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2026-05-23 - 21:56
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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 Sat May 23, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1837723526,0sleep20-21swapper/207:21:372
1817523329,0sleep00-21swapper/007:19:150
1817123026,0sleep10-21swapper/107:19:121
1786923026,0sleep30-21swapper/307:18:503
18606991313,0cyclictest0-21swapper/209:23:522
18605991212,0cyclictest8806-21sensors11:43:481
186049983,0cyclictest3524-21snmpd09:47:020
186049983,0cyclictest10071-21awk11:28:400
186049975,0cyclictest0-21swapper/011:52:540
186049972,0cyclictest21459-21awk09:58:400
186049972,0cyclictest17300-21awk08:33:380
186049972,0cyclictest16517-21awk07:43:400
186049972,0cyclictest13778-21irqcore08:08:420
186049972,0cyclictest11038-21awk10:48:440
186049972,0cyclictest10217-21awk09:33:410
186049970,0cyclictest5354-21munin-node08:03:430
186049970,0cyclictest30655-21munin-node08:43:460
186049970,0cyclictest23262-21munin-node07:53:460
339960,0migration/35107-21sh11:22:163
339960,0migration/331498-21sh09:26:383
339960,0migration/327925-21sh11:14:523
339960,0migration/321154-21munin-node08:13:423
339960,0migration/319955-21kthreadcore12:48:423
339960,0migration/318897-21sh11:51:423
339960,0migration/316445-21sh11:31:103
339960,0migration/311244-21sh09:52:583
29805060,0irq/28-eth0-rx-931-21port_sshpriv10:58:473
29805060,0irq/28-eth0-rx-6705-21kthreadcore10:43:453
186049964,0cyclictest0-21swapper/009:53:430
186049962,0cyclictest7511-21sensors10:43:480
186049962,0cyclictest7206-21kthreadcore11:43:440
186049962,0cyclictest3524-21snmpd08:16:020
186049962,0cyclictest27262-21awk11:38:410
186049961,0cyclictest23523-21diskmemload10:04:180
186049960,0cyclictest798-21munin-node07:33:380
186049960,0cyclictest7538-21kthreadcore08:48:430
186049960,0cyclictest5008-21irqrtprio11:03:420
186049960,0cyclictest32245-21hddtemp_smartct10:23:390
186049960,0cyclictest24500-21kthreadcore07:23:420
186049960,0cyclictest22088-21kthreadcore09:18:420
186049960,0cyclictest20018-21sh11:11:580
186049960,0cyclictest1968-21kthreadcore12:18:430
186049960,0cyclictest1906-21sh11:00:060
186049960,0cyclictest15540-21irqrtprio10:13:430
186049960,0cyclictest13769-21cpuspeed_turbos12:08:380
186049960,0cyclictest11849-21kthreadcore12:43:430
186049960,0cyclictest0-21swapper/012:52:290
186049960,0cyclictest0-21swapper/012:23:390
186049960,0cyclictest0-21swapper/012:00:240
186049960,0cyclictest0-21swapper/011:56:130
186049960,0cyclictest0-21swapper/011:19:050
186049960,0cyclictest0-21swapper/011:13:260
186049960,0cyclictest0-21swapper/010:08:480
186049960,0cyclictest0-21swapper/009:23:330
186049960,0cyclictest0-21swapper/008:53:450
179960,0migration/120122-21sh11:12:151
8305050,0irq/26-0000:00:2290-21sed11:43:252
8305050,0irq/26-0000:00:12333-21perf08:08:242
339950,0migration/36572-21kthreadcore09:08:433
339950,0migration/36138-21taskset10:25:143
339950,0migration/33456-21hwlatdetect11:43:403
339950,0migration/331939-21irqcore08:43:413
339950,0migration/330821-21kthreadcore08:18:433
339950,0migration/32861-21kthreadcore07:58:433
