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2026-07-07 - 15:15
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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 all highest latencies:
System rackcslot2.osadl.org (updated Tue Jul 07, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
815626957,8sleep10-21swapper/107:07:421
814626654,8sleep00-21swapper/007:07:350
15012660,0sleep00-21swapper/009:21:080
279442640,2sleep1841399cyclictest07:58:291
272872410,0sleep027288-21diskmemload10:32:320
8413993126,3cyclictest636-21nscd08:03:471
8412992922,4cyclictest81ktimersoftd/010:07:500
8413992727,0cyclictest0-21swapper/110:55:481
8413992725,1cyclictest0-21swapper/110:20:581
8412992710,12cyclictest0-21swapper/009:33:430
841299260,9cyclictest0-21swapper/008:13:430
823322622,2sleep00-21swapper/007:08:290
841299257,15cyclictest0-21swapper/008:19:330
8412992525,0cyclictest0-21swapper/012:36:260
841299250,0cyclictest0-21swapper/011:38:360
841399246,9cyclictest0-21swapper/111:09:251
8413992421,2cyclictest18286-21apache211:06:081
8413992410,9cyclictest0-21swapper/112:34:081
8413992410,6cyclictest0-21swapper/112:30:581
8413992410,13cyclictest0-21swapper/112:01:231
8412992420,3cyclictest1199-21runrttasks11:57:310
8413992320,1cyclictest231ktimersoftd/110:09:271
8413992316,3cyclictest18286-21apache209:27:421
8413992312,7cyclictest0-21swapper/109:50:081
8413992311,1cyclictest0-21swapper/107:08:451
8413992310,5cyclictest0-21swapper/111:43:401
841299237,9cyclictest0-21swapper/008:08:400
841299236,16cyclictest0-21swapper/008:34:450
8412992319,3cyclictest22347-21ssh11:44:350
8412992310,6cyclictest0-21swapper/009:09:030
8412992310,3cyclictest0-21swapper/009:58:410
841399222,7cyclictest0-21swapper/109:59:491
8413992218,3cyclictest18308-21apache209:56:091
8413992217,4cyclictest8410-21cyclictest10:28:131
8413992217,3cyclictest18286-21apache212:09:381
8413992210,8cyclictest0-21swapper/108:38:411
8413992210,7cyclictest0-21swapper/112:20:191
8413992210,7cyclictest0-21swapper/111:23:461
8413992210,4cyclictest0-21swapper/109:19:251
8413992210,10cyclictest0-21swapper/110:08:121
8412992219,3cyclictest0-21swapper/007:45:290
8412992217,4cyclictest18286-21apache210:42:380
8412992217,4cyclictest0-21swapper/012:01:050
8412992215,6cyclictest1199-21runrttasks07:58:290
8412992210,8cyclictest0-21swapper/010:37:000
8412992210,7cyclictest0-21swapper/011:22:310
8412992210,4cyclictest0-21swapper/011:53:290
8412992210,2cyclictest0-21swapper/011:13:120
841299220,18cyclictest0-21swapper/011:33:310
1758222210,0sleep10-21swapper/109:40:371
841399218,9cyclictest0-21swapper/107:13:411
841399216,13cyclictest29621-21munin-node10:58:531
841399215,7cyclictest12454-21/usr/sbin/munin10:13:461
841399212,10cyclictest0-21swapper/109:43:381
8413992118,2cyclictest18308-21apache211:56:451
8413992117,3cyclictest12779-21apache207:23:401
8413992116,3cyclictest22339-21diskmemload11:13:481
8413992110,4cyclictest0-21swapper/108:43:451
8413992110,11cyclictest0-21swapper/111:39:371
8412992119,2cyclictest18286-21apache209:23:510
8412992114,4cyclictest18308-21apache211:06:290
8412992111,1cyclictest45-21kswapd012:33:280
8412992110,7cyclictest0-21swapper/009:53:480
8412992110,6cyclictest0-21swapper/007:33:290
8412992110,5cyclictest0-21swapper/010:43:400
