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2026-05-27 - 02:44
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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 Wed May 27, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2480828278,0sleep20-21swapper/219:19:392
2510125041,0sleep30-21swapper/319:23:043
2482223624,0sleep00-21swapper/019:19:490
2506122925,0sleep10-21swapper/119:22:341
252279999,0cyclictest0-21swapper/221:24:192
4160,0ktimersoftd/00-21swapper/021:53:210
35160,0ktimersoftd/30-21swapper/300:36:183
339960,0migration/325595-21kthreadcore22:48:583
339960,0migration/319505-21sh22:25:273
339960,0migration/318503-21kthreadcore22:43:593
339960,0migration/317591-21sh22:06:273
29815060,0irq/29-eth0-tx-22249-21munin-node20:29:020
29815060,0irq/29-eth0-tx-11558-21munin-node20:44:010
29805060,0irq/28-eth0-rx-4140-21ssh23:33:443
29805060,0irq/28-eth0-rx-24831-21chrt00:20:563
252269960,0cyclictest1177-21ssh23:12:331
252269960,0cyclictest0-21swapper/120:23:421
149960,0migration/0469-21idleruntime-cro20:58:410
149960,0migration/031650-21needreboot20:08:590
149960,0migration/030243-21kthreadcore00:44:010
149960,0migration/025016-21sh23:07:510
149960,0migration/012051-21gltestperf00:33:560
35150,0ktimersoftd/30-21swapper/321:43:493
339950,0migration/39826-21kthreadcore22:39:013
339950,0migration/39595-21taskset23:16:393
339950,0migration/38612-21kthreadcore21:24:003
339950,0migration/38052-21cpuspeed_turbos20:18:543
339950,0migration/3496-21latency_hist20:58:413
339950,0migration/330298-21kthreadcore21:53:593
339950,0migration/328538-21sh22:13:593
339950,0migration/328538-21sh22:13:593
339950,0migration/328265-21kthreadcore00:04:003
339950,0migration/328039-21latency21:34:013
339950,0migration/325722-21aten_r1power_en20:08:513
339950,0migration/323820-21kthreadcore23:43:593
339950,0migration/323110-21fschecks_count21:13:563
339950,0migration/321069-21taskset20:24:023
339950,0migration/320960-21kthreadcore20:03:593
339950,0migration/318605-21kthreadcore23:58:593
339950,0migration/314849-21munin-node21:28:593
339950,0migration/314087-21sh23:56:273
339950,0migration/31349-21kthreadcore00:44:023
339950,0migration/311544-21munin-node23:18:563
339950,0migration/311315-21taskset20:43:393
339950,0migration/310118-21kthreadcore19:33:593
329950,0watchdog/35183-21if_eth019:53:563
329950,0watchdog/323088-21grep21:49:093
329950,0watchdog/317425-21processes19:59:003
329950,0watchdog/317010-21ssh00:18:133
329950,0watchdog/316108-21tr20:44:003
29815050,0irq/29-eth0-tx-32600-21fschecks_time22:53:542
29815050,0irq/29-eth0-tx-29969-21cut22:14:002
29815050,0irq/29-eth0-tx-29969-21cut22:14:002
29815050,0irq/29-eth0-tx-23268-21munin-node22:48:592
29815050,0irq/29-eth0-tx-17467-21munin-node00:19:062
29815050,0irq/29-eth0-tx-15186-21munin-node23:59:042
29815050,0irq/29-eth0-tx-0-21swapper/223:38:542
29815050,0irq/29-eth0-tx-0-21swapper/223:11:102
29815050,0irq/29-eth0-tx-0-21swapper/222:43:012
29815050,0irq/29-eth0-tx-0-21swapper/222:29:522
29815050,0irq/29-eth0-tx-0-21swapper/222:03:592
29815050,0irq/29-eth0-tx-0-21swapper/222:00:272
29815050,0irq/29-eth0-tx-0-21swapper/200:06:282
29805050,0irq/28-eth0-rx-5878-21kthreadcore00:29:003
