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2026-03-24 - 03:06
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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
Characteristics of all highest latencies:
System rackcslot2.osadl.org (updated Tue Mar 24, 2026 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2483227159,8sleep10-21swapper/119:06:131
62172690,0sleep00-21swapper/000:05:380
2471826855,9sleep00-21swapper/019:05:010
25312993310,21cyclictest0-21swapper/022:36:130
25313993030,0cyclictest0-21swapper/123:56:461
2531399301,25cyclictest0-21swapper/122:19:301
25312993030,0cyclictest0-21swapper/022:22:170
2531399290,24cyclictest0-21swapper/121:44:291
2531299282,7cyclictest0-21swapper/000:33:110
25313992710,2cyclictest0-21swapper/123:22:011
2531299273,2cyclictest0-21swapper/023:37:400
25312992727,0cyclictest0-21swapper/021:53:460
2531399260,8cyclictest0-21swapper/120:14:341
25312992613,12cyclictest0-21swapper/023:32:310
2531299260,0cyclictest0-21swapper/023:43:570
25313992520,2cyclictest25310-21cyclictest19:49:401
25313992510,2cyclictest0-21swapper/100:03:511
2531399250,22cyclictest6380-21/usr/sbin/munin19:44:381
25312992510,8cyclictest0-21swapper/023:20:360
25312992510,1cyclictest0-21swapper/023:57:290
25313992424,0cyclictest0-21swapper/122:43:361
25312992422,1cyclictest7-21ksoftirqd/022:54:360
25312992422,1cyclictest25310-21cyclictest21:27:280
25312992422,1cyclictest0-21swapper/022:50:140
25312992421,2cyclictest12689-21ssh00:14:450
25312992410,12cyclictest0-21swapper/000:25:220
2531299240,19cyclictest0-21swapper/023:59:370
2531399234,18cyclictest0-21swapper/121:09:401
2531399231,15cyclictest0-21swapper/123:25:241
25313992310,1cyclictest0-21swapper/100:30:371
25313992310,11cyclictest0-21swapper/123:15:021
25312992323,0cyclictest0-21swapper/019:10:130
25312992322,1cyclictest7-21ksoftirqd/023:51:300
25312992311,3cyclictest0-21swapper/019:19:390
25312992310,9cyclictest0-21swapper/020:29:410
25312992310,8cyclictest0-21swapper/020:24:330
25313992221,1cyclictest231ktimersoftd/122:07:471
25313992220,2cyclictest8223-21apache223:32:551
25313992210,6cyclictest0-21swapper/100:07:181
25313992210,3cyclictest0-21swapper/121:34:341
2531399220,1cyclictest15154-21apache_accesses22:49:311
2531299224,8cyclictest0-21swapper/022:10:440
2531299222,6cyclictest0-21swapper/000:21:310
25312992220,1cyclictest3456-21ls20:59:360
25312992214,3cyclictest0-21swapper/021:38:120
25312992210,5cyclictest0-21swapper/022:00:050
25312992210,3cyclictest0-21swapper/023:09:230
25312992210,3cyclictest0-21swapper/021:48:250
25312992210,10cyclictest0-21swapper/021:34:190
13452229,0sleep10-21swapper/120:54:361
283622210,0sleep00-21swapper/000:37:130
2531399219,7cyclictest28882-21chrt21:39:221
2531399218,10cyclictest0-21swapper/121:14:361
25313992120,1cyclictest636-21nscd23:35:381
25313992112,7cyclictest24335-21ssh22:16:501
25313992111,6cyclictest0-21swapper/121:19:311
25313992110,8cyclictest0-21swapper/100:09:421
25313992110,5cyclictest0-21swapper/123:49:361
25313992110,5cyclictest0-21swapper/100:15:141
25313992110,3cyclictest0-21swapper/120:09:321
2531399210,2cyclictest0-21swapper/121:57:111
2531399210,18cyclictest17899-21apache_processe21:24:311
2531299214,7cyclictest0-21swapper/021:43:450
2531299213,11cyclictest0-21swapper/019:29:320
25312992121,0cyclictest0-21swapper/020:57:410
