aten_r1power_fr08:22:402
259950,0migration/230894-21munin-node10:02:532
259950,0migration/230810-21idleruntime11:57:442
259950,0migration/229486-21kthreadcore11:17:482
259950,0migration/227983-21kthreadcore10:57:482
259950,0migration/227103-21kthreadcore09:02:462
259950,0migration/215165-21sh09:56:342
259950,0migration/210817-21gltestperf08:52:442
179950,0migration/19406-21irqrtprio11:07:481
179950,0migration/15347-21taskset07:38:171
179950,0migration/13369-21sh08:02:421
179950,0migration/129651-21latency_hist11:57:301
179950,0migration/129546-21kthreadcore08:42:471
179950,0migration/126548-21munin-node07:52:511
179950,0migration/126020-21kthreadcore11:52:481
179950,0migration/123700-21sh10:01:081
179950,0migration/121682-21gltestperf09:22:431
179950,0migration/120485-21munin-node12:47:441
179950,0migration/114380-21fschecks_time09:17:441
164569955,0cyclictest0-21swapper/212:04:312
164569955,0cyclictest0-21swapper/211:34:152
164569955,0cyclictest0-21swapper/208:17:292
164569954,0cyclictest23287-21yum11:12:582
164569950,0cyclictest0-21swapper/212:49:272
164509955,0cyclictest0-21swapper/112:36:151
164509955,0cyclictest0-21swapper/111:29:241
164509950,0cyclictest0-21swapper/112:40:021
164509950,0cyclictest0-21swapper/110:56:551
164509950,0cyclictest0-21swapper/110:25:521
164509950,0cyclictest0-21swapper/109:41:151
164429955,0cyclictest0-21swapper/007:52:290
164429953,0cyclictest4153-21kworker/0:211:17:350
164429953,0cyclictest4153-21kworker/0:211:13:490
164429953,0cyclictest4153-21kworker/0:210:58:010
164429953,0cyclictest4153-21kworker/0:210:52:330
164429953,0cyclictest4153-21kworker/0:210:42:310
164429953,0cyclictest4153-21kworker/0:210:38:350
164429953,0cyclictest4153-21kworker/0:210:32:310
164429953,0cyclictest28756-21kworker/0:110:27:330
164429953,0cyclictest28756-21kworker/0:110:22:390
164429953,0cyclictest28756-21kworker/0:110:17:310
164429953,0cyclictest28756-21kworker/0:109:57:400
164429953,0cyclictest28756-21kworker/0:109:53:020
164429953,0cyclictest28756-21kworker/0:109:42:340
164429953,0cyclictest28756-21kworker/0:109:32:320
164429953,0cyclictest26213-21kworker/0:012:52:330
164429953,0cyclictest26213-21kworker/0:012:47:390
164429953,0cyclictest26213-21kworker/0:012:42:350
164429953,0cyclictest26213-21kworker/0:012:39:010
164429953,0cyclictest26213-21kworker/0:012:27:330
164429953,0cyclictest26213-21kworker/0:012:22:350
164429953,0cyclictest26213-21kworker/0:012:18:210
164429953,0cyclictest26213-21kworker/0:012:12:310
164429953,0cyclictest26213-21kworker/0:012:07:330
164429953,0cyclictest26213-21kworker/0:012:02:310
164429953,0cyclictest26213-21kworker/0:011:58:030
164429953,0cyclictest26213-21kworker/0:011:53:050
164429953,0cyclictest26213-21kworker/0:011:48:010
164429953,0cyclictest26213-21kworker/0:011:37:390
164429953,0cyclictest26213-21kworker/0:011:34:490
164429953,0cyclictest26213-21kworker/0:011:28:110
169950,0watchdog/132299-21perl09:07:441
169950,0watchdog/130147-21kthreadcore07:57:481
149950,0migration/09572-21aten_r1power_po10:12:400
149950,0migration/09480-21kthreadcore10:47:500
