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2026-04-04 - 06:28
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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 Sat Apr 04, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
268522740,2sleep02500099cyclictest21:35:370
230932720,3sleep023091-21seq19:04:270
2445927158,8sleep10-21swapper/119:05:271
25001994010,0cyclictest0-21swapper/120:49:421
25000993510,0cyclictest0-21swapper/019:54:300
2500099301,27cyclictest27847-21kworker/0:120:00:430
2500099300,29cyclictest27847-21kworker/0:100:35:450
2500099300,1cyclictest0-21swapper/022:41:090
25000992929,0cyclictest0-21swapper/023:16:240
25000992927,1cyclictest0-21swapper/021:32:310
25001992810,8cyclictest0-21swapper/100:19:261
2500099281,26cyclictest27847-21kworker/0:121:10:130
25001992720,4cyclictest17647-21apache222:36:291
25000992727,0cyclictest0-21swapper/000:06:070
25000992610,15cyclictest0-21swapper/000:01:450
180002260,1sleep018002-21fschecks_time21:24:290
25001992521,2cyclictest17673-21apache221:33:391
25001992518,5cyclictest231ktimersoftd/100:16:181
2500199250,11cyclictest0-21swapper/119:34:251
2500099258,16cyclictest27847-21kworker/0:122:32:170
25000992516,5cyclictest17673-21apache200:20:130
25000992514,8cyclictest16714-21ssh22:52:080
25001992422,1cyclictest3226-21ssh22:33:531
25001992422,1cyclictest0-21swapper/100:30:161
25001992410,9cyclictest0-21swapper/122:09:281
25001992410,6cyclictest0-21swapper/100:34:371
2500199240,11cyclictest11055-21perl21:59:281
25000992422,1cyclictest16949-21vmstat20:09:340
2500099241,18cyclictest27847-21kworker/0:123:09:370
25000992410,2cyclictest32433-21kworker/u4:022:47:020
25001992313,6cyclictest0-21swapper/123:04:321
25001992310,9cyclictest0-21swapper/122:39:581
25001992310,7cyclictest0-21swapper/123:40:441
25001992310,0cyclictest0-21swapper/121:28:091
25000992319,2cyclictest31993-21kworker/u4:123:42:190
25000992317,5cyclictest17673-21apache219:09:260
2500099231,2cyclictest0-21swapper/021:39:440
25000992310,8cyclictest0-21swapper/000:15:340
83812220,1sleep10-21swapper/121:54:351
2500199226,11cyclictest0-21swapper/123:09:251
2500199224,10cyclictest0-21swapper/120:59:311
25001992222,0cyclictest0-21swapper/122:18:271
25001992217,3cyclictest5639-21grep21:04:341
25001992210,5cyclictest0-21swapper/121:10:481
25001992210,4cyclictest0-21swapper/121:16:191
25001992210,10cyclictest0-21swapper/119:14:401
25000992220,1cyclictest0-21swapper/020:14:350
25000992217,5cyclictest17673-21apache223:34:070
25000992210,7cyclictest0-21swapper/021:59:170
25001992120,1cyclictest17647-21apache222:28:421
25001992120,1cyclictest0-21swapper/122:08:041
25001992116,4cyclictest26847-21sshd21:35:371
25001992112,3cyclictest0-21swapper/123:59:321
25001992110,5cyclictest0-21swapper/122:55:581
25001992110,5cyclictest0-21swapper/120:04:331
25001992110,4cyclictest0-21swapper/123:30:391
25001992110,4cyclictest0-21swapper/122:50:441
2500099213,9cyclictest0-21swapper/023:24:150
25000992119,1cyclictest636-21nscd22:09:090
2500099211,2cyclictest6960-21ssh22:39:120
2500099211,18cyclictest8675-21diskmemload21:55:080
25000992110,4cyclictest0-21swapper/022:20:260
25000992110,0cyclictest0-21swapper/023:44:330
2500199205,8cyclictest0-21swapper/120:19:321
2500199202,9cyclictest0-21swapper/123:20:011
