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2026-08-28 - 01:40
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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 Fri Aug 28, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
759123626,0sleep20-21swapper/219:27:122
782823228,0sleep30-21swapper/319:30:023
761723019,0sleep00-21swapper/019:27:300
780122925,0sleep10-21swapper/119:29:401
8013992020,0cyclictest3524-21snmpd21:21:261
8012991212,0cyclictest3858-21sensors20:31:390
339960,0migration/36389-21sh23:34:103
339960,0migration/35188-21sh23:16:153
339960,0migration/329795-21sh00:45:553
339960,0migration/322628-21sh00:59:363
339960,0migration/322275-21sh22:07:433
339960,0migration/318563-21irqrtprio22:26:383
29815060,0irq/29-eth0-tx-19299-21munin-node20:46:330
29805060,0irq/28-eth0-rx-4645-21dump-pmu-power20:36:173
29805060,0irq/28-eth0-rx-30474-21cut00:26:363
29805060,0irq/28-eth0-rx-20944-21if_eth1.200:21:373
149960,0migration/028255-21sh00:26:200
149960,0migration/023096-21sh23:43:040
149960,0migration/010033-21sh22:41:120
8305050,0irq/26-0000:00:8165-21python22:36:422
8305050,0irq/26-0000:00:20633-21perl00:21:332
80149955,0cyclictest0-21swapper/220:51:182
80139955,0cyclictest0-21swapper/122:51:371
80139955,0cyclictest0-21swapper/122:15:221
80139954,0cyclictest3524-21snmpd23:46:341
80139950,0cyclictest0-21swapper/123:45:141
80139950,0cyclictest0-21swapper/123:21:541
80139950,0cyclictest0-21swapper/122:02:171
80129955,0cyclictest0-21swapper/022:27:560
80129955,0cyclictest0-21swapper/019:36:330
80129955,0cyclictest0-21swapper/019:36:330
80129955,0cyclictest0-21swapper/000:14:590
4150,0ktimersoftd/00-21swapper/000:33:350
339950,0migration/36274-21fschecks_time23:16:323
339950,0migration/35781-21taskset21:59:273
339950,0migration/35567-21idleruntime00:31:343
339950,0migration/332710-21timerwakeupswit20:06:423
339950,0migration/331829-21kthreadcore00:46:363
339950,0migration/33021-21kthreadcore20:11:343
339950,0migration/329733-21missed_timers22:11:383
339950,0migration/329206-21taskset19:42:323
339950,0migration/328891-21kthreadcore20:51:363
339950,0migration/328543-21munin-node21:36:333
339950,0migration/325844-21munin-node21:31:433
339950,0migration/32068-21taskset22:52:413
339950,0migration/317319-21diskmemload22:42:313
339950,0migration/316554-21kthreadcore21:26:373
339950,0migration/316267-21fschecks_time20:21:313
339950,0migration/315814-21aten_r1power_en21:06:303
339950,0migration/315560-21irqrtprio23:21:363
339950,0migration/315444-21taskset21:05:133
339950,0migration/312279-21munin-node23:01:293
339950,0migration/312180-21kthreadcore22:21:363
339950,0migration/311624-21taskset21:21:473
339950,0migration/311095-21sh21:42:133
329950,0watchdog/3624-21yum00:06:463
329950,0watchdog/318694-21perl00:01:303
329950,0watchdog/310660-21ssh22:57:333
329950,0watchdog/30-21swapper/300:16:383
29815050,0irq/29-eth0-tx-9310-21munin-node23:56:402
29815050,0irq/29-eth0-tx-6436-21munin-node00:51:442
29815050,0irq/29-eth0-tx-3524-21snmpd21:06:230
29815050,0irq/29-eth0-tx-28926-21ssh00:43:232
29815050,0irq/29-eth0-tx-26705-21ssh22:50:012
29815050,0irq/29-eth0-tx-26371-21munin-node00:06:442
29815050,0irq/29-eth0-tx-2365-21ssh21:37:142