339950,0migration/327570-21gltestperf09:43:383
339950,0migration/32565-21fschecks_time08:23:393
339950,0migration/325348-21sh10:54:143
339950,0migration/324405-21taskset12:33:343
339950,0migration/324185-21munin-node07:53:393
339950,0migration/323674-21munin-node10:18:393
339950,0migration/323297-21taskset09:20:563
339950,0migration/322211-21kthreadcore08:58:423
339950,0migration/319624-21kthreadcore09:38:433
339950,0migration/315458-21taskset10:31:593
339950,0migration/315343-21kthreadcore11:08:433
339950,0migration/314506-21kthreadcore10:48:463
339950,0migration/311200-21kthreadcore12:43:433
329950,0watchdog/37726-21sh09:30:513
329950,0watchdog/37701-21sh11:25:523
329950,0watchdog/37096-21kernelversion08:48:433
329950,0watchdog/34390-21memory12:18:443
329950,0watchdog/322479-21yum12:28:523
329950,0watchdog/318456-21cut12:08:443
29815050,0irq/29-eth0-tx-8318-21ssh09:32:262
29815050,0irq/29-eth0-tx-10585-21ssh09:51:112
29815050,0irq/29-eth0-tx-0-21swapper/211:00:472
29815050,0irq/29-eth0-tx-0-21swapper/210:34:452
29815050,0irq/29-eth0-tx-0-21swapper/210:07:132
29805050,0irq/28-eth0-rx-4302-21fschecks_time11:03:393
29805050,0irq/28-eth0-rx-2996-21kthreadcore12:38:423
29805050,0irq/28-eth0-rx-2802-21ksmtuned11:58:553
29805050,0irq/28-eth0-rx-26904-21fschecks_time11:38:383
29805050,0irq/28-eth0-rx-19733-21grep07:43:423
29805050,0irq/28-eth0-rx-15972-21latency_hist10:33:253
29805050,0irq/28-eth0-rx-14953-21expr10:13:403
29805050,0irq/28-eth0-rx-11159-21sh12:03:483
29805050,0irq/28-eth0-rx-0-21swapper/310:38:373
29805050,0irq/28-eth0-rx-0-21swapper/310:09:083
29805050,0irq/28-eth0-rx-0-21swapper/308:03:413
259950,0migration/29294-21cpuspeed_turbos08:28:372
259950,0migration/24481-21sh11:20:322
259950,0migration/21763-21latency_hist09:08:242
259950,0migration/212255-21munin-node11:48:412
259950,0migration/210826-21missed_timers12:03:442
249950,0watchdog/28668-21ssh12:23:402
249950,0watchdog/25808-21cut09:08:432
249950,0watchdog/20-21swapper/207:38:392
19150,0ktimersoftd/123523-21diskmemload11:07:581
186069955,0cyclictest0-21swapper/208:58:372
186069954,0cyclictest19505-21ps12:48:422
186059955,0cyclictest0-21swapper/108:53:241
186059954,0cyclictest3524-21snmpd10:18:471
186059950,0cyclictest0-21swapper/110:48:011
186059950,0cyclictest0-21swapper/109:25:531
186059950,0cyclictest0-21swapper/108:58:361
186049951,0cyclictest0-21swapper/010:39:050
186049950,0cyclictest28709-21munin-node10:18:450
186049950,0cyclictest24403-21ssh12:33:330
186049950,0cyclictest23297-21ssh12:31:070
186049950,0cyclictest23247-21diskmemload10:34:450
186049950,0cyclictest13780-21munin-node10:28:470
186049950,0cyclictest12176-21diskmemload12:05:390
186049950,0cyclictest0-21swapper/012:43:250
186049950,0cyclictest0-21swapper/011:26:250
186049950,0cyclictest0-21swapper/008:19:090
186049950,0cyclictest0-21swapper/007:50:390
179950,0migration/14723-21taskset07:58:521
179950,0migration/131278-21munin-node10:23:361
179950,0migration/127917-21sh08:18:391
179950,0migration/127184-21aten_r1power_cu09:03:351
179950,0migration/123978-21timerandwakeup11:33:501
