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2026-09-04 - 13:51
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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 376 highest latencies:
System rackcslot2.osadl.org (updated Fri Sep 04, 2026 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1366026956,8sleep10-21swapper/119:07:091
1348826653,8sleep00-21swapper/019:05:210
267532640,0sleep00-21swapper/023:23:510
1392199331,31cyclictest6950-21kworker/0:120:12:160
1392199321,30cyclictest6950-21kworker/0:119:12:200
13922993112,18cyclictest0-21swapper/119:08:141
1392199310,30cyclictest6950-21kworker/0:120:00:080
13922993010,4cyclictest0-21swapper/122:05:141
1392199301,28cyclictest6950-21kworker/0:122:53:280
1392199300,29cyclictest6950-21kworker/0:120:06:120
1392199300,28cyclictest6950-21kworker/0:120:22:280
1392199290,28cyclictest6950-21kworker/0:119:23:380
1392199290,26cyclictest6950-21kworker/0:122:25:140
13922992810,4cyclictest0-21swapper/100:29:531
1392299280,25cyclictest4355-21apache_volume22:53:101
1392199281,26cyclictest6950-21kworker/0:119:17:340
13921992810,11cyclictest0-21swapper/021:31:320
1392199280,26cyclictest0-21swapper/021:53:130
1392199280,23cyclictest0-21swapper/022:02:580
13922992722,1cyclictest0-21swapper/123:23:151
13922992710,0cyclictest0-21swapper/123:34:431
1392199272,23cyclictest6950-21kworker/0:119:29:420
1392199270,18cyclictest0-21swapper/021:51:470
13922992620,2cyclictest0-21swapper/100:24:201
1392299260,25cyclictest7235-21/usr/sbin/munin23:43:141
1392299260,25cyclictest0-21swapper/100:18:171
1392299250,3cyclictest0-21swapper/100:16:191
1392199251,21cyclictest6950-21kworker/0:120:25:460
1392199250,23cyclictest6950-21kworker/0:119:18:240
13922992410,6cyclictest0-21swapper/100:00:111
13922992410,2cyclictest0-21swapper/121:15:431
1392299240,3cyclictest0-21swapper/123:54:001
13921992421,2cyclictest17246-21apache222:14:290
13921992418,3cyclictest81ktimersoftd/022:38:130
13921992410,9cyclictest0-21swapper/000:37:090
13921992410,5cyclictest0-21swapper/022:03:220
13921992410,1cyclictest0-21swapper/023:16:510
1392199240,8cyclictest26438-21runrttasks00:11:340
1392299232,2cyclictest0-21swapper/123:28:511
13922992322,1cyclictest17246-21apache222:48:281
13922992321,2cyclictest17246-21apache221:00:121
1392199236,16cyclictest0-21swapper/023:00:570
1392199233,19cyclictest0-21swapper/022:09:370
13921992311,5cyclictest0-21swapper/022:35:010
13921992310,4cyclictest0-21swapper/023:33:000
1392199230,5cyclictest7407-21grep21:23:210
1392299225,6cyclictest0-21swapper/122:26:351
1392299225,10cyclictest0-21swapper/100:33:131
1392299223,11cyclictest0-21swapper/123:03:151
13922992218,3cyclictest17248-21apache221:52:531
1392299221,5cyclictest0-21swapper/121:56:341
13922992215,4cyclictest13919-21cyclictest00:12:151
13922992211,7cyclictest100250irq/107-eth1-rx23:17:221
13922992210,8cyclictest0-21swapper/121:18:101
13922992210,7cyclictest0-21swapper/121:59:401
13922992210,6cyclictest0-21swapper/120:26:371
13922992210,5cyclictest0-21swapper/121:43:091
13922992210,1cyclictest0-21swapper/122:36:541
1392199224,10cyclictest0-21swapper/019:48:190
13921992210,3cyclictest0-21swapper/021:03:100
13921992210,2cyclictest0-21swapper/000:04:230
13921992210,0cyclictest100150irq/106-eth1-rx23:53:330
1392199220,21cyclictest0-21swapper/021:08:320
1392299213,11cyclictest0-21swapper/119:18:121