29815050,0irq/29-eth0-tx-22593-21munin-node23:26:452
29815050,0irq/29-eth0-tx-13138-21munin-node00:36:372
29815050,0irq/29-eth0-tx-0-21swapper/223:52:432
29815050,0irq/29-eth0-tx-0-21swapper/223:46:562
29815050,0irq/29-eth0-tx-0-21swapper/223:33:542
29815050,0irq/29-eth0-tx-0-21swapper/222:56:392
29815050,0irq/29-eth0-tx-0-21swapper/222:46:092
29815050,0irq/29-eth0-tx-0-21swapper/222:30:022
29815050,0irq/29-eth0-tx-0-21swapper/201:01:002
29815050,0irq/29-eth0-tx-0-21swapper/021:31:180
29815050,0irq/29-eth0-tx-0-21swapper/021:16:290
29815050,0irq/29-eth0-tx-0-21swapper/020:51:200
29815050,0irq/29-eth0-tx-0-21swapper/020:36:300
29805050,0irq/28-eth0-rx-9042-21perl19:31:313
29805050,0irq/28-eth0-rx-7593-21python20:56:433
29805050,0irq/28-eth0-rx-7454-21aten_r1power_cu23:36:313
29805050,0irq/28-eth0-rx-40732sleep319:47:143
29805050,0irq/28-eth0-rx-25403-21kthreadcore21:51:373
29805050,0irq/28-eth0-rx-23965-21irqcore23:26:363
29805050,0irq/28-eth0-rx-17229-21kthreadcore00:36:363
29805050,0irq/28-eth0-rx-16904-21ssh23:59:273
29805050,0irq/28-eth0-rx-14170-21latency20:16:353
29805050,0irq/28-eth0-rx-13747-21fschecks_time21:46:313
29805050,0irq/28-eth0-rx-12503-21nfs4_client00:51:383
29805050,0irq/28-eth0-rx-0-21swapper/323:51:523
29805050,0irq/28-eth0-rx-0-21swapper/323:49:463
29805050,0irq/28-eth0-rx-0-21swapper/323:41:303
29805050,0irq/28-eth0-rx-0-21swapper/322:46:403
29805050,0irq/28-eth0-rx-0-21swapper/322:34:303
29805050,0irq/28-eth0-rx-0-21swapper/322:16:383
29805050,0irq/28-eth0-rx-0-21swapper/320:26:393
259950,0migration/229230-21gltestperf00:26:322
259950,0migration/229168-21kthreadcore20:06:352
259950,0migration/222761-21sh22:09:092
259950,0migration/221903-21kthreadcore20:01:362
259950,0migration/219150-21kthreadcore23:41:372
259950,0migration/21914-21fschecks_count20:56:322
259950,0migration/216508-21kthreadcore21:46:362
249950,0watchdog/23875-21python20:31:412
249950,0watchdog/227104-21chrt21:34:492
179950,0migration/18152-21fschecks_time23:36:331
179950,0migration/16525-21kthreadcore22:36:361
179950,0migration/16088-21kthreadcore21:41:371
179950,0migration/13562-21kthreadcore23:51:381
179950,0migration/119681-21kthreadcore21:06:371
179950,0migration/11906-21kthreadcore19:46:351
179950,0migration/118985-21munin-node00:01:321
179950,0migration/118708-21timerandwakeup23:01:431
179950,0migration/111266-21unixbench_singl00:31:441
149950,0migration/09761-21kthreadcore21:41:380
149950,0migration/09580-21idleruntime22:21:340
149950,0migration/09331-21kthreadcore23:36:370
149950,0migration/08539-21kthreadcore22:01:360
149950,0migration/06628-21kthreadcore20:11:350
149950,0migration/0572-21fschecks_time22:16:320
149950,0migration/05233-21fschecks_count19:51:300
149950,0migration/03901-21unixbench-2d19:46:420
149950,0migration/032688-21kthreadcore00:46:360
149950,0migration/032204-21kthreadcore00:06:370
149950,0migration/031931-21taskset23:48:550
149950,0migration/031864-21kthreadcore23:11:360
149950,0migration/026035-21kthreadcore23:06:380
149950,0migration/023355-21kthreadcore00:41:380
149950,0migration/021914-21aten_r1power_vo21:51:300
149950,0migration/019523-21fschecks_count22:46:350
