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2026-08-11 - 05:34
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Tue Aug 11, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1108126756,7sleep10-21swapper/119:06:011
1083326756,7sleep00-21swapper/019:03:350
207892650,0sleep10-21swapper/121:45:511
11469993318,15cyclictest0-21swapper/100:21:171
11469993210,2cyclictest0-21swapper/121:10:291
11468993010,11cyclictest0-21swapper/020:18:320
11469992826,2cyclictest0-21swapper/119:09:451
11469992810,13cyclictest0-21swapper/100:35:591
11469992810,12cyclictest0-21swapper/121:19:251
1146999280,1cyclictest0-21swapper/121:58:231
1146899280,0cyclictest0-21swapper/021:55:270
11469992710,6cyclictest0-21swapper/123:31:391
1146999270,23cyclictest5438-21ssh00:28:171
1146999270,1cyclictest0-21swapper/123:18:431
11468992725,1cyclictest7713-21ssh00:30:360
11469992626,0cyclictest0-21swapper/123:46:411
11468992610,1cyclictest0-21swapper/021:58:420
11469992510,5cyclictest0-21swapper/122:08:291
11469992510,1cyclictest0-21swapper/122:40:511
11469992510,15cyclictest0-21swapper/100:16:581
11468992510,14cyclictest0-21swapper/022:49:040
1146899250,1cyclictest7104-21sed23:43:290
1146899250,0cyclictest0-21swapper/000:11:520
11469992424,0cyclictest0-21swapper/123:51:401
11469992410,8cyclictest0-21swapper/123:23:311
11469992410,2cyclictest0-21swapper/120:38:111
11468992424,0cyclictest0-21swapper/022:57:140
11468992424,0cyclictest0-21swapper/000:33:290
11468992411,6cyclictest0-21swapper/021:13:260
11468992410,5cyclictest0-21swapper/022:28:280
11469992323,0cyclictest0-21swapper/119:38:541
11469992321,1cyclictest16274-21ssh23:56:531
11469992319,3cyclictest16132-21apache220:23:221
11468992323,0cyclictest0-21swapper/000:01:540
1146899232,2cyclictest0-21swapper/022:38:430
11468992317,5cyclictest10416-21runrttasks21:31:510
1146899231,6cyclictest0-21swapper/023:14:130
1146899231,6cyclictest0-21swapper/023:14:130
11468992310,4cyclictest0-21swapper/023:03:110
11468992310,4cyclictest0-21swapper/021:25:140
11468992310,3cyclictest0-21swapper/023:52:550
1146899230,23cyclictest0-21swapper/021:37:570
11469992216,5cyclictest0-21swapper/121:50:571
11469992214,7cyclictest16132-21apache222:16:131
11469992210,9cyclictest0-21swapper/122:54:191
1146899225,8cyclictest0-21swapper/020:33:270
1146899222,19cyclictest0-21swapper/023:31:320
11468992218,3cyclictest25852-21users23:23:320
11468992215,5cyclictest0-21swapper/022:36:350
11468992210,9cyclictest0-21swapper/020:38:280
11468992210,5cyclictest0-21swapper/020:43:250
1146899220,3cyclictest0-21swapper/019:18:260
1146899220,1cyclictest24157-21kworker/u4:223:34:340
1832422110,0sleep10-21swapper/119:23:321
1146999211,2cyclictest0-21swapper/123:38:311
11469992110,6cyclictest0-21swapper/123:58:351
11469992110,5cyclictest0-21swapper/122:58:231
11469992110,5cyclictest0-21swapper/122:48:161
11469992110,5cyclictest0-21swapper/122:23:211
11469992110,11cyclictest0-21swapper/120:19:571
11468992120,0cyclictest81ktimersoftd/022:08:550
11468992114,7cyclictest0-21swapper/022:20:440
11468992110,4cyclictest0-21swapper/020:08:220
11468992110,1cyclictest0-21swapper/022:44:430
1146899210,21cyclictest0-21swapper/021:08:110
1146999204,10cyclictest0-21swapper/120:08:251
1146999203,16cyclictest0-21swapper/121:28:361
1146999202,12cyclictest0-21swapper/119:53:281
