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2026-05-01 - 17:47
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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 376 highest latencies:
System rack1slot2.osadl.org (updated Fri May 01, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
725323725,0sleep10-21swapper/107:21:041
702723626,0sleep20-21swapper/207:18:372
727522925,0sleep30-21swapper/307:21:223
692922925,0sleep00-21swapper/007:17:270
73689974,0cyclictest0-21swapper/211:27:002
73689973,0cyclictest16773-21awk09:56:522
73689973,0cyclictest1564-21awk08:01:502
73689970,0cyclictest8289-21iostat09:51:512
73679976,0cyclictest0-21swapper/111:41:471
73689966,0cyclictest0-21swapper/212:41:532
73689963,0cyclictest8911-21awk12:21:522
73689960,0cyclictest0-21swapper/212:19:002
73679966,0cyclictest0-21swapper/112:08:161
73679966,0cyclictest0-21swapper/111:08:121
339960,0migration/36597-21sh09:51:073
339960,0migration/331939-21kthreadcore09:06:523
339960,0migration/328777-21sh11:56:083
339960,0migration/31431-21gltestperf08:01:493
29805060,0irq/28-eth0-rx-8298-21iostat_ios09:51:513
29805060,0irq/28-eth0-rx-24644-21rt-features11:31:573
29805060,0irq/28-eth0-rx-19758-21seq10:36:123
149960,0migration/025014-21munin-node07:51:590
73689955,0cyclictest0-21swapper/212:35:342
73689955,0cyclictest0-21swapper/210:59:242
73689955,0cyclictest0-21swapper/209:40:342
73689955,0cyclictest0-21swapper/209:33:382
73679955,0cyclictest0-21swapper/112:17:151
73679955,0cyclictest0-21swapper/109:58:121
73679955,0cyclictest0-21swapper/109:29:591
73679950,0cyclictest0-21swapper/112:24:211
73679950,0cyclictest0-21swapper/111:23:291
73679950,0cyclictest0-21swapper/109:24:281
73669950,0cyclictest0-21swapper/011:34:540
4150,0ktimersoftd/00-21swapper/011:19:080
4150,0ktimersoftd/00-21swapper/010:32:060
4150,0ktimersoftd/00-21swapper/008:41:570
339950,0migration/3971-21taskset11:37:003
339950,0migration/39272-21latency11:41:523
339950,0migration/37742-21kthreadcore08:26:543
339950,0migration/36583-21kthreadcore09:31:513
339950,0migration/35725-21munin-node09:11:523
339950,0migration/34663-21latency11:01:513
339950,0migration/330899-21kthreadcore09:26:533
339950,0migration/330734-21sh11:01:233
339950,0migration/327107-21munin-node08:41:503
339950,0migration/326387-21kthreadcore11:16:533
339950,0migration/324540-21kthreadcore07:31:513
339950,0migration/32397-21kthreadcore08:46:523
339950,0migration/323347-21fschecks_count12:11:493
339950,0migration/32317-21kthreadcore12:16:543
339950,0migration/322277-21munin-node08:16:473
339950,0migration/321553-21kthreadcore09:21:523
339950,0migration/318829-21latency_hist09:21:363
339950,0migration/318575-21kthreadcore09:36:533
339950,0migration/316819-21kthreadcore12:06:533
339950,0migration/316242-21switchtime12:42:003
339950,0migration/316187-21latency_hist12:26:363
339950,0migration/312837-21munin-node07:46:503
329950,0watchdog/38371-21ssh10:09:473
329950,0watchdog/329228-21diskstats10:41:473
329950,0watchdog/32916-21munin-node10:26:473
329950,0watchdog/328341-21sed09:01:553
329950,0watchdog/316124-21if_eth008:11:503
29815050,0irq/29-eth0-tx-7603-21tail07:21:460