149950,0migration/015118-21taskset19:35:520
149950,0migration/014759-21kthreadcore20:41:360
149950,0migration/014674-21fschecks_count23:21:330
149950,0migration/012420-21kthreadcore21:01:370
149950,0migration/010716-21kthreadcore00:51:360
149950,0migration/010606-21kthreadcore23:16:370
80149944,0cyclictest0-21swapper/220:41:312
80149943,0cyclictest9662-21awk21:01:342
80149943,0cyclictest3524-21snmpd22:01:482
80149943,0cyclictest3524-21snmpd20:51:162
80149943,0cyclictest3524-21snmpd20:21:312
80149943,0cyclictest3524-21snmpd19:56:152
80149943,0cyclictest24011-21awk21:11:322
80149943,0cyclictest18908-21awk00:01:312
80149943,0cyclictest16528-21awk19:36:342
80149943,0cyclictest16528-21awk19:36:342
80149943,0cyclictest12983-21awk19:56:332
80149943,0cyclictest12445-21irqcore00:16:362
80139944,0cyclictest26596-40yum-updatesd-he21:33:261
80139944,0cyclictest0-21swapper/122:48:191
80139944,0cyclictest0-21swapper/122:41:411
80139943,0cyclictest9400-21awk19:31:331
80139943,0cyclictest6004-21awk20:36:331
80139943,0cyclictest3571-21lldpd22:57:461
80139943,0cyclictest3524-21snmpd21:16:471
80139943,0cyclictest3524-21snmpd21:15:171
80139943,0cyclictest3524-21snmpd20:26:311
80139943,0cyclictest3524-21snmpd20:03:161
80139943,0cyclictest3524-21snmpd19:42:301
80139943,0cyclictest3524-21snmpd19:40:301
80139943,0cyclictest3524-21snmpd19:40:301
80139943,0cyclictest32238-21awk23:31:331
80139943,0cyclictest30857-21sadc23:31:181
80139943,0cyclictest13189-21awk20:41:331
80129943,0cyclictest24130-21awk21:11:330
80129943,0cyclictest20167-21awk20:01:330
80129943,0cyclictest19486-21sadc00:21:190
80129943,0cyclictest13427-21awk23:01:340
339940,0migration/326254-21taskset20:51:163
339940,0migration/318641-21uptime20:41:443
339940,0migration/311594-21taskset20:38:003
329940,0watchdog/37135-21cut00:11:383
329940,0watchdog/30-21swapper/323:06:373
329940,0watchdog/30-21swapper/322:01:293
329940,0watchdog/30-21swapper/320:01:373
29815040,0irq/29-eth0-tx-1282-21munin-node20:56:320
29815040,0irq/29-eth0-tx-0-21swapper/223:36:282
29815040,0irq/29-eth0-tx-0-21swapper/223:11:362
29815040,0irq/29-eth0-tx-0-21swapper/222:51:382
29815040,0irq/29-eth0-tx-0-21swapper/222:11:332
29815040,0irq/29-eth0-tx-0-21swapper/221:56:462
29815040,0irq/29-eth0-tx-0-21swapper/221:51:332
29815040,0irq/29-eth0-tx-0-21swapper/221:42:052
29815040,0irq/29-eth0-tx-0-21swapper/200:46:342
29815040,0irq/29-eth0-tx-0-21swapper/200:32:022
29815040,0irq/29-eth0-tx-0-21swapper/200:11:252
29815040,0irq/29-eth0-tx-0-21swapper/021:21:300
29815040,0irq/29-eth0-tx-0-21swapper/019:41:320
29805040,0irq/28-eth0-rx-0-21swapper/322:36:303
259940,0migration/2864-21kthreadcore21:16:362
259940,0migration/28184-21latency_hist19:31:182
259940,0migration/27772-21runrttasks20:11:492
259940,0migration/27457-21kthreadcore23:16:362
259940,0migration/26107-21sh22:16:392
259940,0migration/25961-21gltestperf21:21:312
259940,0migration/226198-21fschecks_count22:31:312
259940,0migration/225065-21kthreadcore20:26:392
259940,0migration/224095-21kthreadcore23:06:372
259940,0migration/22073-21kthreadcore19:46:352
259940,0migration/217868-21kthreadcore21:06:362
259940,0migration/214683-21ntp_offset22:21:392
259940,0migration/212365-21runrttasks23:01:302