25312992120,1cyclictest0-21swapper/023:44:320
25312992120,1cyclictest0-21swapper/019:28:170
25312992119,1cyclictest17738-21ssh22:08:010
25312992114,5cyclictest8208-21apache221:18:030
25312992114,4cyclictest0-21swapper/020:05:310
25312992110,5cyclictest0-21swapper/023:06:020
25312992110,0cyclictest0-21swapper/021:09:550
25312992110,0cyclictest0-21swapper/020:21:240
2531299210,18cyclictest7-21ksoftirqd/023:27:080
936222010,0sleep00-21swapper/021:55:460
313022010,0sleep10-21swapper/122:32:211
2531399203,11cyclictest0-21swapper/119:09:281
2531399202,17cyclictest6503-21diskmemload22:59:271
25313992018,2cyclictest8208-21apache222:25:571
25313992010,7cyclictest0-21swapper/123:40:121
25313992010,2cyclictest0-21swapper/119:34:381
2531299205,7cyclictest0-21swapper/019:34:370
25312992010,5cyclictest0-21swapper/022:27:140
1443022010,0sleep10-21swapper/122:03:551
2531399195,12cyclictest0-21swapper/120:44:341
2531399194,9cyclictest0-21swapper/119:59:361
2531399194,8cyclictest0-21swapper/119:24:331
2531399194,5cyclictest6503-21diskmemload23:09:381
25313991917,1cyclictest10886-21grep19:54:361
25313991916,2cyclictest8223-21apache220:24:201
25313991912,3cyclictest0-21swapper/121:01:341
25313991910,5cyclictest0-21swapper/100:27:311
25313991910,4cyclictest0-21swapper/122:54:251
25313991910,4cyclictest0-21swapper/120:40:241
25313991910,3cyclictest0-21swapper/121:32:591
2531399190,8cyclictest4162-21expr21:49:311
2531299195,5cyclictest16430-21/usr/sbin/munin20:09:350
25312991918,0cyclictest7-21ksoftirqd/020:44:330
25312991917,2cyclictest25310-21cyclictest20:42:430
25312991915,3cyclictest7-21ksoftirqd/000:09:340
25312991911,3cyclictest0-21swapper/022:59:340
2531299190,9cyclictest17937-21/usr/sbin/munin20:14:320
2531299190,8cyclictest23486-21kworker/0:022:39:400
2531399189,8cyclictest8223-21apache223:04:321
2531399187,7cyclictest4279-21apache_processe22:34:311
2531399184,6cyclictest0-21swapper/123:44:371
2531399184,5cyclictest0-21swapper/119:39:351
2531399184,12cyclictest0-21swapper/122:44:351
2531399183,14cyclictest0-21swapper/100:34:341
2531399181,8cyclictest0-21swapper/120:29:411
25313991817,0cyclictest17716-21ssh00:22:481
25313991811,3cyclictest0-21swapper/120:34:331
2531399181,11cyclictest0-21swapper/122:13:041
2531299181,12cyclictest27747-21/usr/sbin/munin19:14:350
25312991810,7cyclictest0-21swapper/023:15:260
25312991810,4cyclictest0-21swapper/021:19:430
25312991810,3cyclictest0-21swapper/022:46:520
25312991810,3cyclictest0-21swapper/022:29:280
25312991810,1cyclictest0-21swapper/019:59:340
3078221710,0sleep10-21swapper/119:22:521
25313991715,1cyclictest0-21swapper/119:33:201
25313991710,3cyclictest0-21swapper/121:04:331
2531299174,8cyclictest770-21irqbalance19:58:300
25312991711,3cyclictest0-21swapper/020:34:370
25312991710,1cyclictest7-21ksoftirqd/019:44:340
2531299170,8cyclictest0-21swapper/022:14:380
25313991610,3cyclictest0-21swapper/120:04:321
2531399160,9cyclictest0-21swapper/119:14:331
25312991610,3cyclictest0-21swapper/019:39:310
25312991610,2cyclictest0-21swapper/021:04:310
25313991510,4cyclictest0-21swapper/120:19:371
25312991510,3cyclictest0-21swapper/019:49:340
2531399142,5cyclictest0-21swapper/120:49:421
25312991412,1cyclictest7-21ksoftirqd/020:49:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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