25001992011,5cyclictest231ktimersoftd/123:54:341
25001992010,5cyclictest0-21swapper/123:45:591
25001992010,5cyclictest0-21swapper/121:40:031
25001992010,5cyclictest0-21swapper/120:43:301
25001992010,4cyclictest0-21swapper/121:21:511
25001992010,4cyclictest0-21swapper/119:59:301
25001992010,4cyclictest0-21swapper/119:39:351
25001992010,2cyclictest0-21swapper/122:59:261
2500099204,10cyclictest17655-21apache223:24:260
2500099204,10cyclictest0-21swapper/000:09:290
2500099202,17cyclictest20588-21/usr/sbin/munin00:29:330
25000992020,0cyclictest17673-21apache223:05:250
25000992010,4cyclictest100250irq/107-eth1-rx22:09:300
25000992010,2cyclictest0-21swapper/020:28:270
2500099200,19cyclictest27847-21kworker/0:123:54:130
57362190,0sleep10-21swapper/121:51:371
25001991912,4cyclictest0-21swapper/119:44:251
25001991911,5cyclictest0-21swapper/123:34:251
2500199191,11cyclictest0-21swapper/100:07:171
25001991910,6cyclictest0-21swapper/100:28:001
25001991910,5cyclictest0-21swapper/123:54:151
25001991910,3cyclictest0-21swapper/122:44:291
25001991910,2cyclictest0-21swapper/120:09:251
2500199190,4cyclictest26782-21idleruntime-cro19:14:151
2500099197,6cyclictest0-21swapper/022:24:220
2500099194,7cyclictest29539-21switchtime23:54:330
25000991918,1cyclictest0-21swapper/021:53:560
25000991911,3cyclictest0-21swapper/019:26:440
25000991910,7cyclictest0-21swapper/023:00:290
25000991910,5cyclictest0-21swapper/022:54:300
25000991910,4cyclictest0-21swapper/021:14:280
2500199184,7cyclictest19414-21tr20:19:151
2500199184,5cyclictest0-21swapper/121:45:471
25001991810,7cyclictest0-21swapper/123:14:291
25001991810,5cyclictest0-21swapper/119:54:271
25001991810,4cyclictest0-21swapper/120:24:271
25001991810,3cyclictest0-21swapper/119:49:291
25001991810,3cyclictest0-21swapper/119:24:241
25001991810,1cyclictest0-21swapper/100:09:241
25001991810,0cyclictest0-21swapper/119:34:001
2500099187,5cyclictest0-21swapper/021:19:350
2500099186,7cyclictest0-21swapper/020:49:340
2500099186,6cyclictest24517-21ls20:29:340
2500099183,9cyclictest0-21swapper/019:19:280
2500099182,15cyclictest27847-21kworker/0:121:01:370
25000991812,3cyclictest0-21swapper/023:34:310
25000991810,5cyclictest0-21swapper/020:54:250
25000991810,5cyclictest0-21swapper/000:25:560
25000991810,4cyclictest0-21swapper/021:44:320
25000991810,2cyclictest25513-21df20:34:270
2500199171,14cyclictest0-21swapper/120:54:251
2500199171,11cyclictest0-21swapper/120:34:261
25001991710,2cyclictest0-21swapper/122:20:201
25001991710,1cyclictest0-21swapper/123:24:261
2500099177,8cyclictest4167-21apache_accesses19:39:260
2500099177,5cyclictest0-21swapper/022:17:390
25000991710,3cyclictest0-21swapper/020:39:300
25000991710,3cyclictest0-21swapper/019:34:180
25000991710,3cyclictest0-21swapper/019:14:270
2500199164,8cyclictest0-21swapper/119:19:271
2500199161,8cyclictest30291-21sort20:44:341
2500199160,9cyclictest25163-21awk20:34:151
2500099162,8cyclictest7153-21ls19:44:330
25000991610,3cyclictest0-21swapper/019:29:250
25000991610,0cyclictest0-21swapper/020:22:160
2500099160,8cyclictest0-21swapper/020:04:280
25000991510,1cyclictest0-21swapper/021:04:320
25000991510,0cyclictest0-21swapper/019:53:560
2500099140,8cyclictest29148-21apache_accesses20:44:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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