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2026-04-09 - 03:07
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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 highest latencies:
System rack1slot2.osadl.org (updated Thu Apr 09, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
441525041,0sleep10-21swapper/119:15:561
439523526,0sleep30-21swapper/319:15:423
439923228,0sleep20-21swapper/219:15:452
463723127,0sleep00-21swapper/019:18:270
48169976,0cyclictest0-21swapper/000:29:450
339970,0migration/38709-21sh21:31:133
8305060,0irq/26-0000:00:11124-21awk00:04:452
339960,0migration/37467-21sh23:40:553
339960,0migration/332331-21sh21:26:373
339960,0migration/331819-21sh23:37:403
339960,0migration/33021-21sh21:47:263
339960,0migration/326401-21sh23:54:523
339960,0migration/326255-21sh21:41:033
339960,0migration/321037-21sh23:13:153
339960,0migration/318794-21mdstat21:55:033
339960,0migration/317115-21sh23:48:473
29815060,0irq/29-eth0-tx-9098-21munin-node21:14:550
29805060,0irq/28-eth0-rx-9486-21perl22:29:573
179960,0migration/114754-21munin-node22:30:031
149960,0migration/03540-21kthreadcore19:39:590
149960,0migration/024355-21latency_hist00:49:450
149960,0migration/01111-21taskset22:42:410
149960,0migration/011038-21sh21:50:310
8305050,0irq/26-0000:00:17015-21latency_hist22:34:442
48199955,0cyclictest0-21swapper/200:40:112
48199955,0cyclictest0-21swapper/200:40:112
48199950,0cyclictest0-21swapper/223:00:332
48179955,0cyclictest0-21swapper/123:25:321
48179955,0cyclictest0-21swapper/123:05:021
48179955,0cyclictest0-21swapper/122:45:391
48179955,0cyclictest0-21swapper/122:01:111
48179955,0cyclictest0-21swapper/121:31:331
48179955,0cyclictest0-21swapper/100:33:291
48179954,0cyclictest3524-21snmpd21:04:431
48179950,0cyclictest0-21swapper/122:29:341
48169955,0cyclictest0-21swapper/023:22:350
48169955,0cyclictest0-21swapper/022:37:580
48169955,0cyclictest0-21swapper/000:00:350
48169950,0cyclictest0-21swapper/022:02:390
339950,0migration/38430-21munin-node21:10:093
339950,0migration/37226-21diskmemload00:39:453
339950,0migration/37226-21diskmemload00:39:453
339950,0migration/36246-21taskset20:04:583
339950,0migration/35232-21taskset22:07:163
339950,0migration/34268-21kthreadcore22:25:023
339950,0migration/33706-21irqrtprio22:45:013
339950,0migration/332003-21if_err_eth000:35:013
339950,0migration/331527-21munin-node20:44:583
339950,0migration/328579-21kthreadcore20:20:013
339950,0migration/325524-21kthreadcore21:00:013
339950,0migration/324511-21kthreadcore19:30:013
339950,0migration/320541-21sh00:25:463
339950,0migration/318197-21kthreadcore19:50:003
339950,0migration/317436-21aten_r1power_vo22:34:583
339950,0migration/314312-21kthreadcore20:30:013
339950,0migration/31375-21kthreadcore20:00:003
339950,0migration/312223-21taskset20:53:223
339950,0migration/310378-21irqcore21:14:593
329950,0watchdog/36455-21aten2.4-expect22:09:553
329950,0watchdog/331831-21latency22:40:033
329950,0watchdog/320382-21perl22:55:033
329950,0watchdog/310138-21sh00:02:043
329950,0watchdog/30-21swapper/320:15:033
29815050,0irq/29-eth0-tx-9063-21df_inode22:29:562
29815050,0irq/29-eth0-tx-8715-21munin-node19:45:040
29815050,0irq/29-eth0-tx-27534-21ssh21:44:272
