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2026-07-21 - 03:25
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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 Tue Jul 21, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
157202770,1sleep10-21swapper/100:32:221
128382700,1sleep00-21swapper/000:28:350
94826947,17sleep10-21swapper/119:04:451
110226956,8sleep00-21swapper/019:06:110
183742660,0sleep10-21swapper/119:50:241
190792640,0sleep10-21swapper/119:53:351
163572590,1sleep0149299cyclictest21:48:410
1493993028,1cyclictest22036-21users19:58:421
1493993010,17cyclictest0-21swapper/121:45:141
149399282,23cyclictest0-21swapper/121:56:281
149299288,19cyclictest27966-21kworker/0:223:16:040
1492992810,18cyclictest0-21swapper/023:09:450
149299280,3cyclictest0-21swapper/022:49:410
1492992727,0cyclictest0-21swapper/020:54:250
1492992711,11cyclictest100250irq/107-eth1-rx22:24:330
149399263,23cyclictest0-21swapper/100:03:131
1493992626,0cyclictest0-21swapper/122:50:001
149399260,22cyclictest0-21swapper/121:10:571
149299267,18cyclictest27966-21kworker/0:200:04:140
1492992610,3cyclictest0-21swapper/021:08:380
149299260,24cyclictest0-21swapper/022:44:090
1493992520,4cyclictest3107-21apache223:21:341
1493992510,1cyclictest0-21swapper/123:34:361
1492992525,0cyclictest0-21swapper/023:07:360
1492992520,5cyclictest3107-21apache222:07:170
1492992517,6cyclictest3124-21apache223:25:020
1492992510,7cyclictest0-21swapper/022:32:280
149399241,22cyclictest32564-21switchtime22:08:431
149299243,10cyclictest14485-21ssh23:48:410
1492992423,1cyclictest3107-21apache200:17:220
1492992417,6cyclictest319-21rpcbind20:40:240
149299241,15cyclictest20212-21ls21:13:380
1493992319,4cyclictest3107-21apache200:33:531
1493992317,5cyclictest31595-21/usr/sbin/munin21:28:441
1493992317,4cyclictest0-21swapper/121:02:071
1493992312,6cyclictest7746-21pidof23:39:581
1493992310,12cyclictest0-21swapper/123:07:441
149399230,21cyclictest13042-21kworker/1:120:35:171
1492992319,2cyclictest1199-21runrttasks21:06:060
149299231,21cyclictest27966-21kworker/0:223:57:440
1492992310,7cyclictest0-21swapper/000:33:360
149399223,11cyclictest0-21swapper/122:33:331
1493992221,1cyclictest0-21swapper/123:56:121
1493992210,3cyclictest0-21swapper/121:17:311
149299225,7cyclictest0-21swapper/021:53:350
1492992210,6cyclictest0-21swapper/023:41:330
1492992210,5cyclictest0-21swapper/021:44:390
149299220,0cyclictest0-21swapper/022:33:310
149399213,8cyclictest0-21swapper/119:23:391
149399212,18cyclictest0-21swapper/121:36:181
1493992120,0cyclictest3124-21apache200:18:591
1493992120,0cyclictest0-21swapper/123:15:221
1493992114,5cyclictest100150irq/106-eth1-rx22:45:001
1493992110,8cyclictest0-21swapper/100:14:091
1493992110,5cyclictest0-21swapper/119:39:411
149399210,9cyclictest0-21swapper/119:43:341
149399210,10cyclictest3233-21df22:13:341
149299215,16cyclictest27966-21kworker/0:222:18:440
1492992120,1cyclictest3124-21apache223:46:300
1492992120,1cyclictest3107-21apache200:02:440
149299211,19cyclictest27966-21kworker/0:219:08:220
149299211,13cyclictest0-21swapper/020:03:370
1492992110,3cyclictest0-21swapper/020:48:340
149399206,10cyclictest0-21swapper/123:48:411
149399203,10cyclictest13377-21idleruntime-cro23:48:221
1493992019,1cyclictest0-21swapper/121:25:201
