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2026-03-12 - 18:40
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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 Mar 12, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2887324132,0sleep30-21swapper/307:14:303
2889223827,0sleep20-21swapper/207:14:452
2892523726,0sleep00-21swapper/007:15:070
2883523425,0sleep10-21swapper/107:14:041
35170,0ktimersoftd/30-21swapper/310:52:453
4160,0ktimersoftd/015174-21kthreadcore12:07:440
339960,0migration/34690-21taskset08:52:303
339960,0migration/33027-21sh11:04:033
339960,0migration/327835-21latency_hist12:17:283
339960,0migration/327768-21sh09:45:503
339960,0migration/319613-21sh09:42:103
29815060,0irq/29-eth0-tx-606-21munin-node07:42:450
29805060,0irq/28-eth0-rx-15949-21perl07:52:403
292009960,0cyclictest0-21swapper/108:42:501
19160,0ktimersoftd/10-21swapper/110:32:151
149960,0migration/027315-21sh12:16:280
149960,0migration/027243-21sh09:44:210
149960,0migration/022791-21sh11:35:250
149960,0migration/020889-21kthreadcore09:02:440
8305050,0irq/26-0000:00:922-21crond09:12:272
8305050,0irq/26-0000:00:11437-21crond08:12:272
339950,0migration/39883-21sh09:34:383
339950,0migration/37821-21latency_hist07:47:273
339950,0migration/35981-21munin-node08:07:433
339950,0migration/35135-21unixbench_singl10:07:523
339950,0migration/330267-21fschecks_count08:47:403
339950,0migration/32969-21kthreadcore11:42:453
339950,0migration/325832-21latency_hist07:37:273
339950,0migration/325571-21taskset08:19:273
339950,0migration/324812-21fschecks_count10:22:403
339950,0migration/323743-21sh11:37:293
339950,0migration/323651-21switchtime11:52:513
339950,0migration/322923-21taskset10:19:243
339950,0migration/32226-21kthreadcore07:17:453
339950,0migration/319701-21idleruntime07:32:423
339950,0migration/315189-21timerandwakeup11:47:523
339950,0migration/314482-21kthreadcore10:32:453
339950,0migration/310507-21kthreadcore11:27:453
329950,0watchdog/36431-21aten_r1power_vo12:42:393
329950,0watchdog/32366-21iostat_ios09:12:423
329950,0watchdog/314787-21python09:17:503
329950,0watchdog/314787-21python09:17:503
329950,0watchdog/314368-21python08:32:503
329950,0watchdog/30-21swapper/312:11:393
29815050,0irq/29-eth0-tx-5545-21ssh10:08:512
29815050,0irq/29-eth0-tx-30024-21munin-node12:37:522
29815050,0irq/29-eth0-tx-29804-21munin-node08:47:390
29815050,0irq/29-eth0-tx-27225-21cut11:57:432
29815050,0irq/29-eth0-tx-26067-21munin-node08:22:400
29815050,0irq/29-eth0-tx-19182-21grep09:57:452
29815050,0irq/29-eth0-tx-15350-21munin-node08:37:370
29815050,0irq/29-eth0-tx-11672-21munin-node08:12:400
29815050,0irq/29-eth0-tx-0-21swapper/212:30:332
29815050,0irq/29-eth0-tx-0-21swapper/212:12:562
29815050,0irq/29-eth0-tx-0-21swapper/212:03:572
29815050,0irq/29-eth0-tx-0-21swapper/211:17:382
29815050,0irq/29-eth0-tx-0-21swapper/210:29:512
29815050,0irq/29-eth0-tx-0-21swapper/008:45:150
29815050,0irq/29-eth0-tx-0-21swapper/008:35:130
29815050,0irq/29-eth0-tx-0-21swapper/008:27:450
29815050,0irq/29-eth0-tx-0-21swapper/007:20:000
29805050,0irq/28-eth0-rx-7478-21ssh10:28:363
29805050,0irq/28-eth0-rx-6921-21cat09:52:443
29805050,0irq/28-eth0-rx-4672-21forks12:22:403
29805050,0irq/28-eth0-rx-30013-21ssh12:37:373