8412992110,11cyclictest0-21swapper/009:46:320
841299210,21cyclictest0-21swapper/011:26:410
1645922110,0sleep10-21swapper/108:52:561
1374422110,0sleep10-21swapper/111:33:521
841399204,13cyclictest0-21swapper/108:13:461
841399202,3cyclictest0-21swapper/110:36:491
8413992018,1cyclictest0-21swapper/112:17:561
8413992012,5cyclictest0-21swapper/112:27:441
8413992010,9cyclictest0-21swapper/110:43:501
8413992010,6cyclictest0-21swapper/107:33:421
841299204,8cyclictest0-21swapper/007:23:420
8412992019,0cyclictest20973-21wc07:38:450
8412992019,0cyclictest15444-21ssh10:57:240
8412992018,0cyclictest81ktimersoftd/009:51:250
8412992012,1cyclictest14822-21cpuspeed_turbos08:48:410
8412992010,9cyclictest0-21swapper/010:24:290
8412992010,5cyclictest0-21swapper/011:02:480
8412992010,5cyclictest0-21swapper/007:58:400
841299200,20cyclictest0-21swapper/010:11:300
841299200,13cyclictest8554-21apache_accesses12:08:390
3100722010,0sleep00-21swapper/011:15:500
841399198,7cyclictest0-21swapper/108:55:161
841399195,11cyclictest0-21swapper/110:48:431
841399195,10cyclictest0-21swapper/112:03:501
841399192,10cyclictest0-21swapper/108:33:421
841399191,9cyclictest0-21swapper/108:08:411
8413991918,1cyclictest0-21swapper/109:10:271
8413991910,4cyclictest0-21swapper/111:22:381
8413991910,3cyclictest0-21swapper/111:48:491
8413991910,3cyclictest0-21swapper/107:28:431
8413991910,0cyclictest0-21swapper/110:29:581
8412991913,2cyclictest12099-21timerwakeupswit08:38:510
8412991910,5cyclictest0-21swapper/012:04:400
8412991910,4cyclictest0-21swapper/009:38:460
8412991910,4cyclictest0-21swapper/008:03:460
8412991910,3cyclictest0-21swapper/009:13:400
8412991910,2cyclictest0-21swapper/011:28:400
3004221910,0sleep10-21swapper/109:16:401
2406021910,0sleep00-21swapper/012:27:210
1408521910,0sleep00-21swapper/012:13:550
1127621910,0sleep10-21swapper/109:33:361
841399186,6cyclictest0-21swapper/107:48:451
8413991818,0cyclictest0-21swapper/109:05:491
8413991815,1cyclictest2577-21rm10:41:151
8413991814,2cyclictest22339-21diskmemload09:30:471
8413991813,4cyclictest18308-21apache208:22:561
841399180,17cyclictest0-21swapper/108:28:421
8412991810,1cyclictest0-21swapper/010:13:450
841399175,4cyclictest0-21swapper/111:28:451
841399174,6cyclictest0-21swapper/108:58:441
841399172,6cyclictest13152-21/usr/sbin/munin07:18:461
841299178,7cyclictest81ktimersoftd/007:18:410
841299174,6cyclictest8115-21python08:28:500
841299173,7cyclictest17084-21/usr/sbin/munin08:53:430
841299173,5cyclictest0-21swapper/009:03:400
8412991711,2cyclictest0-21swapper/007:13:430
8412991710,4cyclictest0-21swapper/010:23:290
8412991710,4cyclictest0-21swapper/009:28:460
8412991710,3cyclictest0-21swapper/012:19:280
8412991710,3cyclictest0-21swapper/007:48:400
8412991710,3cyclictest0-21swapper/007:28:510
841399164,7cyclictest0-21swapper/107:58:451
841399160,8cyclictest0-21swapper/107:38:471
841299166,7cyclictest0-21swapper/008:58:450
8412991613,2cyclictest81ktimersoftd/010:49:110
841399151,8cyclictest0-21swapper/108:23:471
8412991410,2cyclictest0-21swapper/008:26:500
841399133,6cyclictest0-21swapper/107:43:411
8412991311,1cyclictest12861-21apache_processe08:43:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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