29815050,0irq/29-eth0-tx-25722-21munin-node07:56:520
29815050,0irq/29-eth0-tx-18992-21ssh09:21:440
29815050,0irq/29-eth0-tx-14803-21munin-node07:26:580
29815050,0irq/29-eth0-tx-0-21swapper/009:11:470
29815050,0irq/29-eth0-tx-0-21swapper/009:04:140
29815050,0irq/29-eth0-tx-0-21swapper/007:36:550
29805050,0irq/28-eth0-rx-970-21cut11:21:473
29805050,0irq/28-eth0-rx-31324-21ssh10:02:533
29805050,0irq/28-eth0-rx-29355-21cut10:21:533
29805050,0irq/28-eth0-rx-21021-21perl10:36:503
29805050,0irq/28-eth0-rx-19569-21kthreadcore10:16:533
29805050,0irq/28-eth0-rx-16002-21chrt11:11:433
29805050,0irq/28-eth0-rx-0-21swapper/312:47:193
29805050,0irq/28-eth0-rx-0-21swapper/312:31:543
29805050,0irq/28-eth0-rx-0-21swapper/312:21:473
29805050,0irq/28-eth0-rx-0-21swapper/311:51:173
29805050,0irq/28-eth0-rx-0-21swapper/311:30:433
29805050,0irq/28-eth0-rx-0-21swapper/311:07:003
29805050,0irq/28-eth0-rx-0-21swapper/310:48:043
29805050,0irq/28-eth0-rx-0-21swapper/310:14:473
29805050,0irq/28-eth0-rx-0-21swapper/309:57:293
249950,0watchdog/20-21swapper/211:16:472
19150,0ktimersoftd/10-21swapper/112:12:311
179950,0migration/14596-21sh11:59:481
179950,0migration/132565-21kthreadcore11:36:531
179950,0migration/128182-21sendmail_mailtr07:31:551
179950,0migration/126987-21kthreadcore10:56:531
179950,0migration/118871-21sh11:47:391
179950,0migration/11857-21kthreadcore09:46:531
179950,0migration/118390-21kthreadcore08:11:531
149950,0migration/07545-21taskset08:05:520
149950,0migration/05359-21sh09:47:430
149950,0migration/04848-21kthreadcore10:26:530
149950,0migration/04592-21kthreadcore11:01:510
149950,0migration/03447-21kthreadcore12:36:540
149950,0migration/032345-21kthreadcore09:06:520
149950,0migration/032287-21ksmtuned12:34:030
149950,0migration/031684-21kthreadcore08:21:520
149950,0migration/028232-21fschecks_count09:26:490
149950,0migration/027393-21kthreadcore09:41:530
149950,0migration/025341-21sh10:18:570
149950,0migration/024017-21kthreadcore08:16:530
149950,0migration/022832-21unixbench-2d12:27:000
149950,0migration/021815-21latency_hist09:41:350
149950,0migration/017713-21taskset11:30:430
149950,0migration/016798-21munin-node08:56:530
149950,0migration/016095-21sh11:11:480
149950,0migration/015652-21irqrtprio12:06:520
149950,0migration/015114-21irqcore10:51:510
149950,0migration/012533-21kthreadcore12:41:530
149950,0migration/011434-21munin-node07:46:460
8305040,0irq/26-0000:00:0-21swapper/210:41:362
73689944,0cyclictest0-21swapper/210:52:002
73689943,0cyclictest7428-21munin-node11:06:572
73689943,0cyclictest6185-21awk10:46:502
73689943,0cyclictest5376-21awk08:26:512
73689943,0cyclictest3571-21lldpd12:04:242
73689943,0cyclictest3571-21lldpd11:06:242
73689943,0cyclictest3571-21lldpd10:28:542
73689943,0cyclictest3571-21lldpd09:27:232
73689943,0cyclictest3571-21lldpd09:15:232
73689943,0cyclictest3524-21snmpd08:38:492
73689943,0cyclictest3524-21snmpd08:17:182
73689943,0cyclictest3524-21snmpd07:28:482
73689943,0cyclictest30729-21awk09:06:502
73689943,0cyclictest21685-21awk11:51:512
73689943,0cyclictest1960-21awk11:21:502
73689943,0cyclictest19123-21awk10:16:512
73689943,0cyclictest1766-21awk08:46:502
