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2026-08-15 - 22:15
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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 Sat Aug 15, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
563927057,8sleep10-21swapper/107:07:351
110572690,1sleep00-21swapper/011:56:440
551026654,8sleep00-21swapper/007:06:130
320802640,0sleep10-21swapper/110:54:131
5877994510,34cyclictest0-21swapper/111:51:251
5877994310,32cyclictest0-21swapper/107:52:341
5877994211,30cyclictest0-21swapper/107:17:551
5877994210,31cyclictest0-21swapper/111:58:221
5877994210,31cyclictest0-21swapper/107:08:251
5877994111,29cyclictest0-21swapper/108:08:241
5877994111,24cyclictest0-21swapper/112:08:211
5877994110,30cyclictest0-21swapper/108:53:251
5877994110,27cyclictest0-21swapper/108:38:291
5877994010,29cyclictest0-21swapper/112:04:331
5877994010,29cyclictest0-21swapper/110:32:161
5877994010,29cyclictest0-21swapper/109:24:541
5877994010,28cyclictest10227-21ssh11:54:471
5877993910,29cyclictest0-21swapper/109:31:571
5877993910,29cyclictest0-21swapper/109:13:231
5877993910,29cyclictest0-21swapper/107:58:251
5877993910,28cyclictest0-21swapper/110:33:381
5877993910,28cyclictest0-21swapper/109:10:571
5877993910,27cyclictest25953-21ssh12:17:491
5877993812,24cyclictest0-21swapper/109:56:531
5877993810,28cyclictest0-21swapper/108:28:081
5877993810,27cyclictest0-21swapper/111:06:311
5877993810,27cyclictest0-21swapper/108:32:331
5877993810,27cyclictest0-21swapper/107:31:131
5877993810,26cyclictest0-21swapper/109:02:561
5877993810,11cyclictest0-21swapper/110:26:201
5877993710,27cyclictest0-21swapper/110:48:331
5877993710,26cyclictest0-21swapper/111:36:201
5877993710,26cyclictest0-21swapper/111:08:101
5877993710,26cyclictest0-21swapper/110:14:101
5877993710,23cyclictest0-21swapper/107:38:361
5877993611,20cyclictest0-21swapper/107:18:211
5877993610,25cyclictest0-21swapper/110:44:231
5877993610,25cyclictest0-21swapper/109:43:291
5877993610,25cyclictest0-21swapper/109:42:271
5877993610,24cyclictest0-21swapper/112:30:451
5877993610,21cyclictest0-21swapper/108:33:291
5877993510,25cyclictest0-21swapper/111:18:191
5877993510,24cyclictest0-21swapper/112:33:251
5877993510,24cyclictest0-21swapper/111:43:211
5877993510,24cyclictest0-21swapper/111:43:211
5877993510,24cyclictest0-21swapper/111:31:541
5877993510,22cyclictest0-21swapper/110:13:071
5877993410,23cyclictest0-21swapper/112:21:581
5877993410,23cyclictest0-21swapper/111:39:371
5877993410,23cyclictest0-21swapper/111:23:281
5877993410,23cyclictest0-21swapper/110:03:551
5877993410,23cyclictest0-21swapper/109:33:231
5877993410,23cyclictest0-21swapper/109:22:191
5877993410,23cyclictest0-21swapper/109:04:281
5877993410,22cyclictest0-21swapper/109:50:101
5877993310,23cyclictest0-21swapper/110:19:051
5877993310,22cyclictest0-21swapper/108:44:331
5877993210,22cyclictest0-21swapper/111:17:331
5877993210,21cyclictest0-21swapper/112:23:231
5877993210,21cyclictest0-21swapper/110:42:431
5877993210,21cyclictest0-21swapper/110:02:051
5877993210,20cyclictest0-21swapper/108:48:271
5876993232,0cyclictest0-21swapper/009:02:430
587799304,25cyclictest16018-21/usr/sbin/munin07:33:221
5877993010,20cyclictest0-21swapper/108:18:291
5877993010,19cyclictest0-21swapper/110:58:091
5877992910,5cyclictest0-21swapper/107:53:221