13922992118,2cyclictest802-21apache221:33:141
13922992114,2cyclictest0-21swapper/122:28:401
13922992111,6cyclictest100150irq/106-eth1-rx21:28:551
13922992110,5cyclictest0-21swapper/122:18:131
1392299210,10cyclictest0-21swapper/119:28:221
13921992119,1cyclictest1786-21apache_processe00:23:100
13921992111,3cyclictest0-21swapper/022:28:210
13921992110,6cyclictest0-21swapper/023:18:140
13921992110,2cyclictest0-21swapper/023:49:100
1392299204,9cyclictest0-21swapper/121:03:151
1392299203,15cyclictest0-21swapper/100:03:191
1392299203,11cyclictest0-21swapper/123:08:191
1392299202,4cyclictest0-21swapper/122:46:091
13922992011,6cyclictest0-21swapper/119:48:131
13922992011,3cyclictest22213-21fschecks_count20:53:121
13922992010,0cyclictest0-21swapper/123:22:141
13922992010,0cyclictest0-21swapper/121:09:191
1392299200,10cyclictest0-21swapper/122:38:161
1392199206,1cyclictest0-21swapper/000:13:170
1392199203,11cyclictest0-21swapper/020:48:130
13921992016,3cyclictest17248-21apache200:18:500
13921992010,4cyclictest0-21swapper/021:18:150
1392299197,8cyclictest0-21swapper/122:13:151
1392299197,7cyclictest0-21swapper/123:48:151
1392299196,2cyclictest0-21swapper/123:00:091
13922991910,4cyclictest0-21swapper/120:33:171
13922991910,2cyclictest0-21swapper/120:38:261
1392199199,5cyclictest13919-21cyclictest23:43:100
13921991916,2cyclictest636-21nscd21:41:180
13921991913,3cyclictest17248-21apache219:53:120
13921991910,8cyclictest0-21swapper/022:22:590
13921991910,6cyclictest0-21swapper/023:06:210
13921991910,5cyclictest0-21swapper/023:58:100
13921991910,3cyclictest0-21swapper/000:32:530
1392199190,3cyclictest0-21swapper/021:46:520
725121810,0sleep10-21swapper/122:09:251
564621810,0sleep10-21swapper/123:40:501
1392299185,11cyclictest0-21swapper/120:18:131
1392299184,4cyclictest0-21swapper/120:03:121
1392299184,10cyclictest0-21swapper/120:28:111
1392299182,11cyclictest0-21swapper/120:08:161
13922991815,2cyclictest17246-21apache221:25:551
13922991811,4cyclictest802-21apache220:45:531
13922991810,5cyclictest231ktimersoftd/119:23:161
1392199183,9cyclictest0-21swapper/020:58:180
1392199183,8cyclictest31231-21/usr/sbin/munin22:43:200
13921991815,2cyclictest13919-21cyclictest23:30:550
13921991810,3cyclictest0-21swapper/021:13:100
1930221710,0sleep00-21swapper/020:43:200
1392299174,6cyclictest0-21swapper/121:42:171
1392299173,8cyclictest0-21swapper/119:58:151
1392299171,7cyclictest0-21swapper/119:13:111
13922991710,3cyclictest0-21swapper/119:43:181
13922991710,3cyclictest0-21swapper/119:33:171
1392199174,10cyclictest0-21swapper/020:13:100
1392199173,1cyclictest14885-21/usr/sbin/munin20:33:160
1392199172,9cyclictest0-21swapper/020:28:090
1392199172,8cyclictest0-21swapper/023:38:110
13921991710,3cyclictest0-21swapper/022:51:030
13921991710,3cyclictest0-21swapper/021:37:490
13921991710,3cyclictest0-21swapper/019:33:100
13921991710,1cyclictest0-21swapper/023:12:460
13922991610,1cyclictest0-21swapper/119:38:131
1392199161,7cyclictest0-21swapper/019:43:200
13921991610,2cyclictest0-21swapper/020:38:140
13922991510,2cyclictest0-21swapper/120:48:141
1392199154,5cyclictest0-21swapper/020:53:110
13921991510,1cyclictest0-21swapper/019:38:180
13922991410,1cyclictest0-21swapper/119:53:201
13922991310,3cyclictest0-21swapper/120:13:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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