29805050,0irq/28-eth0-rx-3524-21snmpd23:52:363
29805050,0irq/28-eth0-rx-32423-21ssh21:38:593
29805050,0irq/28-eth0-rx-26102-21sh00:23:493
29805050,0irq/28-eth0-rx-23171-21tr22:28:583
29805050,0irq/28-eth0-rx-2162-21kthreadcore22:53:583
29805050,0irq/28-eth0-rx-20959-21kthreadcore22:08:593
29805050,0irq/28-eth0-rx-17496-21cut23:03:563
29805050,0irq/28-eth0-rx-14173-21cut22:59:003
29805050,0irq/28-eth0-rx-12897-21ssh23:38:533
29805050,0irq/28-eth0-rx-0-21swapper/323:28:533
29805050,0irq/28-eth0-rx-0-21swapper/322:00:033
29805050,0irq/28-eth0-rx-0-21swapper/320:33:543
29805050,0irq/28-eth0-rx-0-21swapper/300:50:123
29805050,0irq/28-eth0-rx-0-21swapper/300:09:423
27150,0ktimersoftd/20-21swapper/221:43:492
252279955,0cyclictest0-21swapper/221:40:272
252279955,0cyclictest0-21swapper/220:39:072
252269955,0cyclictest0-21swapper/123:51:111
252269955,0cyclictest0-21swapper/100:07:151
252269954,0cyclictest3524-21snmpd19:33:481
252269950,0cyclictest0-21swapper/123:45:491
252269950,0cyclictest0-21swapper/123:38:241
252269950,0cyclictest0-21swapper/122:13:161
252269950,0cyclictest0-21swapper/100:53:361
252259955,0cyclictest0-21swapper/021:24:390
252259955,0cyclictest0-21swapper/000:19:010
252259953,0cyclictest7850-21kworker/0:021:44:290
252259953,0cyclictest17409-21kworker/0:123:56:590
252259953,0cyclictest17409-21kworker/0:123:50:290
252259953,0cyclictest17409-21kworker/0:123:35:590
252259953,0cyclictest17409-21kworker/0:123:24:590
252259953,0cyclictest17409-21kworker/0:122:57:590
252259953,0cyclictest17409-21kworker/0:122:49:590
252259953,0cyclictest17409-21kworker/0:122:47:290
252259953,0cyclictest17409-21kworker/0:122:41:290
252259953,0cyclictest17409-21kworker/0:100:50:290
252259953,0cyclictest17409-21kworker/0:100:33:290
252259950,0cyclictest0-21swapper/022:11:290
252259950,0cyclictest0-21swapper/000:15:430
259950,0migration/29848-21munin-node00:13:592
259950,0migration/230701-21sh21:38:402
259950,0migration/228487-21kthreadcore20:08:572
259950,0migration/228481-21aten_r1power_vo00:43:542
259950,0migration/227863-21sh23:28:472
259950,0migration/224877-21kthreadcore23:24:022
259950,0migration/221511-21sh21:33:002
259950,0migration/220448-21kthreadcore20:49:002
259950,0migration/218910-21munin-node22:24:072
259950,0migration/217269-21cpuspeed_turbos23:03:552
259950,0migration/21611-21irqrtprio00:08:592
259950,0migration/215413-21fschecks_time19:38:542
249950,0watchdog/223239-21hwlatdetect20:28:562
249950,0watchdog/223090-21unixbench_singl21:49:092
19150,0ktimersoftd/10-21swapper/121:43:491
179950,0migration/19867-21munin-node00:13:591
179950,0migration/18360-21latency00:29:011
179950,0migration/15850-21latency_hist22:38:421
179950,0migration/15403-21kthreadcore20:59:001
179950,0migration/14119-21kthreadcore23:13:591
179950,0migration/129359-21idleruntime00:43:571
179950,0migration/128688-21timerwakeupswit21:34:081
179950,0migration/122336-21taskset00:00:211
179950,0migration/114181-21kthreadcore19:58:561
179950,0migration/110701-21aten2.4-expect23:18:541
169950,0watchdog/123087-21grep21:49:091
169950,0watchdog/120143-21entropy00:38:531
169950,0watchdog/115281-21munin-node21:09:001
149950,0migration/04999-21sh22:36:510
149950,0migration/04637-21kthreadcore23:13:590
