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2026-03-09 - 23:52
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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 highest latencies:
System rackcslot2.osadl.org (updated Mon Mar 09, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65992750,2sleep11116199cyclictest12:24:371
1078827150,16sleep10-21swapper/107:07:261
1093226856,8sleep00-21swapper/007:08:550
1116199333,29cyclictest16887-21wc10:24:441
11160993310,2cyclictest0-21swapper/011:56:060
1116099300,29cyclictest0-21swapper/009:40:000
11161992927,1cyclictest0-21swapper/111:36:041
11161992823,4cyclictest231ktimersoftd/109:29:371
11161992711,5cyclictest0-21swapper/110:50:151
11161992710,6cyclictest0-21swapper/112:09:381
11161992521,2cyclictest0-21swapper/109:49:351
11160992510,6cyclictest0-21swapper/012:11:170
11160992510,5cyclictest0-21swapper/010:44:390
1116099250,24cyclictest0-21swapper/009:07:460
1116099250,22cyclictest0-21swapper/008:24:320
11161992423,0cyclictest231ktimersoftd/112:14:391
11161992410,7cyclictest0-21swapper/112:19:381
1116099246,16cyclictest0-21swapper/007:18:260
11160992424,0cyclictest0-21swapper/007:28:210
11160992418,5cyclictest20974-21apache210:32:170
11160992417,6cyclictest20974-21apache210:36:310
11160992410,3cyclictest0-21swapper/011:59:380
1116099240,1cyclictest0-21swapper/009:58:520
11161992310,11cyclictest0-21swapper/109:56:421
11161992310,10cyclictest0-21swapper/110:04:371
1116199230,6cyclictest0-21swapper/112:05:341
1116099236,16cyclictest0-21swapper/007:23:060
1116099233,19cyclictest0-21swapper/011:35:070
11160992323,0cyclictest0-21swapper/011:06:340
11160992323,0cyclictest0-21swapper/010:09:310
1116099232,18cyclictest0-21swapper/010:21:580
1116099231,2cyclictest0-21swapper/012:27:210
11160992310,1cyclictest0-21swapper/010:06:470
1116099230,0cyclictest0-21swapper/007:53:080
1116199226,10cyclictest0-21swapper/107:29:421
1116199225,9cyclictest23578-21/usr/sbin/munin07:39:421
11161992220,1cyclictest24962-21munin-node10:40:061
11161992213,4cyclictest100150irq/106-eth1-rx09:10:191
11161992210,9cyclictest0-21swapper/111:22:121
11161992210,5cyclictest0-21swapper/111:07:301
11161992210,5cyclictest0-21swapper/110:19:431
11161992210,5cyclictest0-21swapper/108:39:481
11161992210,3cyclictest0-21swapper/108:44:371
1116099226,12cyclictest0-21swapper/012:34:420
1116099223,18cyclictest0-21swapper/012:15:180
11160992220,1cyclictest11542-21ls12:29:450
11160992218,4cyclictest21002-21apache211:50:150
11160992210,5cyclictest0-21swapper/009:23:540
11160992210,11cyclictest0-21swapper/011:42:300
11160992210,10cyclictest0-21swapper/009:36:450
1572322110,0sleep10-21swapper/112:35:541
1116199218,7cyclictest636-21nscd09:38:231
1116199215,7cyclictest0-21swapper/110:12:141
1116199212,10cyclictest0-21swapper/112:02:451
11161992118,2cyclictest20974-21apache208:50:171
11161992117,3cyclictest20974-21apache209:08:301
1116199211,13cyclictest0-21swapper/107:49:411
11161992110,8cyclictest0-21swapper/111:34:121
11161992110,7cyclictest0-21swapper/109:46:341
11161992110,6cyclictest0-21swapper/111:12:241
11160992119,1cyclictest20974-21apache209:25:320
11160992117,4cyclictest20974-21apache210:18:130
11160992115,0cyclictest81ktimersoftd/011:23:120
1116099211,4cyclictest0-21swapper/012:04:260
11160992110,5cyclictest0-21swapper/010:39:370
