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2025-01-18 - 11:06
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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 100 highest latencies:
System rack8slot4.osadl.org (updated Sat Jan 18, 2025 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33459212240179,48sleep50-21swapper/519:08:195
33438332239175,21sleep20-21swapper/219:06:072
33459292228169,18sleep40-21swapper/419:08:264
33460072227171,43sleep70-21swapper/719:09:347
33459252220181,24sleep00-21swapper/019:08:220
33437902220187,21sleep60-21swapper/619:05:316
33458792215185,19sleep10-21swapper/119:07:431
33438162211178,21sleep30-21swapper/319:05:523
334624399546,24cyclictest0-21swapper/022:45:460
334625899310,30cyclictest3441688-21cron22:15:014
334625899310,29cyclictest3346664-21apt-get19:11:424
3346243993127,3cyclictest3429118-21sh21:45:010
3346243993127,3cyclictest3429118-21sh21:45:010
334626899300,2cyclictest3381791-21sh20:15:017
334626899300,29cyclictest0-21swapper/721:16:437
334626899300,28cyclictest0-21swapper/720:05:017
334626199300,2cyclictest3441703-21latency_hist22:15:015
334625499300,2cyclictest3435301-21turbostat.cron22:00:013
334625499300,29cyclictest3451071-21apt-get22:36:443
334625499300,29cyclictest3426432-21munin-run21:40:013
334625299300,20cyclictest0-21swapper/220:01:442
334626899290,28cyclictest3410050-21apt-get21:06:427
334626899290,28cyclictest0-21swapper/721:35:017
334626899290,28cyclictest0-21swapper/719:36:467
3346263992927,1cyclictest3399023-21apt-get20:46:436
334626399290,28cyclictest3442235-21apt-get22:16:436
334626399290,28cyclictest3418143-21apt-get21:21:426
334626399290,28cyclictest0-21swapper/622:01:436
3346261992927,1cyclictest0-21swapper/519:16:425
334625899290,28cyclictest0-21swapper/419:41:444
3346254992927,1cyclictest0-21swapper/321:50:013
3346254992927,1cyclictest0-21swapper/321:50:013
334625499290,29cyclictest3455926-21sh22:45:013
334625499290,28cyclictest0-21swapper/323:16:413
3346252992927,2cyclictest3500965-21sh00:25:012
3346252992927,1cyclictest0-21swapper/221:21:432
3346252992927,1cyclictest0-21swapper/220:15:012
334625299290,28cyclictest0-21swapper/221:56:412
334625299290,28cyclictest0-21swapper/220:06:432
334625299290,1cyclictest3459670-21awk22:55:012
334625299290,1cyclictest0-21swapper/223:55:002
3346248992927,1cyclictest3475140-21apt-get23:31:401
3346248992927,1cyclictest0-21swapper/122:51:391
334624899290,28cyclictest0-21swapper/122:11:391
334624899290,28cyclictest0-21swapper/120:41:431
3346243992928,1cyclictest3348820-21latency_hist19:15:000
334626899284,0cyclictest0-21swapper/722:45:497
3346268992828,0cyclictest0-21swapper/719:56:457
3346268992826,1cyclictest3474612-21apt23:30:017
3346268992826,1cyclictest3360268-21idleruntime-cro19:35:017
3346268992826,1cyclictest0-21swapper/722:50:027
3346268992826,1cyclictest0-21swapper/700:01:447
334626899280,27cyclictest0-21swapper/722:10:017
334626899280,1cyclictest3424266-21apt-get21:36:437
334626899280,1cyclictest0-21swapper/722:05:017
334626899280,0cyclictest0-21swapper/720:21:427
3346263992828,0cyclictest0-21swapper/619:36:466
3346263992824,3cyclictest3456690-21turbostat.cron22:50:016
334626399280,27cyclictest0-21swapper/619:21:446
3346261992827,1cyclictest0-21swapper/523:11:405
3346261992827,1cyclictest0-21swapper/520:36:425
3346261992827,1cyclictest0-21swapper/520:21:415
3346261992826,1cyclictest0-21swapper/500:30:015
334626199280,0cyclictest0-21swapper/522:31:395
3346258992826,1cyclictest3381799-21apt-get20:15:024
3346258992824,3cyclictest3501722-21dump-pmu-power00:30:014
3346254992826,1cyclictest3355428-21apt-get19:26:433
334625499280,0cyclictest0-21swapper/320:41:433
3346252992828,0cyclictest0-21swapper/220:15:022
3346252992827,1cyclictest0-21swapper/223:35:012
3346252992827,1cyclictest0-21swapper/219:51:462
3346248992826,2cyclictest0-21swapper/120:51:471
3346243992827,1cyclictest0-21swapper/000:00:010
334624399280,28cyclictest0-21swapper/000:11:400
334624399280,27cyclictest0-21swapper/020:36:420
3346268992727,0cyclictest0-21swapper/700:36:447
3346268992725,2cyclictest0-21swapper/720:55:017
3346268992725,1cyclictest0-21swapper/723:50:007
3346263992727,0cyclictest0-21swapper/620:56:416
3346261992727,0cyclictest0-21swapper/523:36:425
3346261992727,0cyclictest0-21swapper/523:16:415
3346261992727,0cyclictest0-21swapper/520:15:025
3346261992727,0cyclictest0-21swapper/519:41:435
3346261992726,1cyclictest0-21swapper/523:56:435
3346261992725,1cyclictest0-21swapper/521:01:465
334626199270,0cyclictest0-21swapper/522:16:435
3346258992727,0cyclictest0-21swapper/423:01:434
3346258992727,0cyclictest0-21swapper/422:16:434
334625899270,0cyclictest0-21swapper/400:21:434
3346254992727,0cyclictest0-21swapper/319:56:453
3346254992726,1cyclictest0-21swapper/323:25:013
3346252992727,0cyclictest0-21swapper/223:35:022
3346252992727,0cyclictest0-21swapper/223:16:412
3346252992727,0cyclictest0-21swapper/222:31:392
3346252992727,0cyclictest0-21swapper/220:31:442
3346252992727,0cyclictest0-21swapper/220:26:422
3346252992727,0cyclictest0-21swapper/200:36:442
3346252992724,2cyclictest0-21swapper/223:10:012
3346248992725,1cyclictest0-21swapper/119:31:471
3346248992724,2cyclictest3495575-21debian-sa100:15:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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