149950,0migration/0453-21df_abs00:08:540
149950,0migration/04001-21latency_hist23:33:410
149950,0migration/031430-21switchtime21:54:050
149950,0migration/029000-21kthreadcore00:24:000
149950,0migration/027260-21sh22:13:450
149950,0migration/027260-21sh22:13:450
149950,0migration/026568-21gltestperf23:08:560
149950,0migration/025259-21taskset20:06:290
149950,0migration/024427-21kthreadcore20:49:010
149950,0migration/024125-21kthreadcore23:43:590
149950,0migration/018915-21netstat23:39:020
149950,0migration/013970-21kthreadcore22:04:000
149950,0migration/013388-21munin-node22:23:560
149950,0migration/013198-21sh21:28:430
149950,0migration/011667-21idleruntime23:18:570
149950,0migration/011143-21kthreadcore20:19:000
8305040,0irq/26-0000:00:0-21swapper/219:43:412
339940,0migration/3736-21cpuspeed_turbos20:13:543
339940,0migration/331712-21kthreadcore19:48:593
339940,0migration/327061-21kthreadcore19:23:583
339940,0migration/319876-21cpu00:38:523
339940,0migration/319626-21kthreadcore19:38:583
339940,0migration/31231-21diskmemload23:12:433
329940,0watchdog/33783-21crond21:03:363
329940,0watchdog/323238-21hwlatdetect20:28:563
329940,0watchdog/322837-21kthreadcore20:49:003
329940,0watchdog/30-21swapper/323:24:013
329940,0watchdog/30-21swapper/321:04:003
329940,0watchdog/30-21swapper/319:44:003
29815040,0irq/29-eth0-tx-0-21swapper/223:43:562
29815040,0irq/29-eth0-tx-0-21swapper/223:33:572
29815040,0irq/29-eth0-tx-0-21swapper/223:15:072
29815040,0irq/29-eth0-tx-0-21swapper/222:44:062
29815040,0irq/29-eth0-tx-0-21swapper/222:08:532
29815040,0irq/29-eth0-tx-0-21swapper/200:28:442
29815040,0irq/29-eth0-tx-0-21swapper/200:23:572
29815040,0irq/29-eth0-tx-0-21swapper/021:19:030
29815040,0irq/29-eth0-tx-0-21swapper/021:03:580
29815040,0irq/29-eth0-tx-0-21swapper/020:38:570
29805040,0irq/28-eth0-rx-0-21swapper/322:33:433
29805040,0irq/28-eth0-rx-0-21swapper/322:18:533
252279944,0cyclictest0-21swapper/200:33:432
252279943,0cyclictest3571-21lldpd23:18:562
252279943,0cyclictest3571-21lldpd19:58:552
252279943,0cyclictest3524-21snmpd22:34:052
252279943,0cyclictest3524-21snmpd21:14:492
252279943,0cyclictest3524-21snmpd20:57:492
252279943,0cyclictest3524-21snmpd20:44:042
252279943,0cyclictest3524-21snmpd20:19:482
252279943,0cyclictest3524-21snmpd20:14:182
252279943,0cyclictest3524-21snmpd20:07:032
252279943,0cyclictest3524-21snmpd19:53:482
252279943,0cyclictest3524-21snmpd19:38:032
252279943,0cyclictest3524-21snmpd00:38:522
252269944,0cyclictest4352-21diskmemload21:58:181
252269944,0cyclictest0-21swapper/123:56:321
252269944,0cyclictest0-21swapper/122:29:591
252269944,0cyclictest0-21swapper/122:01:551
252269943,0cyclictest3571-21lldpd21:03:551
252269943,0cyclictest3571-21lldpd20:41:551
252269943,0cyclictest32699-21sadc20:13:411
252269943,0cyclictest28437-21awk22:13:581
252269943,0cyclictest28437-21awk22:13:581
252269943,0cyclictest26486-21awk19:23:561
252259943,0cyclictest3571-21lldpd21:35:250
252259943,0cyclictest3571-21lldpd21:15:250
252259943,0cyclictest30358-21awk19:48:570
252259943,0cyclictest22027-21awk22:28:560
252259942,0cyclictest7850-21kworker/0:021:43:290
252259942,0cyclictest17409-21kworker/0:122:59:590
252259942,0cyclictest17409-21kworker/0:100:40:290