29815050,0irq/29-eth0-tx-22832-21ssh21:20:080
29815050,0irq/29-eth0-tx-1485-21ssh21:29:532
29815050,0irq/29-eth0-tx-110482sleep221:50:322
29815050,0irq/29-eth0-tx-10445-21munin-node21:34:592
29815050,0irq/29-eth0-tx-0-21swapper/222:12:302
29815050,0irq/29-eth0-tx-0-21swapper/200:29:472
29815050,0irq/29-eth0-tx-0-21swapper/200:19:582
29815050,0irq/29-eth0-tx-0-21swapper/020:11:300
29815050,0irq/29-eth0-tx-0-21swapper/019:58:150
29805050,0irq/28-eth0-rx-9931-21kthreadcore00:20:013
29805050,0irq/28-eth0-rx-5187-21sh23:21:033
29805050,0irq/28-eth0-rx-24813-21if_eth022:20:003
29805050,0irq/28-eth0-rx-19185-21taskset00:08:193
29805050,0irq/28-eth0-rx-17712-21kthreadcore00:45:023
29805050,0irq/28-eth0-rx-13507-21unixbench_singl23:25:093
29805050,0irq/28-eth0-rx-0-21swapper/323:50:013
29805050,0irq/28-eth0-rx-0-21swapper/323:30:103
29805050,0irq/28-eth0-rx-0-21swapper/323:04:563
29805050,0irq/28-eth0-rx-0-21swapper/323:02:013
29805050,0irq/28-eth0-rx-0-21swapper/322:49:473
29805050,0irq/28-eth0-rx-0-21swapper/322:19:013
29805050,0irq/28-eth0-rx-0-21swapper/322:00:013
29805050,0irq/28-eth0-rx-0-21swapper/321:49:553
29805050,0irq/28-eth0-rx-0-21swapper/321:39:123
29805050,0irq/28-eth0-rx-0-21swapper/321:19:553
29805050,0irq/28-eth0-rx-0-21swapper/300:15:003
259950,0migration/24886-21kthreadcore21:10:012
259950,0migration/24045-21kthreadcore22:45:022
259950,0migration/229754-21sh23:18:302
259950,0migration/228628-21sh00:14:502
259950,0migration/225560-21kthreadcore22:20:022
259950,0migration/225241-21kthreadcore22:00:022
259950,0migration/222648-21sh00:45:172
259950,0migration/220649-21fschecks_time00:09:572
259950,0migration/220058-21kthreadcore22:15:022
259950,0migration/219908-21munin-node00:25:052
259950,0migration/219024-21kthreadcore23:10:052
259950,0migration/216489-21sh21:19:552
249950,0watchdog/213781-21iostat_ios20:54:592
179950,0migration/1703-21kthreadcore23:20:011
179950,0migration/13790-21kthreadcore19:39:591
179950,0migration/126758-21sh21:42:231
179950,0migration/123024-21sh23:32:171
179950,0migration/121216-21kthreadcore21:20:011
179950,0migration/119716-21idleruntime-cro00:09:451
179950,0migration/115965-21aten2.4-expect00:44:561
179950,0migration/110473-21kthreadcore20:50:021
149950,0migration/08411-21kernelversion23:25:000
149950,0migration/06976-21kthreadcore23:05:090
149950,0migration/05998-21fschecks_time20:04:570
149950,0migration/05416-21kthreadcore20:25:010
149950,0migration/05409-21kthreadcore23:40:020
149950,0migration/031007-21latency21:25:030
149950,0migration/030256-21latency_hist23:19:450
149950,0migration/03025-21irqrtprio21:30:010
149950,0migration/028076-21irqcore20:20:000
149950,0migration/025560-21kthreadcore00:10:020
149950,0migration/024099-21kthreadcore21:40:010
149950,0migration/020272-21fschecks_count20:59:570
149950,0migration/018658-21kthreadcore23:10:040
149950,0migration/016632-21kthreadcore19:25:010
149950,0migration/015951-21kthreadcore21:55:020
149950,0migration/015197-21timerwakeupswit22:30:080
149950,0migration/013698-21kthreadcore20:30:010
149950,0migration/01336-21sh23:56:510
149950,0migration/012673-21kthreadcore23:45:010
149950,0migration/011942-21sh00:20:480
