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2026-07-28 - 12:48
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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 all highest latencies:
System rack1slot2.osadl.org (updated Tue Jul 28, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2369125139,0sleep20-21swapper/219:23:512
3046924434,0sleep30-21swapper/319:26:523
3034423525,0sleep10-21swapper/119:25:221
3046123127,0sleep00-21swapper/019:26:450
35160,0ktimersoftd/30-21swapper/321:30:573
339960,0migration/37054-21sh23:56:133
339960,0migration/32175-21sh22:58:273
307199960,0cyclictest0-21swapper/222:23:222
307039966,0cyclictest22704-21kworker/0:121:33:290
29805060,0irq/28-eth0-rx-28239-21ssh00:47:273
29805060,0irq/28-eth0-rx-17856-21perl20:48:593
249960,0watchdog/21712-21kthreadcore19:29:042
179960,0migration/11064-21sh00:29:091
149960,0migration/025733-21sh00:25:240
149960,0migration/025668-21idleruntime22:34:020
149960,0migration/018931-21kthreadcore21:09:040
149960,0migration/014703-21cpuspeed_turbos22:08:580
339950,0migration/39410-21kthreadcore20:19:053
339950,0migration/38079-21latency_hist23:58:463
339950,0migration/36302-21kthreadcore21:44:043
339950,0migration/34932-21munin-node00:34:023
339950,0migration/34696-21kthreadcore20:39:033
339950,0migration/34343-21kthreadcore19:54:033
339950,0migration/33488-21sh22:39:023
339950,0migration/332533-21kthreadcore21:39:043
339950,0migration/332267-21kthreadcore19:49:043
339950,0migration/331851-21kthreadcore23:14:053
339950,0migration/331676-21cpuspeed_turbos20:58:573
339950,0migration/329070-21munin-node22:14:103
339950,0migration/326991-21kthreadcore22:34:043
339950,0migration/326728-21munin-node21:14:073
339950,0migration/324530-21munin-node23:49:033
339950,0migration/324032-21munin-node22:49:073
339950,0migration/322167-21kthreadcore19:44:023
339950,0migration/318781-21kthreadcore23:44:063
339950,0migration/317809-21taskset00:04:023
339950,0migration/312237-21munin-node23:04:003
339950,0migration/310312-21kthreadcore00:54:053
339950,0migration/310312-21kthreadcore00:54:053
329950,0watchdog/317767-21if_err_eth020:04:003
329950,0watchdog/30-21swapper/323:08:573
329950,0watchdog/30-21swapper/300:24:013
307199955,0cyclictest9838-21diskmemload22:54:262
307199955,0cyclictest0-21swapper/200:56:372
307199955,0cyclictest0-21swapper/200:56:372
307199950,0cyclictest0-21swapper/223:01:412
307199950,0cyclictest0-21swapper/220:44:122
307199950,0cyclictest0-21swapper/200:42:442
307199950,0cyclictest0-21swapper/200:23:212
307139950,0cyclictest0-21swapper/121:41:071
307039955,0cyclictest22704-21kworker/0:121:28:290
307039955,0cyclictest22704-21kworker/0:121:19:330
307039955,0cyclictest22704-21kworker/0:121:05:190
307039955,0cyclictest22704-21kworker/0:120:40:430
307039955,0cyclictest22704-21kworker/0:120:34:040
307039955,0cyclictest22704-21kworker/0:120:16:200
307039955,0cyclictest22704-21kworker/0:120:08:560
307039955,0cyclictest22704-21kworker/0:120:03:500
307039955,0cyclictest22704-21kworker/0:119:53:540
307039955,0cyclictest22704-21kworker/0:119:48:560
307039955,0cyclictest22704-21kworker/0:119:45:260
307039955,0cyclictest22704-21kworker/0:119:35:380
307039955,0cyclictest22704-21kworker/0:119:30:500