179950,0migration/120738-21kthreadcore12:48:421
179950,0migration/120369-21smart_sdb10:13:501
179950,0migration/119539-21munin-node10:53:391
179950,0migration/11918-21latency11:58:441
169950,0watchdog/18693-21ps12:23:401
169950,0watchdog/11382-21kthreadcore10:03:431
8305040,0irq/26-0000:00:0-21swapper/211:38:252
339940,0migration/324708-21missed_timers07:23:433
339940,0migration/320808-21hwlatdetect11:53:403
339940,0migration/319615-21taskset08:56:413
329940,0watchdog/3301302sleep308:40:073
329940,0watchdog/316520-21cpuspeed_turbos08:33:353
329940,0watchdog/30-21swapper/312:23:403
329940,0watchdog/30-21swapper/310:03:433
329940,0watchdog/30-21swapper/308:28:393
329940,0watchdog/30-21swapper/308:08:433
329940,0watchdog/30-21swapper/307:38:393
329940,0watchdog/30-21swapper/307:33:433
29815040,0irq/29-eth0-tx-9224-21kthreadcore10:08:442
29815040,0irq/29-eth0-tx-24910-21aten_r1power_en10:38:372
29815040,0irq/29-eth0-tx-20583-21grep12:28:432
29815040,0irq/29-eth0-tx-0-21swapper/212:38:282
29815040,0irq/29-eth0-tx-0-21swapper/212:08:262
29815040,0irq/29-eth0-tx-0-21swapper/211:59:112
29815040,0irq/29-eth0-tx-0-21swapper/211:53:342
29815040,0irq/29-eth0-tx-0-21swapper/211:33:432
29815040,0irq/29-eth0-tx-0-21swapper/211:23:422
29815040,0irq/29-eth0-tx-0-21swapper/211:13:362
29815040,0irq/29-eth0-tx-0-21swapper/211:03:282
29815040,0irq/29-eth0-tx-0-21swapper/210:43:342
29815040,0irq/29-eth0-tx-0-21swapper/210:23:292
29815040,0irq/29-eth0-tx-0-21swapper/210:18:382
29815040,0irq/29-eth0-tx-0-21swapper/210:14:272
29805040,0irq/28-eth0-rx-0-21swapper/312:15:003
29805040,0irq/28-eth0-rx-0-21swapper/311:35:173
29805040,0irq/28-eth0-rx-0-21swapper/309:58:423
29805040,0irq/28-eth0-rx-0-21swapper/309:53:363
29805040,0irq/28-eth0-rx-0-21swapper/309:33:423
259940,0migration/28611-21idleruntime10:28:412
259940,0migration/2649-21processes08:18:472
259940,0migration/25161-21latency_hist08:03:242
259940,0migration/22968-21kthreadcore12:18:432
259940,0migration/225879-21irqrtprio12:33:422
259940,0migration/223660-21kthreadcore09:58:422
259940,0migration/214033-21kthreadcore09:13:422
259940,0migration/211472-21kthreadcore11:28:422
249940,0watchdog/224280-21cut08:13:432
249940,0watchdog/222036-21ssh12:13:282
249940,0watchdog/222030-21kthreadcore10:53:442
249940,0watchdog/211662-21ssh09:53:312
249940,0watchdog/20-21swapper/210:48:402
249940,0watchdog/20-21swapper/208:53:432
249940,0watchdog/20-21swapper/208:08:432
186069943,0cyclictest3571-21lldpd09:38:382
186069943,0cyclictest3571-21lldpd08:51:072
186069943,0cyclictest3571-21lldpd08:34:372
186069943,0cyclictest3571-21lldpd07:51:052
186069943,0cyclictest3571-21lldpd07:33:352
186069943,0cyclictest3571-21lldpd07:30:042
186069943,0cyclictest3571-21lldpd07:24:042
186069943,0cyclictest27816-21awk09:43:402
186069943,0cyclictest17624-21awk09:18:402
186069943,0cyclictest16399-21awk07:43:392
186069943,0cyclictest13265-21awk11:08:402
186069943,0cyclictest10470-21awk12:43:402
186069943,0cyclictest10193-21awk09:33:412
186059943,0cyclictest3524-21snmpd12:33:191
186059943,0cyclictest3524-21snmpd12:15:341
186059943,0cyclictest3524-21snmpd12:08:331