149950,0migration/08774-21kthreadcore07:42:460
149950,0migration/07566-21kthreadcore08:02:460
149950,0migration/04817-21hwlatdetect11:42:440
149950,0migration/04523-21kthreadcore11:22:470
149950,0migration/030412-21unixbench_singl07:32:540
149950,0migration/030361-21processes09:02:500
149950,0migration/028104-21cpuspeed_turbos08:42:420
149950,0migration/026385-21fschecks_count12:32:430
149950,0migration/025045-21fschecks_count10:02:420
149950,0migration/023671-21taskset08:58:420
149950,0migration/021827-21kthreadcore07:27:480
149950,0migration/019282-21kthreadcore08:12:470
149950,0migration/01679-21kthreadcore09:47:480
149950,0migration/015689-21kthreadcore08:32:460
149950,0migration/013460-21df_abs09:37:440
8305040,0irq/26-0000:00:0-21swapper/308:42:293
8305040,0irq/26-0000:00:0-21swapper/210:52:512
339940,0migration/38010-21kthreadcore08:47:483
339940,0migration/330702-21taskset07:35:553
339940,0migration/330330-21switchtime08:17:543
339940,0migration/320109-21taskset07:52:193
339940,0migration/315189-21kthreadcore08:32:463
329940,0watchdog/39235-21kthreadcore09:12:483
329940,0watchdog/319999-21kthreadcore10:52:483
329940,0watchdog/30-21swapper/312:02:493
329940,0watchdog/30-21swapper/309:07:443
329940,0watchdog/30-21swapper/309:02:483
329940,0watchdog/30-21swapper/308:52:483
329940,0watchdog/30-21swapper/308:11:163
29815040,0irq/29-eth0-tx-31432-21telnet09:07:410
29815040,0irq/29-eth0-tx-1440-21ssh11:22:352
29815040,0irq/29-eth0-tx-11246-40yum-updatesd-he11:27:462
29815040,0irq/29-eth0-tx-0-21swapper/212:42:432
29815040,0irq/29-eth0-tx-0-21swapper/212:07:462
29815040,0irq/29-eth0-tx-0-21swapper/211:52:422
29815040,0irq/29-eth0-tx-0-21swapper/211:47:442
29815040,0irq/29-eth0-tx-0-21swapper/211:07:372
29815040,0irq/29-eth0-tx-0-21swapper/210:48:012
29815040,0irq/29-eth0-tx-0-21swapper/210:42:312
29815040,0irq/29-eth0-tx-0-21swapper/210:22:392
29815040,0irq/29-eth0-tx-0-21swapper/210:12:442
29815040,0irq/29-eth0-tx-0-21swapper/209:47:462
29815040,0irq/29-eth0-tx-0-21swapper/209:42:352
29815040,0irq/29-eth0-tx-0-21swapper/209:37:532
29815040,0irq/29-eth0-tx-0-21swapper/008:27:470
29815040,0irq/29-eth0-tx-0-21swapper/007:57:560
29805040,0irq/28-eth0-rx-21941-21irqcore10:37:483
29805040,0irq/28-eth0-rx-0-21swapper/312:32:503
29805040,0irq/28-eth0-rx-0-21swapper/311:47:473
29805040,0irq/28-eth0-rx-0-21swapper/311:22:403
29805040,0irq/28-eth0-rx-0-21swapper/309:01:153
29805040,0irq/28-eth0-rx-0-21swapper/307:37:463
259940,0migration/28875-21smart_nvme0n108:47:522
259940,0migration/23163-21kthreadcore10:07:472
259940,0migration/231588-21kthreadcore08:42:482
259940,0migration/229468-21kthreadcore07:32:472
259940,0migration/224426-21kthreadcore09:22:462
259940,0migration/218478-21kthreadcore07:27:472
259940,0migration/214404-21irqcore07:47:462
249940,0watchdog/230149-21kthreadcore07:57:482
249940,0watchdog/222344-21kthreadcore08:12:482
249940,0watchdog/20-21swapper/208:07:482
179940,0migration/19931-21kthreadcore12:02:481
179940,0migration/1769-21aten_r1power_fr10:07:411
179940,0migration/17103-21irqrtprio10:47:491
179940,0migration/131031-21kthreadcore09:27:461