307039955,0cyclictest10058-21kworker/0:023:48:250
307039955,0cyclictest10058-21kworker/0:023:39:030
307039955,0cyclictest10058-21kworker/0:022:58:590
307039955,0cyclictest10058-21kworker/0:022:52:270
307039955,0cyclictest10058-21kworker/0:022:45:150
307039955,0cyclictest10058-21kworker/0:022:24:010
307039955,0cyclictest10058-21kworker/0:022:23:010
307039955,0cyclictest10058-21kworker/0:022:14:210
307039955,0cyclictest10058-21kworker/0:022:05:050
307039955,0cyclictest10058-21kworker/0:021:59:490
307039955,0cyclictest10058-21kworker/0:021:54:050
307039955,0cyclictest10058-21kworker/0:000:43:590
307039955,0cyclictest10058-21kworker/0:000:35:470
307039955,0cyclictest10058-21kworker/0:000:14:090
307039955,0cyclictest10058-21kworker/0:000:07:210
307039955,0cyclictest0-21swapper/000:29:020
307039954,0cyclictest17540-21irqrtprio22:29:020
29815050,0irq/29-eth0-tx-5022-21chrt23:35:372
29815050,0irq/29-eth0-tx-31418-21cut21:59:022
29815050,0irq/29-eth0-tx-29356-21sed00:49:002
29815050,0irq/29-eth0-tx-27164-21munin-node00:29:022
29815050,0irq/29-eth0-tx-24161-21munin-node20:54:062
29815050,0irq/29-eth0-tx-19793-21munin-node23:09:042
29815050,0irq/29-eth0-tx-13233-21ssh23:23:582
29815050,0irq/29-eth0-tx-0-21swapper/223:03:582
29815050,0irq/29-eth0-tx-0-21swapper/200:14:282
29805050,0irq/28-eth0-rx-7765-21cut22:04:013
29805050,0irq/28-eth0-rx-5025-21fschecks_count23:19:003
29805050,0irq/28-eth0-rx-322-21kthreadcore00:49:053
29805050,0irq/28-eth0-rx-3000-21kthreadcore00:14:053
29805050,0irq/28-eth0-rx-20711-21python22:09:083
29805050,0irq/28-eth0-rx-20549-21kthreadcore22:29:033
29805050,0irq/28-eth0-rx-0-21swapper/323:43:123
29805050,0irq/28-eth0-rx-0-21swapper/323:34:053
29805050,0irq/28-eth0-rx-0-21swapper/323:30:093
29805050,0irq/28-eth0-rx-0-21swapper/323:24:043
29805050,0irq/28-eth0-rx-0-21swapper/322:58:483
29805050,0irq/28-eth0-rx-0-21swapper/322:25:053
29805050,0irq/28-eth0-rx-0-21swapper/322:19:133
29805050,0irq/28-eth0-rx-0-21swapper/321:49:033
29805050,0irq/28-eth0-rx-0-21swapper/321:19:053
29805050,0irq/28-eth0-rx-0-21swapper/320:44:003
29805050,0irq/28-eth0-rx-0-21swapper/319:39:103
29805050,0irq/28-eth0-rx-0-21swapper/300:09:043
27150,0ktimersoftd/20-21swapper/200:09:102
259950,0migration/2448-21kthreadcore20:34:042
259950,0migration/220195-21sh21:52:102
249950,0watchdog/27118-21sed22:04:012
249950,0watchdog/229917-21timerandwakeup23:49:132
249950,0watchdog/223964-21ssh00:05:532
249950,0watchdog/223229-21cut22:14:012
249950,0watchdog/216474-21sed23:44:052
249950,0watchdog/212793-21kthreadcore22:44:052
19150,0ktimersoftd/10-21swapper/100:09:101
179950,0migration/126813-21taskset19:44:161
179950,0migration/122421-21munin-node22:29:071
179950,0migration/120592-21munin-node00:43:591
179950,0migration/118424-21kthreadcore20:04:021
169950,0watchdog/11797-21entropy00:14:011
169950,0watchdog/115370-21hostname22:09:011
149950,0migration/07341-21kthreadcore21:44:050
149950,0migration/06128-21timerandwakeup23:54:130
149950,0migration/05983-21latency_hist20:18:450
149950,0migration/0566-21taskset00:12:240
149950,0migration/04561-21kthreadcore20:59:030
149950,0migration/028894-21latency_hist00:48:470
149950,0migration/028824-21fschecks_count23:14:010
149950,0migration/027995-21kthreadcore23:49:060