1493992017,2cyclictest3107-21apache219:33:431
1493992015,3cyclictest3107-21apache222:28:491
1493992013,4cyclictest100150irq/106-eth1-rx23:10:111
1493992013,0cyclictest0-21swapper/123:02:081
1493992010,5cyclictest0-21swapper/119:13:351
149399200,8cyclictest0-21swapper/122:03:391
149399200,10cyclictest0-21swapper/122:23:341
149299207,13cyclictest27966-21kworker/0:223:19:220
1492992020,0cyclictest0-21swapper/000:09:260
1492992016,3cyclictest32360-21grep22:08:410
1492992016,2cyclictest81ktimersoftd/022:53:310
1492992014,6cyclictest27966-21kworker/0:219:36:280
1492992010,9cyclictest27966-21kworker/0:220:28:020
1492992010,4cyclictest0-21swapper/021:18:400
149399193,13cyclictest13042-21kworker/1:120:56:571
1493991919,0cyclictest0-21swapper/120:45:221
1493991916,2cyclictest100150irq/106-eth1-rx23:25:231
1493991914,2cyclictest3124-21apache222:39:301
1493991910,7cyclictest0-21swapper/121:48:341
1493991910,5cyclictest0-21swapper/122:18:281
149299195,8cyclictest0-21swapper/019:48:410
149299193,8cyclictest0-21swapper/019:13:340
149299192,8cyclictest15374-21wget19:43:360
149299191,9cyclictest0-21swapper/000:23:350
1492991915,2cyclictest1490-21cyclictest20:08:360
149299191,2cyclictest0-21swapper/023:30:520
1492991912,5cyclictest1611-1kworker/u5:121:34:100
1492991910,7cyclictest0-21swapper/021:29:370
1492991910,7cyclictest0-21swapper/019:18:470
1492991910,3cyclictest0-21swapper/023:33:280
933221810,0sleep10-21swapper/120:53:141
149399184,9cyclictest26501-21apache_volume20:13:351
149399184,11cyclictest0-21swapper/121:03:341
1493991810,7cyclictest0-21swapper/100:25:561
1493991810,1cyclictest0-21swapper/121:18:321
1493991810,0cyclictest0-21swapper/100:11:021
1492991817,1cyclictest27966-21kworker/0:219:41:520
1492991810,6cyclictest0-21swapper/022:58:350
1492991810,5cyclictest0-21swapper/020:58:320
1492991810,5cyclictest0-21swapper/019:58:240
1492991810,4cyclictest0-21swapper/022:00:560
1492991810,4cyclictest0-21swapper/020:33:400
1492991810,2cyclictest0-21swapper/021:23:520
149399174,8cyclictest0-21swapper/120:18:371
149399173,9cyclictest0-21swapper/121:42:401
149399173,8cyclictest0-21swapper/120:12:261
149399172,7cyclictest0-21swapper/120:28:321
1493991711,4cyclictest100250irq/107-eth1-rx22:57:161
1493991710,4cyclictest0-21swapper/123:29:101
1493991710,3cyclictest0-21swapper/119:18:331
149399170,6cyclictest0-21swapper/120:23:391
149299177,6cyclictest3124-21apache219:53:380
149299176,6cyclictest0-21swapper/000:18:470
149299174,3cyclictest23000-21ssh22:38:340
1492991710,2cyclictest0-21swapper/021:41:340
1492991710,1cyclictest0-21swapper/020:28:370
1492991710,0cyclictest0-21swapper/019:32:240
890321610,0sleep00-21swapper/019:26:350
646621610,0sleep00-21swapper/020:43:400
149399163,7cyclictest0-21swapper/121:58:351
1493991610,5cyclictest0-21swapper/119:28:401
149399160,11cyclictest0-21swapper/120:03:341
149299164,7cyclictest0-21swapper/022:13:330
1493991510,4cyclictest100250irq/107-eth1-rx00:07:231
1492991512,1cyclictest28640-21df20:18:340
149399142,7cyclictest3988-21/usr/sbin/munin20:38:341
1492991412,1cyclictest27429-21rt-features20:13:420
149399132,6cyclictest1513-21/usr/sbin/munin19:08:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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