29805050,0irq/28-eth0-rx-29058-21df_abs09:47:393
29805050,0irq/28-eth0-rx-19495-40yum-updatesd-he11:12:523
29805050,0irq/28-eth0-rx-19351-21cut11:32:463
29805050,0irq/28-eth0-rx-18267-21kthreadcore09:57:453
29805050,0irq/28-eth0-rx-15380-21chrt08:37:353
29805050,0irq/28-eth0-rx-13441-40yum-updatesd-he10:12:503
29805050,0irq/28-eth0-rx-0-21swapper/312:32:453
29805050,0irq/28-eth0-rx-0-21swapper/312:12:453
29805050,0irq/28-eth0-rx-0-21swapper/311:22:393
29805050,0irq/28-eth0-rx-0-21swapper/311:19:063
29805050,0irq/28-eth0-rx-0-21swapper/310:57:523
29805050,0irq/28-eth0-rx-0-21swapper/310:42:283
29805050,0irq/28-eth0-rx-0-21swapper/310:06:013
29805050,0irq/28-eth0-rx-0-21swapper/309:32:283
29805050,0irq/28-eth0-rx-0-21swapper/309:22:383
292049955,0cyclictest0-21swapper/212:18:222
292049955,0cyclictest0-21swapper/211:13:162
292049955,0cyclictest0-21swapper/209:43:522
292049950,0cyclictest0-21swapper/211:48:532
292049950,0cyclictest0-21swapper/210:55:272
292009954,0cyclictest26112-21crond09:07:271
292009954,0cyclictest0-21swapper/108:32:451
291999955,0cyclictest0-21swapper/012:30:540
291999955,0cyclictest0-21swapper/010:49:130
291999954,0cyclictest3524-21snmpd09:38:210
291999953,0cyclictest31763-21kworker/0:012:02:450
291999953,0cyclictest31763-21kworker/0:010:16:350
291999950,0cyclictest0-21swapper/011:56:230
259950,0migration/26655-21timerwakeupswit11:42:522
259950,0migration/25933-21irqcore08:52:452
259950,0migration/25162-21sh11:24:002
259950,0migration/224214-21kthreadcore07:32:462
259950,0migration/224018-21latency_hist10:22:272
259950,0migration/221963-21sh11:33:022
259950,0migration/219567-21taskset09:42:022
249950,0watchdog/229729-21ssh10:05:142
179950,0migration/120635-21kthreadcore07:32:451
179950,0migration/115169-21kernelversion09:57:441
179950,0migration/115030-21latency_hist11:32:271
169950,0watchdog/19844-21awk11:47:431
169950,0watchdog/123621-21sed11:52:511
14051250,0sleep314301-21irqrtprio12:27:453
149950,0migration/09570-21kthreadcore09:52:450
149950,0migration/09139-21kthreadcore08:07:440
149950,0migration/08624-21aten_r1power_vo09:17:390
149950,0migration/08624-21aten_r1power_vo09:17:390
149950,0migration/08365-21kthreadcore07:22:440
149950,0migration/05835-21kthreadcore09:12:440
149950,0migration/05366-21sh12:40:410
149950,0migration/05016-21kthreadcore10:27:460
149950,0migration/04980-21cpuspeed_turbos08:52:410
149950,0migration/0470-21kthreadcore11:02:450
149950,0migration/03410-21switchtime08:02:510
149950,0migration/03031-21kthreadcore11:22:450
149950,0migration/026450-21taskset10:58:050
149950,0migration/026321-21kthreadcore07:57:450
149950,0migration/025857-21kthreadcore11:17:440
149950,0migration/023038-21latency09:22:440
149950,0migration/021356-21latency_hist12:32:280
149950,0migration/017620-21kthreadcore10:17:440
149950,0migration/016919-21sh11:52:140
149950,0migration/016071-21kthreadcore11:12:450
149950,0migration/01590-21sh12:02:040
149950,0migration/015721-21fschecks_count07:52:400
149950,0migration/015096-21kthreadcore08:57:440
149950,0migration/011703-21kthreadcore10:32:440
149950,0migration/011121-21latency_hist09:37:280
149950,0migration/011067-21taskset10:52:280
149950,0migration/010374-21kthreadcore07:47:430