149950,0migration/027359-21kthreadcore20:54:040
149950,0migration/025716-21kthreadcore23:29:050
149950,0migration/022786-21kthreadcore21:34:050
149950,0migration/021912-21irqrtprio20:29:040
149950,0migration/021660-21hwlatdetect21:14:020
149950,0migration/021555-21kthreadcore20:49:040
149950,0migration/021303-21irqrtprio23:09:020
149950,0migration/020614-21sh23:26:350
149950,0migration/017022-21kthreadcore19:39:020
149950,0migration/016542-21munin-node00:19:130
149950,0migration/015940-21sendmail_mailqu20:44:090
149950,0migration/014207-21munin-node23:59:060
149950,0migration/012850-21fschecks_time00:39:010
149950,0migration/012432-21aten_r1power_fr21:48:570
149950,0migration/011669-21kthreadcore19:59:040
8305040,0irq/26-0000:00:26058-21latency19:44:032
8305040,0irq/26-0000:00:0-21swapper/220:58:452
339940,0migration/39800-21kthreadcore19:34:343
339940,0migration/310918-21irqrtprio22:44:043
329940,0watchdog/331306-21kthreadcore00:29:053
329940,0watchdog/30-21swapper/321:09:043
329940,0watchdog/30-21swapper/319:29:043
329940,0watchdog/30-21swapper/300:39:053
307199943,0cyclictest9362-21awk23:59:022
307199943,0cyclictest3571-21lldpd23:39:162
307199943,0cyclictest3571-21lldpd21:29:432
307199943,0cyclictest3571-21lldpd00:44:182
307199943,0cyclictest3250-21irqbalance21:43:522
307199943,0cyclictest3250-21irqbalance21:03:522
307199943,0cyclictest28390-21awk21:39:012
307139944,0cyclictest0-21swapper/123:50:151
307139943,0cyclictest7482-21awk23:39:011
307139943,0cyclictest3571-21lldpd22:04:431
307139943,0cyclictest3571-21lldpd00:40:181
307139943,0cyclictest21562-21awk20:29:021
307139943,0cyclictest20846-21awk23:09:011
307139943,0cyclictest19703-21awk00:24:031
307139943,0cyclictest14062-21awk19:38:591
307139943,0cyclictest12368-21awk23:04:021
307139943,0cyclictest10780-21awk20:44:021
307039944,0cyclictest22704-21kworker/0:121:38:490
307039944,0cyclictest22704-21kworker/0:120:23:520
307039944,0cyclictest10058-21kworker/0:023:34:130
307039944,0cyclictest10058-21kworker/0:023:18:490
307039944,0cyclictest10058-21kworker/0:023:03:490
307039944,0cyclictest10058-21kworker/0:022:53:530
307039944,0cyclictest10058-21kworker/0:022:39:490
307039944,0cyclictest10058-21kworker/0:000:55:250
307039944,0cyclictest10058-21kworker/0:000:55:250
29815040,0irq/29-eth0-tx-5051-21grep23:19:002
29815040,0irq/29-eth0-tx-3307-21ssh00:33:512
29815040,0irq/29-eth0-tx-18350-21diskstats22:49:002
29815040,0irq/29-eth0-tx-0-21swapper/223:53:512
29815040,0irq/29-eth0-tx-0-21swapper/223:13:502
29815040,0irq/29-eth0-tx-0-21swapper/222:28:462
29815040,0irq/29-eth0-tx-0-21swapper/222:08:472
29815040,0irq/29-eth0-tx-0-21swapper/221:54:022
29815040,0irq/29-eth0-tx-0-21swapper/221:34:042
29815040,0irq/29-eth0-tx-0-21swapper/221:19:082
29815040,0irq/29-eth0-tx-0-21swapper/200:23:542
29805040,0irq/28-eth0-rx-4341-21sh22:00:153
29805040,0irq/28-eth0-rx-0-21swapper/321:54:033
29805040,0irq/28-eth0-rx-0-21swapper/321:34:323
29805040,0irq/28-eth0-rx-0-21swapper/321:24:043
29805040,0irq/28-eth0-rx-0-21swapper/320:34:063
29805040,0irq/28-eth0-rx-0-21swapper/320:28:593
29805040,0irq/28-eth0-rx-0-21swapper/300:18:543
259940,0migration/27404-21kthreadcore20:39:042
259940,0migration/26317-21fschecks_count19:34:302
259940,0migration/25953-21kthreadcore22:39:032