48199943,0cyclictest3571-21lldpd20:32:532
48199943,0cyclictest3571-21lldpd20:15:532
48199943,0cyclictest3571-21lldpd19:49:522
48199943,0cyclictest3571-21lldpd19:45:522
48199943,0cyclictest3571-21lldpd19:30:212
48199943,0cyclictest3571-21lldpd19:24:522
48199943,0cyclictest25342-21awk23:35:002
48199943,0cyclictest0-21swapper/223:24:492
48179944,0cyclictest0-21swapper/123:54:421
48179944,0cyclictest0-21swapper/122:54:481
48179944,0cyclictest0-21swapper/122:37:361
48179943,0cyclictest8363-21awk00:40:011
48179943,0cyclictest8363-21awk00:40:011
48179943,0cyclictest5317-21awk21:49:591
48179943,0cyclictest3571-21lldpd23:43:561
48179943,0cyclictest3571-21lldpd23:36:261
48179943,0cyclictest3524-21snmpd19:34:261
48179943,0cyclictest32035-21awk00:35:011
48179943,0cyclictest31393-21awk19:59:571
48179943,0cyclictest20693-21awk20:14:591
48179943,0cyclictest13980-21awk21:55:001
48169944,0cyclictest27588-21kworker/0:020:50:290
48169944,0cyclictest27588-21kworker/0:020:43:510
48169944,0cyclictest27588-21kworker/0:020:15:130
48169944,0cyclictest27588-21kworker/0:019:38:210
48169943,0cyclictest8378-21awk00:40:010
48169943,0cyclictest8378-21awk00:40:010
48169943,0cyclictest3571-21lldpd23:00:250
48169943,0cyclictest3571-21lldpd22:57:550
48169943,0cyclictest3571-21lldpd22:25:250
48169943,0cyclictest3524-21snmpd23:37:290
48169943,0cyclictest3524-21snmpd23:30:140
48169943,0cyclictest31316-21awk22:05:000
48169943,0cyclictest28087-21awk21:05:000
48169943,0cyclictest18809-21awk23:49:580
48169943,0cyclictest17154-21awk20:35:000
48169943,0cyclictest16992-21awk19:49:580
48169943,0cyclictest12100-21awk22:49:590
48169942,0cyclictest20118-21kworker/0:222:13:210
48169941,0cyclictest0-21swapper/021:09:550
48169941,0cyclictest0-21swapper/019:29:540
339940,0migration/329515-21runrttasks20:40:063
339940,0migration/319236-21ksmtuned20:55:593
339940,0migration/312728-21kthreadcore19:45:023
329940,0watchdog/36314-21runrttasks21:06:273
329940,0watchdog/30-21swapper/319:19:553
29815040,0irq/29-eth0-tx-25882-21ssh22:39:482
29815040,0irq/29-eth0-tx-19574-21ssh22:54:572
29815040,0irq/29-eth0-tx-1935-21kthreadcore22:05:032
29815040,0irq/29-eth0-tx-10866-21ssh22:49:492
29815040,0irq/29-eth0-tx-0-21swapper/223:50:242
29815040,0irq/29-eth0-tx-0-21swapper/223:44:532
29815040,0irq/29-eth0-tx-0-21swapper/223:20:422
29815040,0irq/29-eth0-tx-0-21swapper/223:05:012
29815040,0irq/29-eth0-tx-0-21swapper/222:24:522
29815040,0irq/29-eth0-tx-0-21swapper/221:55:372
29815040,0irq/29-eth0-tx-0-21swapper/020:55:060
29815040,0irq/29-eth0-tx-0-21swapper/020:00:070
29805040,0irq/28-eth0-rx-30325-21kthreadcore19:35:013
29805040,0irq/28-eth0-rx-0-21swapper/323:15:073
29805040,0irq/28-eth0-rx-0-21swapper/300:29:583
29805040,0irq/28-eth0-rx-0-21swapper/300:09:553
259940,0migration/25383-21kthreadcore20:25:012
259940,0migration/25067-21aten_r1power_en19:19:532
259940,0migration/2365-21sensors_fan19:35:062
259940,0migration/23544-21kthreadcore23:40:022
259940,0migration/23199-21kthreadcore19:39:592
259940,0migration/231803-21irqrtprio19:59:592
259940,0migration/228936-21kthreadcore20:20:012
259940,0migration/22876-21kthreadcore20:45:012
259940,0migration/228158-21kthreadcore23:55:022
259940,0migration/227305-21kthreadcore21:25:022
