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2026-08-04 - 11:27
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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 Aug 04, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2559426952,7sleep00-21swapper/019:07:040
2549326952,7sleep10-21swapper/119:06:011
195382680,0sleep10-21swapper/100:16:081
161602520,0sleep10-21swapper/100:12:061
25888993510,24cyclictest0-21swapper/023:02:290
25889993210,1cyclictest11471-21kworker/u4:222:28:001
25889993011,8cyclictest100250irq/107-eth1-rx22:38:091
25889992810,1cyclictest0-21swapper/121:47:491
25889992810,0cyclictest0-21swapper/123:42:131
25889992810,0cyclictest0-21swapper/100:07:531
25888992820,7cyclictest28232-21apache223:05:120
25889992726,1cyclictest0-21swapper/100:29:541
25889992611,15cyclictest0-21swapper/122:51:291
25889992610,7cyclictest0-21swapper/121:18:201
2588999260,22cyclictest32054-21ssh21:39:071
2588899264,21cyclictest0-21swapper/000:35:550
1470722610,1sleep00-21swapper/023:25:160
2588899253,17cyclictest0-21swapper/022:19:310
25888992519,3cyclictest1199-21runrttasks22:09:170
25888992510,2cyclictest0-21swapper/022:50:240
2588899242,21cyclictest0-21swapper/023:13:310
2588899241,18cyclictest0-21swapper/022:05:220
2588999238,10cyclictest0-21swapper/120:03:261
2588999236,13cyclictest0-21swapper/119:13:331
25889992321,1cyclictest0-21swapper/123:58:281
2588999230,22cyclictest0-21swapper/119:38:321
2588899234,13cyclictest0-21swapper/020:38:320
25888992310,8cyclictest0-21swapper/023:55:590
25888992310,6cyclictest0-21swapper/022:13:350
25888992310,2cyclictest0-21swapper/021:29:220
25889992222,0cyclictest0-21swapper/122:30:301
25889992221,1cyclictest0-21swapper/123:12:171
25889992219,2cyclictest7365-21fschecks_time19:43:431
25889992215,4cyclictest0-21swapper/121:37:081
25889992211,10cyclictest593-21lldpd00:20:321
25889992210,11cyclictest0-21swapper/123:56:441
2588899223,15cyclictest0-21swapper/020:13:320
25888992222,0cyclictest0-21swapper/023:10:390
2588899222,18cyclictest0-21swapper/023:58:220
25888992219,2cyclictest28533-21ssh21:34:550
25888992217,2cyclictest81ktimersoftd/023:39:490
25888992216,5cyclictest636-21nscd21:27:460
25888992210,7cyclictest0-21swapper/021:10:500
25888992210,6cyclictest0-21swapper/022:41:190
25888992210,6cyclictest0-21swapper/020:19:110
25889992121,0cyclictest0-21swapper/122:00:511
2588999211,11cyclictest0-21swapper/120:23:281
25889992110,6cyclictest0-21swapper/119:23:291
25889992110,5cyclictest0-21swapper/119:28:251
25889992110,3cyclictest0-21swapper/123:23:171
2588999210,20cyclictest0-21swapper/123:00:591
25888992121,0cyclictest100250irq/107-eth1-rx00:23:260
25888992120,1cyclictest0-21swapper/021:16:380
25888992110,5cyclictest0-21swapper/000:28:370
25888992110,4cyclictest0-21swapper/000:13:280
25888992110,3cyclictest0-21swapper/021:53:340
2588899210,2cyclictest23353-21kworker/u4:123:45:270
2588999206,9cyclictest0-21swapper/119:18:321
25889992020,0cyclictest231ktimersoftd/122:21:151
25889992012,5cyclictest28256-21apache223:48:191
25889992010,8cyclictest0-21swapper/122:09:301
25889992010,6cyclictest0-21swapper/121:23:271
25889992010,4cyclictest0-21swapper/121:14:361
25889992010,2cyclictest0-21swapper/122:55:461
2588999200,19cyclictest0-21swapper/120:56:131
2588999200,11cyclictest0-21swapper/122:03:291