186059943,0cyclictest3524-21snmpd11:55:331
186059943,0cyclictest3524-21snmpd11:16:331
186059943,0cyclictest3524-21snmpd09:48:321
186059943,0cyclictest3524-21snmpd08:48:321
186059943,0cyclictest3524-21snmpd08:38:321
186059943,0cyclictest3524-21snmpd08:36:321
186059943,0cyclictest3524-21snmpd08:03:311
186059943,0cyclictest3524-21snmpd07:49:311
186059943,0cyclictest3524-21snmpd07:37:311
186059943,0cyclictest2907-21awk08:23:411
186059943,0cyclictest1283-21awk09:28:401
186059943,0cyclictest10118-21awk08:28:401
186059940,0cyclictest0-21swapper/110:41:241
186059940,0cyclictest0-21swapper/110:00:151
186049944,0cyclictest0-21swapper/009:40:470
186049943,0cyclictest3524-21snmpd09:13:320
186049943,0cyclictest3524-21snmpd09:01:320
186049943,0cyclictest28283-21awk09:03:400
186049943,0cyclictest27104-21awk07:28:390
186049943,0cyclictest0-21swapper/008:28:360
186049940,0cyclictest0-21swapper/009:33:190
186049940,0cyclictest0-21swapper/008:23:380
179940,0migration/18173-21taskset11:27:121
179940,0migration/14036-21kthreadcore09:08:431
179940,0migration/131381-21kthreadcore10:58:441
179940,0migration/130614-21latency_hist08:43:241
179940,0migration/129853-21kthreadcore07:28:421
179940,0migration/122076-21kthreadcore07:23:421
179940,0migration/12053-21runrttasks11:43:151
179940,0migration/119707-21kthreadcore09:18:411
179940,0migration/113939-21kthreadcore10:48:461
179940,0migration/113367-21kthreadcore11:28:431
179940,0migration/112044-21kthreadcore09:13:411
179940,0migration/111551-21kthreadcore12:43:431
179940,0migration/111206-21kthreadcore09:33:421
169940,0watchdog/1609-21kthreadcore11:18:441
169940,0watchdog/126724-21aten_r1power_po09:43:351
169940,0watchdog/125196-21sshd09:40:311
169940,0watchdog/124390-21ssh12:33:321
169940,0watchdog/123405-21taskset10:35:121
169940,0watchdog/118991-21sed08:08:511
169940,0watchdog/117916-21ssh11:49:001
169940,0watchdog/111624-21rt-features10:08:471
169940,0watchdog/110327-21cut10:28:441
8305030,0irq/26-0000:00:0-21swapper/207:53:462
329930,0watchdog/30-21swapper/307:48:273
329930,0watchdog/30-21swapper/307:28:273
29805030,0irq/28-eth0-rx-0-21swapper/309:13:363
29805030,0irq/28-eth0-rx-0-21swapper/309:03:363
249930,0watchdog/20-21swapper/208:38:432
186069932,0cyclictest31567-21grep08:43:382
186069930,0cyclictest2560-21perl08:23:392
186059933,0cyclictest3571-21lldpd12:38:421
186059933,0cyclictest3524-21snmpd07:43:311
186059932,0cyclictest24340-21awk07:53:401
186049933,0cyclictest25823-21kworker/0:212:13:260
186049933,0cyclictest16177-21kworker/0:110:54:020
186049933,0cyclictest10609-21kworker/0:109:48:360
186049932,0cyclictest5125-21sadc08:03:230
186049932,0cyclictest18743-21awk11:33:410
186049930,0cyclictest0-21swapper/008:40:050
186049930,0cyclictest0-21swapper/007:38:440
179930,0migration/15435-21diskmemload12:19:401
179930,0migration/122253-21kthreadcore08:13:421
169930,0watchdog/10-21swapper/112:03:281
169930,0watchdog/10-21swapper/109:53:311
169930,0watchdog/10-21swapper/107:38:391
186049920,0cyclictest1936-21latency_hist09:08:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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