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2026-04-08 - 20:54
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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 Wed Apr 08, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2684626755,8sleep10-21swapper/107:07:121
2678226754,8sleep00-21swapper/007:06:330
314982640,1sleep131502-21sort10:24:261
27220993210,18cyclictest0-21swapper/009:58:270
27221993010,19cyclictest0-21swapper/109:49:301
27221992928,0cyclictest0-21swapper/109:11:261
27221992911,10cyclictest100250irq/107-eth1-rx10:13:401
27221992910,2cyclictest0-21swapper/111:45:331
27220992910,0cyclictest0-21swapper/009:18:330
27221992828,0cyclictest0-21swapper/109:54:571
2722099280,26cyclictest0-21swapper/009:23:090
27221992725,2cyclictest4726-21apache209:32:051
27221992710,0cyclictest0-21swapper/109:40:051
27220992727,0cyclictest0-21swapper/010:37:090
27221992621,1cyclictest27218-21cyclictest12:05:521
27221992616,6cyclictest0-21swapper/112:14:291
27221992610,0cyclictest0-21swapper/110:39:461
27220992624,1cyclictest0-21swapper/012:29:520
27220992610,5cyclictest0-21swapper/009:29:560
27221992523,1cyclictest27696-21cstates10:19:251
27220992510,2cyclictest0-21swapper/008:10:540
27221992424,0cyclictest0-21swapper/110:34:321
2722099247,14cyclictest0-21swapper/011:49:250
27220992424,0cyclictest0-21swapper/010:09:410
27221992312,6cyclictest0-21swapper/109:16:341
2722099235,11cyclictest0-21swapper/007:34:260
27220992323,0cyclictest0-21swapper/011:36:500
27220992319,2cyclictest0-21swapper/012:14:120
27220992312,10cyclictest0-21swapper/009:41:180
2722099231,15cyclictest0-21swapper/010:27:460
27220992310,6cyclictest100250irq/107-eth1-rx09:44:590
27220992310,10cyclictest0-21swapper/007:59:290
2722199225,12cyclictest0-21swapper/108:24:251
27221992210,8cyclictest0-21swapper/112:20:111
2722199220,2cyclictest0-21swapper/109:22:121
27220992217,4cyclictest4726-21apache211:58:420
27220992213,5cyclictest0-21swapper/008:14:320
27220992210,8cyclictest0-21swapper/012:17:030
2722199217,9cyclictest0-21swapper/111:39:241
2722199216,8cyclictest0-21swapper/107:24:291
2722199215,12cyclictest22186-21ssh10:55:401
2722199213,9cyclictest0-21swapper/112:29:241
2722199213,17cyclictest0-21swapper/110:18:471
27221992115,4cyclictest4735-21apache208:29:271
27221992110,7cyclictest0-21swapper/111:53:111
27221992110,6cyclictest0-21swapper/107:49:231
27221992110,4cyclictest0-21swapper/111:30:361
27221992110,2cyclictest0-21swapper/112:34:331
2722099216,9cyclictest0-21swapper/010:54:230
2722099214,11cyclictest0-21swapper/011:20:350
2722099212,18cyclictest0-21swapper/011:14:290
27220992119,1cyclictest0-21swapper/010:40:350
27220992113,4cyclictest0-21swapper/010:44:410
27220992111,7cyclictest100450irq/109-eth1-tx12:23:270
27220992110,3cyclictest0-21swapper/010:59:250
27220992110,3cyclictest0-21swapper/010:03:070
2722099210,1cyclictest3815-21seq10:29:500
2722099210,15cyclictest16333-21kworker/u4:010:04:520
2722199205,10cyclictest0-21swapper/112:24:331
2722199204,13cyclictest0-21swapper/111:09:311
2722199202,7cyclictest0-21swapper/108:49:231
27221992012,3cyclictest100150irq/106-eth1-rx11:25:561
27221992011,7cyclictest4726-21apache208:04:271
27221992010,3cyclictest0-21swapper/107:54:231
2722099209,9cyclictest0-21swapper/011:30:300