73689943,0cyclictest17315-21awk12:26:502
73689943,0cyclictest15239-21awk12:06:512
73689943,0cyclictest13064-21awk11:46:502
73689943,0cyclictest12725-21awk08:31:512
73689943,0cyclictest12382-21awk07:46:492
73689940,0cyclictest3234-21munin-node11:41:472
73679943,0cyclictest8273-21awk09:51:511
73679943,0cyclictest6751-21awk12:01:511
73679943,0cyclictest3571-21lldpd09:06:231
73679943,0cyclictest3571-21lldpd07:40:211
73679943,0cyclictest3524-21snmpd10:34:051
73679943,0cyclictest3524-21snmpd09:43:041
73679943,0cyclictest19377-21awk11:31:511
73679943,0cyclictest19075-21awk10:16:511
73679943,0cyclictest15869-21awk07:26:521
73679943,0cyclictest12853-21awk09:16:511
73669944,0cyclictest0-21swapper/010:58:480
73669943,0cyclictest8952-21awk08:06:490
73669943,0cyclictest8483-21awk11:06:500
73669943,0cyclictest5281-21awk09:31:490
73669943,0cyclictest3571-21lldpd10:40:230
73669943,0cyclictest3571-21lldpd09:55:540
73669943,0cyclictest3524-21snmpd11:40:210
73669943,0cyclictest3250-21irqbalance12:22:130
73669943,0cyclictest3250-21irqbalance12:18:230
73669943,0cyclictest3250-21irqbalance11:42:020
73669943,0cyclictest3250-21irqbalance10:42:220
73669943,0cyclictest3250-21irqbalance10:07:020
73669943,0cyclictest3250-21irqbalance08:52:520
73669943,0cyclictest3250-21irqbalance08:52:520
73669943,0cyclictest3250-21irqbalance08:37:020
73669943,0cyclictest3250-21irqbalance08:32:020
73669943,0cyclictest3250-21irqbalance08:12:220
73669943,0cyclictest22038-21kworker/0:211:47:350
73669943,0cyclictest16614-21gltestperf09:56:500
339940,0migration/39150-21kthreadcore07:41:533
339940,0migration/331156-21kthreadcore08:21:523
339940,0migration/326989-21irqcore07:56:523
339940,0migration/312919-21irqcore08:31:523
329940,0watchdog/37120-21ssh12:36:553
329940,0watchdog/329195-21munin-node07:36:463
329940,0watchdog/30-21swapper/310:53:553
329940,0watchdog/30-21swapper/308:06:503
329940,0watchdog/30-21swapper/307:26:543
29815040,0irq/29-eth0-tx-0-21swapper/212:11:572
29815040,0irq/29-eth0-tx-0-21swapper/211:36:552
29815040,0irq/29-eth0-tx-0-21swapper/210:11:422
29815040,0irq/29-eth0-tx-0-21swapper/210:08:292
29815040,0irq/29-eth0-tx-0-21swapper/209:48:592
29815040,0irq/29-eth0-tx-0-21swapper/209:25:582
29815040,0irq/29-eth0-tx-0-21swapper/009:16:470
29815040,0irq/29-eth0-tx-0-21swapper/008:46:560
29815040,0irq/29-eth0-tx-0-21swapper/007:31:500
29805040,0irq/28-eth0-rx-0-21swapper/312:03:183
29805040,0irq/28-eth0-rx-0-21swapper/311:56:493
29805040,0irq/28-eth0-rx-0-21swapper/309:44:593
29805040,0irq/28-eth0-rx-0-21swapper/308:36:543
29805040,0irq/28-eth0-rx-0-21swapper/307:51:523
249940,0watchdog/20-21swapper/211:56:552
249940,0watchdog/20-21swapper/210:01:472
249940,0watchdog/20-21swapper/208:06:502
179940,0migration/17479-21taskset08:05:051
179940,0migration/14242-21kthreadcore12:36:541
179940,0migration/132685-21sh11:20:451
179940,0migration/131989-21fschecks_time11:01:471
179940,0migration/129417-21kthreadcore10:21:531
179940,0migration/128203-21kthreadcore12:31:531
179940,0migration/127795-21kthreadcore10:01:511
179940,0migration/124580-21kthreadcore11:51:541
179940,0migration/12332-21kthreadcore08:46:521
179940,0migration/122657-21kthreadcore07:51:511