2588899209,8cyclictest24963-21ls20:28:300
2588899202,10cyclictest0-21swapper/020:48:280
25888992019,1cyclictest0-21swapper/022:02:060
25888992013,3cyclictest2012-21kworker/u4:021:18:170
25888992012,3cyclictest0-21swapper/000:08:340
25888992011,8cyclictest0-21swapper/023:51:300
25888992010,5cyclictest0-21swapper/019:48:260
25888992010,4cyclictest0-21swapper/022:24:410
25888992010,3cyclictest0-21swapper/019:13:150
25888992010,2cyclictest0-21swapper/019:58:350
2588899200,18cyclictest0-21swapper/022:54:380
2588999197,12cyclictest0-21swapper/121:07:531
2588999194,8cyclictest0-21swapper/121:28:321
2588999194,6cyclictest7151-21diskmemload23:37:271
2588999193,9cyclictest0-21swapper/119:58:341
2588999192,10cyclictest9386-21apache_processe21:53:261
25889991917,1cyclictest15658-21kworker/u4:022:43:361
25889991917,1cyclictest0-21swapper/121:12:231
25889991912,4cyclictest100250irq/107-eth1-rx23:30:581
25889991912,2cyclictest0-21swapper/119:53:281
2588999191,17cyclictest0-21swapper/123:14:111
25889991910,8cyclictest0-21swapper/122:38:451
25889991910,4cyclictest0-21swapper/123:43:321
25889991910,4cyclictest0-21swapper/120:28:271
25889991910,3cyclictest0-21swapper/123:21:501
2588899199,4cyclictest0-21swapper/022:30:100
2588899195,6cyclictest636-21nscd23:20:480
2588899195,10cyclictest0-21swapper/019:28:260
2588899192,10cyclictest0-21swapper/019:18:280
25888991918,0cyclictest0-21swapper/019:43:460
25888991915,2cyclictest0-21swapper/021:52:080
25888991910,5cyclictest0-21swapper/022:46:000
25888991910,4cyclictest0-21swapper/022:37:050
25888991910,4cyclictest0-21swapper/021:43:090
25888991910,3cyclictest0-21swapper/000:03:310
2588899190,11cyclictest167-21systemd-journal21:03:310
2588999185,4cyclictest27959-21perf20:38:141
2588999184,4cyclictest28215-21apache223:03:261
2588999183,8cyclictest0-21swapper/120:18:361
25889991814,3cyclictest0-21swapper/121:48:351
25889991810,5cyclictest0-21swapper/100:34:031
25889991810,4cyclictest0-21swapper/100:23:301
25889991810,3cyclictest0-21swapper/120:08:161
2588899187,3cyclictest0-21swapper/020:03:280
2588899183,9cyclictest0-21swapper/019:33:280
2588899183,5cyclictest0-21swapper/020:08:340
2588899183,14cyclictest0-21swapper/020:25:120
2588899182,8cyclictest0-21swapper/019:23:250
2588899181,6cyclictest5451-21cut19:38:300
25888991810,3cyclictest0-21swapper/021:44:140
25888991810,3cyclictest0-21swapper/000:18:190
2588999172,8cyclictest0-21swapper/119:48:261
25889991714,2cyclictest0-21swapper/120:38:321
25889991712,3cyclictest0-21swapper/120:43:281
25889991710,4cyclictest0-21swapper/119:35:011
25889991710,4cyclictest0-21swapper/119:08:351
25889991710,2cyclictest0-21swapper/120:58:251
25889991710,1cyclictest0-21swapper/122:13:321
25889991710,0cyclictest0-21swapper/120:14:381
2588899174,12cyclictest0-21swapper/019:53:310
2588899171,3cyclictest0-21swapper/020:33:250
25888991710,6cyclictest0-21swapper/023:30:040
25888991710,4cyclictest100150irq/106-eth1-rx20:55:190
25888991710,1cyclictest0-21swapper/020:43:290
116221710,0sleep10-21swapper/120:51:091
2588899163,7cyclictest0-21swapper/023:33:350
25888991611,4cyclictest28010-21munin-node19:17:070
25888991610,3cyclictest0-21swapper/020:58:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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