259940,0migration/25939-21kthreadcore19:54:042
259940,0migration/229666-21kthreadcore19:49:032
259940,0migration/225624-21kthreadcore20:29:052
259940,0migration/223742-21kthreadcore23:29:052
259940,0migration/222582-21kthreadcore21:14:042
259940,0migration/218987-21munin-node19:39:042
259940,0migration/218232-21irqcore20:49:022
259940,0migration/218220-21kthreadcore21:09:032
259940,0migration/214152-21fschecks_time20:23:592
249940,0watchdog/23205-21diskstats21:24:002
249940,0watchdog/20-21swapper/222:34:052
249940,0watchdog/20-21swapper/222:24:052
249940,0watchdog/20-21swapper/220:19:042
249940,0watchdog/20-21swapper/219:59:042
179940,0migration/18783-21kthreadcore19:34:341
179940,0migration/15345-21munin-node00:53:581
179940,0migration/15345-21munin-node00:53:581
179940,0migration/15125-21munin-node20:14:131
179940,0migration/131098-21ksmtuned20:58:111
179940,0migration/130971-21fschecks_time23:34:001
179940,0migration/122802-21kthreadcore22:49:051
179940,0migration/121760-21munin-node23:28:591
179940,0migration/121586-21fschecks_count21:53:591
179940,0migration/117543-21fschecks_time00:04:001
179940,0migration/114983-21kthreadcore00:19:041
179940,0migration/11429-21kthreadcore20:59:021
179940,0migration/112914-21sshd20:22:301
179940,0migration/111447-21kthreadcore22:24:041
179940,0migration/110144-21aten_r1power_en21:28:571
169940,0watchdog/17776-21kthreadcore19:54:041
169940,0watchdog/14550-21ssh23:18:531
169940,0watchdog/14512-21perl21:44:011
169940,0watchdog/13524-21snmpd23:24:011
169940,0watchdog/130939-21kthreadcore19:49:041
169940,0watchdog/130849-21kthreadcore22:54:051
169940,0watchdog/12741-21sh23:14:211
169940,0watchdog/123226-21grep22:14:011
169940,0watchdog/119878-21ssh21:51:171
169940,0watchdog/119409-21perl21:34:001
169940,0watchdog/110429-21ssh23:02:091
169940,0watchdog/11020-21cut00:49:051
169940,0watchdog/10-21swapper/123:47:491
169940,0watchdog/10-21swapper/122:44:051
169940,0watchdog/10-21swapper/122:34:051
169940,0watchdog/10-21swapper/121:19:041
169940,0watchdog/10-21swapper/121:07:361
169940,0watchdog/10-21swapper/119:59:081
8305030,0irq/26-0000:00:0-21swapper/220:08:452
329930,0watchdog/30-21swapper/319:59:003
307199930,0cyclictest0-21swapper/220:14:012
307139932,0cyclictest32429-21awk22:19:011
307139932,0cyclictest31557-21uniq19:29:001
307139932,0cyclictest27469-21kthreadcore20:09:031
307139932,0cyclictest19453-21sensors20:24:071
307139930,0cyclictest3110-21df21:24:001
307139930,0cyclictest1682-21perl22:38:591
307139930,0cyclictest0-21swapper/123:59:051
29805030,0irq/28-eth0-rx-0-21swapper/321:03:503
29805030,0irq/28-eth0-rx-0-21swapper/320:54:013
29805030,0irq/28-eth0-rx-0-21swapper/320:13:583
29805030,0irq/28-eth0-rx-0-21swapper/320:08:563
249930,0watchdog/20-21swapper/220:04:002
169930,0watchdog/10-21swapper/122:01:051
169930,0watchdog/10-21swapper/121:13:521
169930,0watchdog/10-21swapper/121:08:481
169930,0watchdog/10-21swapper/120:48:561
169930,0watchdog/10-21swapper/120:33:561
169930,0watchdog/10-21swapper/100:34:011
329920,0watchdog/30-21swapper/320:23:483
307139920,0cyclictest0-21swapper/123:53:491
307139920,0cyclictest0-21swapper/120:38:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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