8305040,0irq/26-0000:00:0-21swapper/209:22:422
339940,0migration/38551-21kthreadcore11:07:443
339940,0migration/37718-21kthreadcore07:22:443
339940,0migration/327338-21kthreadcore08:42:443
339940,0migration/324294-21kthreadcore09:02:453
329940,0watchdog/312661-21if_eth1.307:27:423
329940,0watchdog/30-21swapper/312:02:473
29815040,0irq/29-eth0-tx-17276-21ssh11:52:362
29815040,0irq/29-eth0-tx-0-21swapper/210:47:402
29815040,0irq/29-eth0-tx-0-21swapper/210:37:292
29815040,0irq/29-eth0-tx-0-21swapper/210:32:332
29815040,0irq/29-eth0-tx-0-21swapper/210:24:012
29815040,0irq/29-eth0-tx-0-21swapper/209:27:362
29805040,0irq/28-eth0-rx-6314-21runrttasks08:14:463
29805040,0irq/28-eth0-rx-26490-21munin-node11:57:403
29805040,0irq/28-eth0-rx-18826-21if_eth1.310:37:433
29805040,0irq/28-eth0-rx-0-21swapper/310:47:433
29805040,0irq/28-eth0-rx-0-21swapper/309:07:443
29805040,0irq/28-eth0-rx-0-21swapper/308:02:423
29805040,0irq/28-eth0-rx-0-21swapper/307:57:373
292049943,0cyclictest5311-21awk12:22:432
292049943,0cyclictest3571-21lldpd11:04:152
292049943,0cyclictest3524-21snmpd09:16:512
292049943,0cyclictest3524-21snmpd07:24:202
292049943,0cyclictest26966-21awk07:37:412
292049943,0cyclictest23487-21awk07:57:422
292049943,0cyclictest20830-21awk10:57:432
292049943,0cyclictest16478-21awk08:37:402
292049943,0cyclictest11769-21awk12:07:412
292049940,0cyclictest0-21swapper/212:32:342
292009944,0cyclictest3085-21fschecks_time10:47:391
292009944,0cyclictest0-21swapper/112:29:141
292009944,0cyclictest0-21swapper/109:32:491
292009944,0cyclictest0-21swapper/108:22:391
292009943,0cyclictest5587-21awk08:07:421
292009943,0cyclictest3571-21lldpd12:10:461
292009943,0cyclictest3250-21irqbalance12:38:041
292009943,0cyclictest3250-21irqbalance12:14:341
292009943,0cyclictest3250-21irqbalance11:01:141
292009943,0cyclictest3250-21irqbalance10:18:141
292009943,0cyclictest3250-21irqbalance10:12:341
292009943,0cyclictest3250-21irqbalance10:11:441
292009943,0cyclictest3250-21irqbalance09:53:241
292009943,0cyclictest3250-21irqbalance09:18:141
292009943,0cyclictest3250-21irqbalance09:18:141
292009943,0cyclictest3250-21irqbalance08:58:041
292009943,0cyclictest3250-21irqbalance08:52:541
292009943,0cyclictest3250-21irqbalance08:49:041
292009943,0cyclictest3250-21irqbalance08:28:031
292009943,0cyclictest3250-21irqbalance08:19:131
292009943,0cyclictest3250-21irqbalance08:13:131
292009943,0cyclictest3250-21irqbalance07:42:331
292009943,0cyclictest3243-21awk12:02:451
292009943,0cyclictest30443-21awk07:17:411
292009943,0cyclictest27045-21awk09:27:421
292009943,0cyclictest26911-21awk07:37:411
292009943,0cyclictest25390-21awk10:22:421
292009943,0cyclictest23518-21sadc11:37:271
292009943,0cyclictest23344-21awk07:57:411
292009943,0cyclictest2294-21awk09:12:421
292009943,0cyclictest16162-21awk07:52:421
292009943,0cyclictest12506-21awk09:37:421
292009943,0cyclictest1087-21awk11:42:421
292009940,0cyclictest0-21swapper/111:14:491
291999944,0cyclictest0-21swapper/011:29:060
291999943,0cyclictest3571-21lldpd10:39:150
291999943,0cyclictest3250-21irqbalance09:47:340
291999943,0cyclictest27077-21awk09:27:420
291999943,0cyclictest19922-21awk08:17:410
291999943,0cyclictest13647-21ssh12:44:470