259940,0migration/211265-21timerandwakeup20:36:432
249940,0watchdog/218833-21kthreadcore23:21:372
249940,0watchdog/215671-21kthreadcore21:26:372
179940,0migration/19244-21kthreadcore23:16:361
179940,0migration/17310-21kthreadcore00:11:381
179940,0migration/14822-21kthreadcore22:16:371
179940,0migration/14227-21runrttasks00:46:421
179940,0migration/132491-21kthreadcore23:11:371
179940,0migration/128983-21fschecks_time00:26:321
179940,0migration/123921-21kthreadcore00:21:391
179940,0migration/121039-21netstat00:56:401
179940,0migration/118240-21kthreadcore20:21:361
179940,0migration/117356-21cpuspeed_turbos22:26:321
179940,0migration/115539-21kthreadcore21:46:361
179940,0migration/114113-21kthreadcore23:56:371
179940,0migration/113908-21kthreadcore19:56:351
179940,0migration/112813-21fschecks_count21:26:321
179940,0migration/111553-21taskset19:55:071
179940,0migration/111015-21kthreadcore21:01:361
169940,0watchdog/122216-21fschecks_count00:41:341
169940,0watchdog/114900-21tr00:16:381
169940,0watchdog/112769-21ssh00:51:421
169940,0watchdog/10-21swapper/121:51:371
169940,0watchdog/10-21swapper/121:36:331
149940,0migration/027126-21irqrtprio22:31:350
149940,0migration/01207-21pmu-power22:51:400
8305030,0irq/26-0000:00:0-21swapper/321:16:233
80139933,0cyclictest31081-21awk20:31:331
80139933,0cyclictest16314-21awk22:06:341
80139932,0cyclictest27220-21expr20:06:311
80139932,0cyclictest12739-21cut22:21:371
80139930,0cyclictest9196-21perl20:16:301
80129933,0cyclictest0-21swapper/019:56:300
80129932,0cyclictest30066-21sensors22:11:400
80129932,0cyclictest23861-21awk20:26:330
80129932,0cyclictest23761-21awk23:26:350
80129932,0cyclictest18303-21expr00:01:290
80129932,0cyclictest16345-21awk22:06:350
80129932,0cyclictest16117-21awk00:56:350
80129932,0cyclictest11424-21awk22:41:350
80129930,0cyclictest8402-21munin-node20:16:340
80129930,0cyclictest4091-21diskstats22:56:330
80129930,0cyclictest28639-21perl21:36:330
80129930,0cyclictest26297-21munin-node20:06:300
80129930,0cyclictest16890-21kthreadcore21:46:370
80129930,0cyclictest0-21swapper/021:26:320
329930,0watchdog/30-21swapper/321:11:293
329930,0watchdog/30-21swapper/319:56:213
329930,0watchdog/30-21swapper/319:38:453
329930,0watchdog/30-21swapper/319:38:453
29805030,0irq/28-eth0-rx-0-21swapper/319:51:283
249930,0watchdog/20-21swapper/219:41:212
179930,0migration/131177-21kthreadcore00:06:371
179930,0migration/126272-21turbostat20:56:121
169930,0watchdog/113211-21aten_r1power_fr00:36:301
169930,0watchdog/10-21swapper/123:06:371
169930,0watchdog/10-21swapper/122:31:291
169930,0watchdog/10-21swapper/121:56:371
169930,0watchdog/10-21swapper/120:49:011
169930,0watchdog/10-21swapper/120:11:211
149930,0migration/030399-21runrttasks21:56:240
80149920,0cyclictest0-21swapper/220:16:172
80129921,0cyclictest3524-21snmpd00:21:200
80129921,0cyclictest0-21swapper/023:31:200
80129920,0cyclictest476-21latency_hist23:51:190
80129920,0cyclictest0-21swapper/023:56:240
80129920,0cyclictest0-21swapper/020:21:300
80129920,0cyclictest0-21swapper/000:36:200
169920,0watchdog/10-21swapper/120:56:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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