259940,0migration/225616-21kthreadcore20:40:002
259940,0migration/223790-21fschecks_time19:54:572
259940,0migration/219262-21kthreadcore23:30:032
259940,0migration/215812-21kthreadcore20:10:012
259940,0migration/211781-21kthreadcore21:15:002
259940,0migration/211642-21cpuspeed_turbos00:04:562
249940,0watchdog/230897-21ssh00:34:482
249940,0watchdog/230569-21cut21:44:592
249940,0watchdog/220915-21kthreadcore20:35:032
249940,0watchdog/2121292sleep220:52:152
179940,0migration/131442-21kthreadcore22:40:031
179940,0migration/124071-21fschecks_time20:39:561
179940,0migration/123822-21aten_r1power_vo22:19:561
179940,0migration/123609-21fschecks_count19:54:561
179940,0migration/118204-21kthreadcore19:50:001
179940,0migration/118143-21kthreadcore20:35:021
179940,0migration/117298-21kthreadcore19:25:011
179940,0migration/115393-21df_abs22:14:561
179940,0migration/114839-21kthreadcore23:45:021
179940,0migration/11355-21kthreadcore23:00:031
179940,0migration/113053-21fschecks_count20:54:561
179940,0migration/112580-21kthreadcore21:35:011
179940,0migration/110824-21kthreadcore20:30:001
169940,0watchdog/15269-21cpuspeed_turbos19:19:551
169940,0watchdog/13392-21ssh00:16:121
169940,0watchdog/132524-21sed19:35:031
169940,0watchdog/12639-21ssh21:46:231
169940,0watchdog/116075-21diskmemload00:28:441
169940,0watchdog/10-21swapper/123:10:031
169940,0watchdog/10-21swapper/122:11:391
169940,0watchdog/10-21swapper/121:25:031
149940,0migration/07457-21kthreadcore22:45:030
149940,0migration/05086-21aten2.4-expect19:19:530
149940,0migration/03784-21kthreadcore20:45:010
149940,0migration/031446-21fschecks_count00:34:590
149940,0migration/030791-21kthreadcore21:44:590
149940,0migration/030036-21irqcore00:15:010
149940,0migration/028864-21kthreadcore22:20:030
8305030,0irq/26-0000:00:0-21swapper/220:04:432
48199932,0cyclictest366-21wc21:05:032
48179932,0cyclictest8869-21aten2.4-expect19:44:561
48179932,0cyclictest6336-21awk20:04:591
48179932,0cyclictest27595-21awk23:55:011
48179932,0cyclictest2693-21awk20:24:591
48179932,0cyclictest24993-21diskmemload23:15:011
48179932,0cyclictest17053-21kthreadcore20:10:011
48179932,0cyclictest15297-21sensors21:15:041
48169933,0cyclictest27588-21kworker/0:021:34:550
48169933,0cyclictest26921-21kworker/0:100:25:080
48169933,0cyclictest26921-21kworker/0:100:04:560
48169931,0cyclictest20118-21kworker/0:222:14:590
329930,0watchdog/30-21swapper/320:35:033
329930,0watchdog/30-21swapper/320:24:513
329930,0watchdog/30-21swapper/319:54:593
329930,0watchdog/30-21swapper/319:40:033
29805030,0irq/28-eth0-rx-0-21swapper/320:10:313
29805030,0irq/28-eth0-rx-0-21swapper/319:25:103
259930,0migration/219878-21aten_r1power_fr20:59:552
179930,0migration/16351-21kthreadcore21:10:021
179930,0migration/132282-21kthreadcore21:05:021
179930,0migration/110816-21latency_hist22:49:441
169930,0watchdog/10-21swapper/122:06:391
169930,0watchdog/10-21swapper/120:45:031
169930,0watchdog/10-21swapper/100:20:001
169930,0watchdog/10-21swapper/100:12:281
169930,0watchdog/10-21swapper/100:02:041
169920,0watchdog/10-21swapper/120:19:471
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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