2722099209,7cyclictest0-21swapper/012:05:360
2722099208,5cyclictest8774-21diskmemload12:03:410
27220992014,5cyclictest4735-21apache211:27:350
27220992013,7cyclictest0-21swapper/011:46:020
27220992012,5cyclictest0-21swapper/010:52:140
27220992011,4cyclictest0-21swapper/009:34:280
27220992010,9cyclictest0-21swapper/010:15:470
27220992010,6cyclictest0-21swapper/008:53:150
27220992010,5cyclictest0-21swapper/009:50:050
27220992010,3cyclictest0-21swapper/007:54:230
27220992010,2cyclictest0-21swapper/009:24:320
2722199194,8cyclictest27584-21/usr/sbin/munin09:34:271
2722199193,10cyclictest0-21swapper/111:04:271
27221991910,7cyclictest0-21swapper/110:04:181
27221991910,6cyclictest0-21swapper/108:09:241
27221991910,4cyclictest0-21swapper/111:19:191
27221991910,4cyclictest0-21swapper/107:09:251
2722199190,9cyclictest0-21swapper/107:34:221
2722199190,10cyclictest0-21swapper/108:39:271
2722099198,5cyclictest579-21cron08:44:130
2722099193,9cyclictest0-21swapper/012:24:280
27220991910,5cyclictest0-21swapper/008:04:250
27220991910,4cyclictest0-21swapper/012:34:220
27220991910,3cyclictest0-21swapper/011:39:240
27220991910,3cyclictest0-21swapper/011:12:100
2357221910,0sleep10-21swapper/109:29:101
526121810,0sleep10-21swapper/110:33:161
2722199186,7cyclictest0-21swapper/108:34:341
2722199185,8cyclictest0-21swapper/111:59:231
2722199184,10cyclictest0-21swapper/107:19:321
2722199183,9cyclictest0-21swapper/108:54:291
27221991814,2cyclictest4735-21apache207:40:591
27221991810,5cyclictest0-21swapper/112:09:251
27221991810,5cyclictest0-21swapper/111:14:241
27221991810,4cyclictest0-21swapper/111:01:411
27221991810,4cyclictest0-21swapper/108:44:311
27221991810,4cyclictest0-21swapper/107:14:261
27221991810,2cyclictest0-21swapper/110:02:031
27221991810,1cyclictest0-21swapper/111:55:031
2722199180,10cyclictest0-21swapper/110:44:231
2722099188,9cyclictest0-21swapper/007:50:420
2722099188,9cyclictest0-21swapper/007:14:260
2722099185,10cyclictest0-21swapper/008:34:320
2722099184,9cyclictest0-21swapper/010:19:280
2722099182,8cyclictest0-21swapper/007:44:310
27220991817,1cyclictest7-21ksoftirqd/007:29:130
27220991814,2cyclictest0-21swapper/008:48:590
27220991810,4cyclictest0-21swapper/008:59:250
27220991810,2cyclictest0-21swapper/009:11:260
2722099180,7cyclictest0-21swapper/009:04:240
1920921810,0sleep10-21swapper/111:37:401
2722199175,8cyclictest0-21swapper/108:59:291
2722199172,9cyclictest0-21swapper/107:59:241
27221991712,3cyclictest100150irq/106-eth1-rx09:44:331
27221991710,5cyclictest0-21swapper/110:52:441
27221991710,2cyclictest0-21swapper/108:19:251
27220991716,1cyclictest0-21swapper/007:32:330
27220991710,6cyclictest0-21swapper/008:24:500
27220991710,2cyclictest0-21swapper/008:54:230
27220991710,2cyclictest0-21swapper/007:09:240
396721610,1sleep10-21swapper/107:30:101
2722199164,7cyclictest0-21swapper/107:44:241
2722199163,6cyclictest0-21swapper/109:04:241
2722099163,6cyclictest0-21swapper/007:19:230
2722099161,7cyclictest0-21swapper/011:04:240
27220991614,1cyclictest83852sleep007:43:140
27220991610,6cyclictest0-21swapper/008:22:460
27221991510,0cyclictest0-21swapper/108:17:031
2722099143,6cyclictest0-21swapper/008:29:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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