11469992018,1cyclictest15494-21needreboot21:38:281
11469992014,1cyclictest26211-21sh00:11:201
1146999201,19cyclictest0-21swapper/100:23:191
1146999201,0cyclictest0-21swapper/122:43:191
11469992010,5cyclictest0-21swapper/122:03:221
11469992010,3cyclictest0-21swapper/123:03:231
1146899209,7cyclictest24983-21apache_volume19:43:220
1146899205,11cyclictest0-21swapper/019:48:290
11468992013,1cyclictest11466-21cyclictest22:27:060
1146899201,1cyclictest0-21swapper/022:16:060
11468992010,4cyclictest0-21swapper/021:08:220
11468992010,4cyclictest0-21swapper/019:33:240
11468992010,3cyclictest0-21swapper/019:38:250
1146899200,20cyclictest0-21swapper/000:06:340
531321910,0sleep10-21swapper/120:13:341
1146999193,5cyclictest0-21swapper/119:43:301
1146999192,7cyclictest32661-21ps23:33:301
11469991918,1cyclictest0-21swapper/121:37:111
1146999191,7cyclictest16409-21sensors_temp19:18:311
1146999191,7cyclictest0-21swapper/120:07:431
11469991911,6cyclictest231ktimersoftd/119:13:291
1146999191,14cyclictest25098-21diskmemload21:23:251
11469991911,4cyclictest0-21swapper/100:03:271
1146999190,15cyclictest25312-21kworker/u4:221:14:061
11468991918,1cyclictest16132-21apache221:49:390
11468991910,7cyclictest0-21swapper/000:15:290
11468991910,3cyclictest0-21swapper/020:53:270
11468991910,3cyclictest0-21swapper/019:28:200
11468991910,1cyclictest0-21swapper/021:42:350
1146899190,18cyclictest0-21swapper/021:44:050
2557921810,0sleep10-21swapper/121:53:171
1146999186,6cyclictest0-21swapper/120:28:211
1146999184,9cyclictest0-21swapper/121:03:231
1146999183,7cyclictest0-21swapper/120:58:211
1146999183,6cyclictest0-21swapper/119:51:321
1146999182,11cyclictest0-21swapper/120:53:251
11469991810,4cyclictest0-21swapper/119:33:291
11469991810,3cyclictest0-21swapper/122:28:351
11469991810,2cyclictest0-21swapper/122:33:151
1146999180,9cyclictest0-21swapper/120:43:331
1146999180,11cyclictest0-21swapper/122:18:231
1146899184,7cyclictest21003-21apache_processe23:18:230
1146899183,7cyclictest32611-21latency_hist20:03:110
1146899181,8cyclictest10227-21/usr/sbin/munin23:03:270
11468991818,0cyclictest0-21swapper/023:54:210
1146899181,5cyclictest0-21swapper/020:23:270
1146899181,11cyclictest0-21swapper/023:38:250
11468991810,4cyclictest0-21swapper/020:13:300
11468991810,4cyclictest0-21swapper/019:18:110
11468991810,3cyclictest0-21swapper/022:07:250
11468991810,3cyclictest0-21swapper/019:53:250
1146999174,7cyclictest0-21swapper/119:28:241
11469991713,1cyclictest16149-21apache223:14:501
11469991713,1cyclictest16149-21apache223:14:501
11469991713,1cyclictest0-21swapper/123:08:231
1146999170,10cyclictest0-21swapper/120:48:251
1146899176,8cyclictest0-21swapper/019:23:330
1146899176,5cyclictest0-21swapper/020:03:230
1146899173,8cyclictest30946-21/usr/sbin/munin00:18:270
1146899173,7cyclictest0-21swapper/000:24:330
1146899173,6cyclictest0-21swapper/021:18:310
11468991710,4cyclictest0-21swapper/020:58:300
11468991710,2cyclictest0-21swapper/023:08:230
11468991710,2cyclictest0-21swapper/019:08:260
1146999165,3cyclictest0-21swapper/120:40:561
1146999153,7cyclictest0-21swapper/119:58:231
11468991510,2cyclictest0-21swapper/020:28:280
1146899150,6cyclictest19344-21munin-run20:53:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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