259940,0migration/28268-21sh22:58:432
259940,0migration/25394-21kthreadcore22:18:572
259940,0migration/25259-21kthreadcore20:59:002
259940,0migration/230762-21kthreadcore19:23:592
259940,0migration/230749-21kernelversion19:48:582
259940,0migration/23005-21kthreadcore23:49:002
249940,0watchdog/28238-21kthreadcore00:49:012
249940,0watchdog/27729-21if_eth1.323:53:572
249940,0watchdog/232703-21aten_r1power_fr19:28:522
249940,0watchdog/225257-21cpu21:53:532
249940,0watchdog/20-21swapper/221:09:002
249940,0watchdog/20-21swapper/221:04:082
249940,0watchdog/20-21swapper/220:33:562
179940,0migration/13876-21cpuspeed_turbos22:18:521
179940,0migration/129992-21kthreadcore23:28:591
179940,0migration/129623-21latency_hist21:18:421
179940,0migration/127085-21kthreadcore22:48:581
179940,0migration/125983-21kthreadcore19:43:581
179940,0migration/125195-21kthreadcore21:14:001
179940,0migration/122237-21taskset20:28:431
179940,0migration/117370-21latency_hist00:18:421
179940,0migration/116846-21latency_hist23:03:411
179940,0migration/115509-21kthreadcore22:23:591
179940,0migration/113245-21kthreadcore22:04:001
169940,0watchdog/14167-21kthreadcore20:14:001
169940,0watchdog/13524-21snmpd00:08:491
169940,0watchdog/131997-21hostname21:38:561
169940,0watchdog/130235-21fschecks_time20:33:561
169940,0watchdog/120133-21ssh23:40:451
169940,0watchdog/119581-21ssh21:29:041
169940,0watchdog/116512-21ssh23:03:131
169940,0watchdog/10-21swapper/123:24:011
169940,0watchdog/10-21swapper/122:34:011
169940,0watchdog/10-21swapper/120:53:561
169940,0watchdog/10-21swapper/120:44:001
169940,0watchdog/10-21swapper/119:53:561
149940,0migration/07506-21latency_hist19:33:410
149940,0migration/03638-21aten_r1power_cu22:18:510
149940,0migration/023422-21irqrtprio19:43:570
149940,0migration/015073-21cpuspeed_turbos19:38:530
8305030,0irq/26-0000:00:0-21swapper/221:19:052
329930,0watchdog/30-21swapper/321:09:003
329930,0watchdog/30-21swapper/319:28:523
29815030,0irq/29-eth0-tx-32694-21aten2.4-expect19:28:520
29805030,0irq/28-eth0-rx-0-21swapper/321:19:583
252279931,0cyclictest18486-21kthreadcore20:24:002
252269933,0cyclictest3571-21lldpd19:38:541
252269932,0cyclictest9007-21awk20:18:581
252269932,0cyclictest3571-21lldpd20:04:251
252269932,0cyclictest19024-21grep20:48:551
252259933,0cyclictest26656-21kworker/0:120:58:530
252259933,0cyclictest26656-21kworker/0:120:33:420
252259933,0cyclictest26656-21kworker/0:120:13:460
252259933,0cyclictest24421-21kworker/0:219:58:500
252259933,0cyclictest24421-21kworker/0:219:53:520
252259933,0cyclictest24421-21kworker/0:219:23:420
252259933,0cyclictest17409-21kworker/0:123:58:430
252259933,0cyclictest17409-21kworker/0:121:58:450
252259933,0cyclictest17409-21kworker/0:100:03:450
252259932,0cyclictest15327-21basename21:08:530
252259930,0cyclictest0-21swapper/020:23:520
179930,0migration/13432-21runrttasks19:49:141
169930,0watchdog/10-21swapper/122:53:531
169930,0watchdog/10-21swapper/121:25:081
169930,0watchdog/10-21swapper/119:28:521
169930,0watchdog/10-21swapper/100:35:131
169930,0watchdog/10-21swapper/100:23:571
169920,0watchdog/10-21swapper/122:43:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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