11160992110,3cyclictest0-21swapper/011:24:470
11160992110,3cyclictest0-21swapper/009:31:210
1116199205,6cyclictest10404-21ssh11:44:431
1116199204,4cyclictest24946-21apache_processe07:44:371
1116199204,11cyclictest0-21swapper/107:09:391
1116199203,7cyclictest29843-21ls07:54:441
11161992014,4cyclictest0-21swapper/109:15:391
11161992012,6cyclictest317442sleep110:00:491
11161992012,4cyclictest0-21swapper/110:35:321
1116199201,1cyclictest0-21swapper/111:27:261
11161992011,4cyclictest0-21swapper/111:49:411
11161992010,4cyclictest0-21swapper/112:29:361
11161992010,4cyclictest0-21swapper/107:34:271
11161992010,4cyclictest0-21swapper/107:22:371
11161992010,3cyclictest0-21swapper/111:39:461
11161992010,3cyclictest0-21swapper/109:26:171
11161992010,1cyclictest0-21swapper/110:29:381
1116099204,10cyclictest31247-21irqstats07:59:430
1116099203,11cyclictest0-21swapper/009:14:370
11160992014,5cyclictest20974-21apache210:28:380
11160992010,5cyclictest0-21swapper/010:58:420
11160992010,4cyclictest0-21swapper/011:13:390
11160992010,4cyclictest0-21swapper/009:47:180
11160992010,10cyclictest0-21swapper/008:50:590
1116099200,3cyclictest1199-21runrttasks10:49:400
1116099200,1cyclictest0-21swapper/008:17:250
1116099200,17cyclictest0-21swapper/008:42:140
2519821910,0sleep00-21swapper/009:52:140
1116199192,7cyclictest10059-21ssh10:59:451
11161991918,1cyclictest20974-21apache209:23:541
11161991916,2cyclictest11158-21cyclictest07:18:231
11161991916,0cyclictest0-21swapper/111:56:141
11161991914,4cyclictest20974-21apache208:17:441
1116199190,12cyclictest0-21swapper/111:14:391
1116099193,9cyclictest0-21swapper/009:09:390
1116099192,5cyclictest19245-21/usr/sbin/munin07:29:390
1116099191,9cyclictest0-21swapper/008:19:450
11160991917,1cyclictest0-21swapper/011:45:030
1116099191,6cyclictest0-21swapper/007:44:420
11160991913,4cyclictest100150irq/106-eth1-rx10:03:320
11160991913,2cyclictest81ktimersoftd/012:23:310
11160991910,7cyclictest0-21swapper/011:18:080
11160991910,5cyclictest0-21swapper/010:59:450
11160991910,3cyclictest0-21swapper/007:34:400
11160991910,3cyclictest0-21swapper/007:09:410
1116199183,5cyclictest0-21swapper/107:59:391
11161991811,3cyclictest100250irq/107-eth1-rx09:40:191
11161991810,3cyclictest0-21swapper/110:45:031
11161991810,1cyclictest0-21swapper/110:14:581
1116099182,5cyclictest0-21swapper/007:39:410
1116199175,6cyclictest0-21swapper/108:34:411
1116199171,8cyclictest21603-21taskset08:59:381
11161991710,4cyclictest0-21swapper/108:12:101
11161991710,3cyclictest0-21swapper/107:24:411
11161991710,0cyclictest100250irq/107-eth1-rx10:54:491
1116099174,10cyclictest0-21swapper/007:54:350
1116099171,7cyclictest16345-21/usr/sbin/munin08:44:430
11160991711,3cyclictest100150irq/106-eth1-rx11:30:210
11160991710,2cyclictest0-21swapper/008:59:330
11160991710,2cyclictest0-21swapper/008:39:260
1116199163,6cyclictest21205-21latency_hist08:59:261
1116199160,12cyclictest0-21swapper/108:24:421
1116099161,9cyclictest0-21swapper/008:04:370
11160991612,4cyclictest0-21swapper/008:09:400
1116099161,10cyclictest0-21swapper/008:54:420
11160991610,2cyclictest0-21swapper/008:29:320
1122321510,0sleep10-21swapper/108:30:551
1116199155,7cyclictest0-21swapper/108:04:401
11161991513,1cyclictest231ktimersoftd/108:19:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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