179940,0migration/130562-21irqcore10:42:441
179940,0migration/129198-21kthreadcore07:32:471
179940,0migration/129086-21kthreadcore10:02:461
179940,0migration/128537-21fschecks_count12:52:441
179940,0migration/127055-21kthreadcore09:42:481
179940,0migration/125998-21fschecks_time11:17:441
179940,0migration/123809-21kthreadcore08:37:461
179940,0migration/120102-21taskset07:52:141
179940,0migration/116677-21kthreadcore12:07:481
179940,0migration/114451-21munin-node08:32:441
179940,0migration/11377-21latency_hist11:22:301
179940,0migration/111061-21kthreadcore08:27:491
164569943,0cyclictest7052-21awk07:42:442
164569943,0cyclictest3571-21lldpd09:01:042
164569943,0cyclictest29061-21awk09:27:442
164569943,0cyclictest26814-21awk12:32:452
164569943,0cyclictest21691-21awk10:37:472
164569943,0cyclictest14557-21awk09:17:462
164569940,0cyclictest0-21swapper/212:27:462
164569940,0cyclictest0-21swapper/207:37:362
164509943,0cyclictest3571-21lldpd11:48:361
164509943,0cyclictest3571-21lldpd10:14:341
164509943,0cyclictest3524-21snmpd12:22:431
164509943,0cyclictest3524-21snmpd10:31:571
164509943,0cyclictest32599-21awk11:02:461
164509943,0cyclictest20278-21sadc10:37:291
164509943,0cyclictest19226-21awk10:17:461
164509943,0cyclictest12142-21grep09:12:491
164509943,0cyclictest10748-21awk08:07:451
164429943,0cyclictest7387-21awk09:12:460
164429943,0cyclictest10896-21awk08:52:450
169940,0watchdog/15247-21ssh09:48:161
169940,0watchdog/13927-21basename11:42:411
169940,0watchdog/131092-21kthreadcore11:37:491
169940,0watchdog/127571-21ssh10:38:441
169940,0watchdog/121548-21grep11:32:491
169940,0watchdog/119567-21kthreadcore07:27:481
169940,0watchdog/117116-21basename12:27:411
169940,0watchdog/116005-21kthreadcore12:42:491
169940,0watchdog/113884-21ssh09:53:041
169940,0watchdog/10-21swapper/108:12:481
149940,0migration/011895-21kthreadcore08:07:470
329930,0watchdog/30-21swapper/309:22:563
329930,0watchdog/30-21swapper/308:27:443
329930,0watchdog/30-21swapper/308:12:483
29815030,0irq/29-eth0-tx-0-21swapper/007:47:400
249930,0watchdog/20-21swapper/209:12:482
249930,0watchdog/20-21swapper/209:07:442
249930,0watchdog/20-21swapper/208:02:402
164569933,0cyclictest0-21swapper/208:35:472
164569933,0cyclictest0-21swapper/208:29:572
164569930,0cyclictest26532-21sendmail_mailtr07:52:512
164509933,0cyclictest18216-21awk08:57:451
164509933,0cyclictest0-21swapper/108:49:421
164509932,0cyclictest7761-21kthreadcore09:32:481
164509932,0cyclictest7022-21awk07:42:431
164509932,0cyclictest30298-21proc_pri09:02:501
164509932,0cyclictest29743-21sensors12:12:521
164509932,0cyclictest27482-21kthreadcore10:57:471
164429933,0cyclictest28756-21kworker/0:109:22:300
164429933,0cyclictest12491-21kworker/0:108:17:300
164429933,0cyclictest0-21swapper/008:47:300
169930,0watchdog/10-21swapper/112:17:491
169930,0watchdog/10-21swapper/108:52:401
169930,0watchdog/10-21swapper/108:22:401
169930,0watchdog/10-21swapper/108:17:441
249920,0watchdog/20-21swapper/208:37:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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