587799281,11cyclictest0-21swapper/107:23:231
5877992810,4cyclictest0-21swapper/108:05:351
587699260,6cyclictest0-21swapper/012:08:260
5877992510,7cyclictest0-21swapper/107:43:251
5876992510,5cyclictest0-21swapper/010:48:270
5876992419,4cyclictest15714-21apache211:23:210
587699241,6cyclictest19858-21/usr/sbin/munin10:38:230
5876992410,9cyclictest0-21swapper/010:47:320
5876992410,5cyclictest0-21swapper/009:18:270
5876992410,5cyclictest0-21swapper/007:17:340
5877992310,13cyclictest0-21swapper/108:14:161
587699235,8cyclictest0-21swapper/012:23:210
5876992322,1cyclictest15717-21apache209:09:440
5876992313,7cyclictest15717-21apache210:18:090
5876992310,8cyclictest0-21swapper/008:52:550
5876992310,5cyclictest0-21swapper/009:48:470
5876992222,0cyclictest0-21swapper/009:54:510
5876992218,3cyclictest15714-21apache208:08:290
5876992211,11cyclictest0-21swapper/012:06:110
5876992210,3cyclictest0-21swapper/011:13:260
5876992210,0cyclictest0-21swapper/012:35:520
587699215,12cyclictest0-21swapper/008:53:240
587699215,10cyclictest0-21swapper/009:33:240
587699213,13cyclictest0-21swapper/008:28:210
5876992120,0cyclictest0-21swapper/007:58:510
5876992119,1cyclictest81ktimersoftd/010:11:570
5876992119,1cyclictest0-21swapper/011:08:240
5876992117,2cyclictest0-21swapper/008:13:300
5876992115,1cyclictest0-21swapper/011:20:180
5876992110,4cyclictest0-21swapper/011:32:140
143622110,1sleep00-21swapper/012:28:240
587699203,4cyclictest26390-21/usr/sbin/munin11:33:200
587699203,10cyclictest0-21swapper/009:43:200
5876992013,3cyclictest13494-21sh11:58:540
5876992012,6cyclictest4250-21kworker/u4:011:47:560
5876992012,6cyclictest4250-21kworker/u4:011:47:560
5876992010,7cyclictest0-21swapper/010:23:240
5876992010,6cyclictest0-21swapper/011:50:320
587699194,8cyclictest0-21swapper/007:33:210
587699193,3cyclictest0-21swapper/007:53:260
587699193,10cyclictest0-21swapper/008:43:310
587699191,7cyclictest15361-21/usr/sbin/munin07:33:090
5876991916,2cyclictest5874-21cyclictest10:03:190
5876991911,5cyclictest12624-21awk07:23:280
5876991910,4cyclictest0-21swapper/012:20:240
5876991910,4cyclictest0-21swapper/010:33:500
5876991910,3cyclictest17712-21/usr/sbin/munin07:38:220
5876991910,2cyclictest0-21swapper/010:58:200
5876991910,2cyclictest0-21swapper/010:03:090
5876991910,0cyclictest0-21swapper/009:27:140
587699190,15cyclictest15472-21rm10:32:050
587699185,5cyclictest15765-21kworker/0:108:08:090
5876991814,3cyclictest5874-21cyclictest11:42:050
5876991811,4cyclictest100150irq/106-eth1-rx08:33:220
587699181,11cyclictest0-21swapper/010:18:250
5876991810,0cyclictest0-21swapper/009:16:320
587699180,13cyclictest0-21swapper/010:57:380
5876991713,0cyclictest2322-21ssh09:28:230
5876991710,4cyclictest7073-21ls07:08:280
5876991710,4cyclictest0-21swapper/008:18:210
5876991710,2cyclictest0-21swapper/009:38:240
5876991710,2cyclictest0-21swapper/007:48:090
2556021710,0sleep00-21swapper/012:16:560
5876991616,0cyclictest0-21swapper/011:05:170
5876991614,1cyclictest22174-21memory07:48:260
5876991510,2cyclictest0-21swapper/008:38:210
5876991510,0cyclictest0-21swapper/007:18:250
5876991410,2cyclictest0-21swapper/009:03:200
5876991410,1cyclictest0-21swapper/008:25:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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