179940,0migration/115886-21fschecks_count08:56:491
179940,0migration/114404-21irqcore09:36:511
179940,0migration/114348-21kthreadcore12:41:541
179940,0migration/111463-21sshd09:15:271
179940,0migration/110174-21fschecks_count11:26:501
169940,0watchdog/19555-21kthreadcore08:06:501
169940,0watchdog/12994-21netstat08:21:541
169940,0watchdog/125918-21munin-node08:41:461
169940,0watchdog/123672-21ssh12:28:591
169940,0watchdog/122347-21sensors11:11:591
169940,0watchdog/120192-21ssh10:36:471
169940,0watchdog/111059-21taskset08:28:421
149940,0migration/09084-21kthreadcore08:26:540
149940,0migration/03708-21runrttasks11:57:200
149940,0migration/032264-21runrttasks10:05:280
149940,0migration/023196-21kthreadcore11:51:530
149940,0migration/022842-21aten_r1power_fr12:11:470
8305030,0irq/26-0000:00:0-21swapper/210:31:362
8305030,0irq/26-0000:00:0-21swapper/207:41:352
73689933,0cyclictest3571-21lldpd08:59:522
73689932,0cyclictest3571-21lldpd08:21:532
73689932,0cyclictest27713-21awk10:21:512
73689932,0cyclictest16178-21aten_r1power_vo11:11:492
73689932,0cyclictest15347-21tr08:11:472
73689932,0cyclictest11095-21tail07:21:532
73689932,0cyclictest0-21swapper/209:41:532
73689930,0cyclictest18916-21df_inode07:51:472
73679932,0cyclictest9261-21sort08:51:521
73679932,0cyclictest9261-21sort08:51:521
73679932,0cyclictest7704-21stty07:21:471
73679932,0cyclictest6754-21grep07:41:521
73679932,0cyclictest5105-21munin-node10:46:581
73679932,0cyclictest30779-21awk09:06:501
73679932,0cyclictest20132-21sensors10:51:571
73679932,0cyclictest19558-21awk12:46:511
73679932,0cyclictest18271-21sadc07:51:351
73679932,0cyclictest1590-21awk10:06:491
73679930,0cyclictest28896-21diskmemload10:41:451
73679930,0cyclictest19637-21perl08:36:491
73669933,0cyclictest6535-21kworker/0:207:41:540
73669933,0cyclictest22038-21kworker/0:212:46:420
73669933,0cyclictest22038-21kworker/0:211:21:490
73669933,0cyclictest22038-21kworker/0:210:46:510
73669933,0cyclictest22038-21kworker/0:210:21:450
73669932,0cyclictest10492-21awk10:11:500
329930,0watchdog/30-21swapper/308:57:193
29815030,0irq/29-eth0-tx-0-21swapper/212:46:372
29815030,0irq/29-eth0-tx-0-21swapper/212:36:422
29805030,0irq/28-eth0-rx-0-21swapper/308:51:473
29805030,0irq/28-eth0-rx-0-21swapper/308:51:473
29805030,0irq/28-eth0-rx-0-21swapper/307:21:473
249930,0watchdog/20-21swapper/211:31:512
249930,0watchdog/20-21swapper/210:36:552
249930,0watchdog/20-21swapper/209:01:552
249930,0watchdog/20-21swapper/208:41:462
249930,0watchdog/20-21swapper/207:31:582
179930,0migration/122293-21aten2.4-expect08:16:471
179930,0migration/115601-21kthreadcore08:31:531
169930,0watchdog/128303-21kthreadcore07:56:541
169930,0watchdog/118752-21diskmemload10:11:391
169930,0watchdog/10-21swapper/110:28:071
169930,0watchdog/10-21swapper/109:31:431
149930,0migration/05536-21sh12:01:450
73689921,0cyclictest8010-21cat08:51:362
73689921,0cyclictest8010-21cat08:51:362
73689921,0cyclictest29312-21aten_r1power_po07:36:472
249920,0watchdog/20-21swapper/209:16:432
249920,0watchdog/20-21swapper/207:56:382
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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