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2025-11-21 - 04:16
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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
Characteristics of the 100 highest latencies:
System rackcslot2.osadl.org (updated Fri Nov 21, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
296727258,9sleep10-21swapper/119:04:211
14802710,1sleep10-21swapper/123:41:461
313126754,8sleep00-21swapper/019:06:030
228482650,0sleep10-21swapper/121:13:041
6172640,0sleep00-21swapper/021:27:070
3382993810,0cyclictest7442-21kworker/u4:023:42:181
22882330,0sleep10-21swapper/100:28:131
338299318,18cyclictest0-21swapper/122:48:381
3381993111,2cyclictest0-21swapper/021:26:000
3381993010,19cyclictest0-21swapper/000:09:090
3382992828,0cyclictest0-21swapper/122:14:361
3381992826,1cyclictest6851-21ssh23:04:090
3381992810,12cyclictest0-21swapper/023:42:590
3382992727,0cyclictest0-21swapper/120:03:311
3382992722,4cyclictest28039-21ssh21:21:181
3382992722,3cyclictest23244-21apache222:05:261
338299271,3cyclictest0-21swapper/121:22:051
3382992710,0cyclictest0-21swapper/119:21:201
338199275,22cyclictest0-21swapper/023:21:040
3381992711,13cyclictest0-21swapper/022:34:000
338299260,22cyclictest16975-21diskmemload23:21:221
3382992524,0cyclictest0-21swapper/100:18:321
3382992518,5cyclictest23258-21apache200:35:201
3382992511,5cyclictest0-21swapper/122:08:531
338299250,20cyclictest0-21swapper/120:52:091
338199258,16cyclictest0-21swapper/020:37:090
3381992524,1cyclictest81ktimersoftd/021:10:300
3381992521,4cyclictest23258-21apache223:21:470
3381992518,5cyclictest23258-21apache221:19:300
3382992423,1cyclictest0-21swapper/123:57:411
3382992423,1cyclictest0-21swapper/119:22:101
3381992418,4cyclictest23258-21apache221:45:590
3381992411,4cyclictest0-21swapper/021:16:220
3381992410,8cyclictest0-21swapper/022:57:050
3381992410,8cyclictest0-21swapper/021:37:110
3381992410,6cyclictest0-21swapper/000:27:040
3381992410,14cyclictest0-21swapper/021:53:440
338299236,11cyclictest0-21swapper/123:02:051
3382992322,1cyclictest0-21swapper/121:09:151
3382992320,2cyclictest3379-21cyclictest21:34:351
3382992315,4cyclictest0-21swapper/123:27:051
3382992313,4cyclictest97850irq/107-eth1-rx21:29:561
3382992311,8cyclictest23258-21apache221:42:001
3382992310,7cyclictest0-21swapper/100:13:451
3382992310,7cyclictest0-21swapper/100:13:451
3382992310,2cyclictest0-21swapper/119:14:371
3382992310,1cyclictest0-21swapper/120:11:491
3381992319,3cyclictest23244-21apache223:09:540
3381992315,4cyclictest12511-21ls20:52:130
338199230,11cyclictest0-21swapper/020:27:050
338299225,10cyclictest0-21swapper/119:46:591
3382992222,0cyclictest0-21swapper/122:54:401
3382992210,6cyclictest0-21swapper/123:46:511
338299220,9cyclictest0-21swapper/100:07:011
338299220,21cyclictest0-21swapper/100:06:001
3381992221,1cyclictest0-21swapper/022:24:250
3381992218,4cyclictest0-21swapper/019:08:370
3381992210,8cyclictest0-21swapper/022:49:460
3381992210,7cyclictest0-21swapper/021:47:050
3381992210,1cyclictest0-21swapper/022:10:260
257222210,0sleep10-21swapper/122:57:581
338299213,10cyclictest0-21swapper/119:36:551
3382992119,1cyclictest24-21ksoftirqd/121:57:041
3382992116,4cyclictest23258-21apache221:38:061
3382992115,3cyclictest636-21nscd20:11:391
3382992110,7cyclictest0-21swapper/119:31:591
338199212,18cyclictest0-21swapper/022:17:060
3381992118,2cyclictest23244-21apache219:12:020
3381992116,4cyclictest23244-21apache200:22:250
3381992114,4cyclictest0-21swapper/020:11:310
3381992113,7cyclictest18540-21snmpd22:12:010
3381992110,8cyclictest0-21swapper/020:17:070
3381992110,6cyclictest0-21swapper/022:42:050
3381992110,3cyclictest0-21swapper/021:32:000
338199210,1cyclictest0-21swapper/020:12:040
1676222110,0sleep10-21swapper/122:33:041
142952210,0sleep00-21swapper/022:30:480
338299203,10cyclictest0-21swapper/120:42:001
3382992018,1cyclictest0-21swapper/122:41:411
3382992016,4cyclictest23258-21apache223:25:451
3382992010,5cyclictest0-21swapper/120:37:021
3382992010,5cyclictest0-21swapper/120:17:071
338199205,15cyclictest0-21swapper/023:15:400
338199203,9cyclictest0-21swapper/019:52:040
338199201,2cyclictest29724-21ssh23:36:110
3381992011,5cyclictest0-21swapper/021:59:290
3381992010,6cyclictest0-21swapper/020:59:000
3381992010,6cyclictest0-21swapper/000:17:060
2065722010,0sleep00-21swapper/022:38:500
338299196,7cyclictest0-21swapper/122:22:031
338299195,11cyclictest0-21swapper/100:22:061
3382991916,2cyclictest3379-21cyclictest22:31:111
3382991916,2cyclictest23258-21apache221:54:461
3382991910,6cyclictest0-21swapper/122:41:581
3382991910,4cyclictest0-21swapper/123:07:021
338299190,4cyclictest0-21swapper/123:52:301
338199193,10cyclictest0-21swapper/020:02:030
3381991918,1cyclictest23244-21apache223:59:460
3381991913,4cyclictest23258-21apache222:52:220
3381991911,5cyclictest97750irq/106-eth1-rx19:43:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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