291999943,0cyclictest12552-21awk07:27:410
291999942,0cyclictest31763-21kworker/0:012:22:430
291999942,0cyclictest31763-21kworker/0:012:21:050
291999942,0cyclictest31763-21kworker/0:011:38:050
291999942,0cyclictest31763-21kworker/0:010:24:350
291999941,0cyclictest0-21swapper/007:37:370
259940,0migration/29372-21irqrtprio07:47:422
259940,0migration/24426-21latency_hist11:07:272
259940,0migration/231193-21kthreadcore10:42:452
259940,0migration/230547-21idleruntime08:02:412
259940,0migration/227746-21kthreadcore08:22:452
259940,0migration/22470-21aten_r1power_fr09:32:382
259940,0migration/224630-21fschecks_time11:37:402
259940,0migration/22438-21kthreadcore07:17:452
259940,0migration/221929-21kthreadcore08:17:442
259940,0migration/220772-21kthreadcore07:52:452
259940,0migration/21604-21kthreadcore08:47:452
259940,0migration/21518-21kthreadcore09:47:452
259940,0migration/214399-21switchtime08:32:522
259940,0migration/212578-21latency11:27:462
259940,0migration/210484-21kthreadcore09:17:452
259940,0migration/210484-21kthreadcore09:17:452
249940,0watchdog/26017-21if_err_eth1.209:52:422
249940,0watchdog/20-21swapper/212:42:312
249940,0watchdog/20-21swapper/210:12:382
249940,0watchdog/20-21swapper/207:27:422
179940,0migration/17218-21gltestperf12:42:411
179940,0migration/127948-21kthreadcore11:37:451
179940,0migration/126581-21kthreadcore11:17:451
179940,0migration/125603-21taskset10:41:241
179940,0migration/123175-21gltestperf10:02:411
179940,0migration/11680-21taskset10:46:141
179940,0migration/115614-21unixbench-2d10:32:521
179940,0migration/114685-21kthreadcore07:27:431
179940,0migration/11248-21kthreadcore09:47:451
179940,0migration/112273-21kthreadcore07:47:441
179940,0migration/111220-21taskset12:23:361
169940,0watchdog/132278-21needreboot09:07:461
169940,0watchdog/12790-21ssh11:03:231
169940,0watchdog/122511-21if_err_eth1.212:32:431
169940,0watchdog/119280-21kthreadcore08:37:421
169940,0watchdog/10-21swapper/111:22:431
169940,0watchdog/10-21swapper/109:22:301
149940,0migration/0875-21sh10:43:570
149940,0migration/0590-21kthreadcore10:07:430
149940,0migration/028848-21kthreadcore09:07:440
149940,0migration/02036-21kthreadcore11:42:440
149940,0migration/017495-21kthreadcore09:57:450
29805030,0irq/28-eth0-rx-0-21swapper/308:57:423
29805030,0irq/28-eth0-rx-0-21swapper/308:22:393
29805030,0irq/28-eth0-rx-0-21swapper/307:47:383
292049932,0cyclictest29580-21sadc08:47:272
292049932,0cyclictest20988-21cut09:02:442
292049932,0cyclictest1719-21awk07:42:422
292049932,0cyclictest13966-21kthreadcore08:57:442
292009932,0cyclictest3250-21irqbalance08:02:331
292009932,0cyclictest12331-21awk10:52:441
292009930,0cyclictest26943-21ssh09:43:301
292009930,0cyclictest0-21swapper/107:22:351
291999933,0cyclictest32006-21kworker/0:207:32:420
291999933,0cyclictest31763-21kworker/0:011:07:310
291999931,0cyclictest29632-21kworker/0:110:02:350
259930,0migration/212825-21if_eth1.208:12:432
249930,0watchdog/26971-21ntpq08:27:462
169930,0watchdog/10-21swapper/111:57:311
169930,0watchdog/10-21swapper/111:07:511
29805020,0irq/28-eth0-rx-0-21swapper/308:27:303
169920,0watchdog/10-21swapper/112:17:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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