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2026-03-27 - 14:03
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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 100 highest latencies:
System rackcslot2.osadl.org (updated Fri Mar 27, 2026 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2745127362,7sleep00-21swapper/019:07:430
2752526956,8sleep10-21swapper/119:08:301
27786994310,32cyclictest0-21swapper/123:15:181
27786994310,32cyclictest0-21swapper/120:39:181
27786994210,31cyclictest0-21swapper/121:24:461
27786994110,30cyclictest2720-21ssh21:45:031
27786994110,30cyclictest0-21swapper/123:19:241
27786994110,30cyclictest0-21swapper/121:52:101
27786994110,27cyclictest0-21swapper/119:54:351
27786994010,30cyclictest0-21swapper/123:47:411
27786994010,30cyclictest0-21swapper/122:50:031
27786994010,29cyclictest0-21swapper/122:17:461
27786994010,29cyclictest0-21swapper/121:33:381
27786994010,29cyclictest0-21swapper/100:17:201
27786994010,28cyclictest0-21swapper/123:08:101
27786993910,29cyclictest0-21swapper/121:36:511
27786993910,29cyclictest0-21swapper/100:34:131
27786993910,28cyclictest0-21swapper/123:41:231
27786993910,28cyclictest0-21swapper/100:37:141
27786993910,28cyclictest0-21swapper/100:26:501
27786993910,24cyclictest0-21swapper/123:56:341
27786993811,27cyclictest0-21swapper/120:10:301
27786993810,27cyclictest0-21swapper/122:45:371
27786993810,27cyclictest0-21swapper/121:43:441
27786993810,27cyclictest0-21swapper/121:11:311
27786993810,27cyclictest0-21swapper/120:39:561
27786993810,23cyclictest0-21swapper/122:59:251
27786993737,0cyclictest0-21swapper/119:19:561
27786993710,24cyclictest0-21swapper/123:32:481
27786993611,20cyclictest0-21swapper/119:52:431
27786993610,26cyclictest0-21swapper/122:19:401
27786993610,25cyclictest0-21swapper/123:51:251
27786993610,25cyclictest0-21swapper/123:12:091
27786993610,25cyclictest0-21swapper/122:13:131
27786993610,25cyclictest0-21swapper/100:13:151
27786993610,24cyclictest0-21swapper/122:24:461
27786993610,24cyclictest0-21swapper/121:58:021
27786993510,24cyclictest0-21swapper/121:15:111
27786993510,24cyclictest0-21swapper/120:53:471
27786993510,24cyclictest0-21swapper/120:46:101
27786993510,24cyclictest0-21swapper/119:34:101
27786993510,22cyclictest0-21swapper/100:03:401
27786993510,21cyclictest0-21swapper/123:27:491
27786993410,24cyclictest0-21swapper/122:54:501
27786993410,23cyclictest0-21swapper/122:40:431
27786993410,23cyclictest0-21swapper/122:40:431
27786993410,23cyclictest0-21swapper/121:21:401
27786993410,23cyclictest0-21swapper/120:24:361
27786993410,23cyclictest0-21swapper/119:27:461
27786993410,23cyclictest0-21swapper/100:24:001
27786993410,23cyclictest0-21swapper/100:04:391
27786993315,18cyclictest0-21swapper/122:04:581
27786993310,22cyclictest0-21swapper/122:00:301
27786993210,19cyclictest0-21swapper/122:33:131
27786993110,21cyclictest0-21swapper/119:14:481
27786993110,20cyclictest0-21swapper/123:34:291
27786993110,20cyclictest0-21swapper/120:08:531
27786993110,20cyclictest0-21swapper/119:44:311
27785993111,8cyclictest0-21swapper/000:35:010
27786993011,17cyclictest0-21swapper/120:33:311
27786993010,19cyclictest0-21swapper/121:04:291
27786993010,18cyclictest0-21swapper/121:02:061
27785992918,7cyclictest28051-21apache223:03:580
27786992810,18cyclictest0-21swapper/120:19:521
27786992810,17cyclictest0-21swapper/122:34:321
27786992810,15cyclictest0-21swapper/119:34:331
27785992826,1cyclictest0-21swapper/000:23:570
27785992821,7cyclictest0-21swapper/022:51:170
27786992610,12cyclictest0-21swapper/120:54:481
27785992525,0cyclictest0-21swapper/021:48:430
27785992510,2cyclictest0-21swapper/021:19:340
27785992421,2cyclictest5480-21if_err_eth019:34:330
27785992414,5cyclictest7-21ksoftirqd/019:09:190
27785992410,8cyclictest0-21swapper/022:04:330
27785992410,13cyclictest0-21swapper/000:31:280
27786992310,13cyclictest0-21swapper/120:17:261
27785992319,4cyclictest28051-21apache220:09:570
27785992318,4cyclictest28051-21apache200:15:520
27785992310,6cyclictest0-21swapper/000:03:530
27785992310,5cyclictest0-21swapper/023:30:490
27786992210,12cyclictest0-21swapper/120:01:201
27786992210,12cyclictest0-21swapper/119:39:281
2778599226,11cyclictest0-21swapper/000:09:290
2778599222,9cyclictest744-21snmpd21:09:190
27785992219,1cyclictest407-21sshd22:36:480
27785992217,4cyclictest744-21snmpd21:10:030
27785992212,5cyclictest28907-21timerwakeupswit21:34:390
27785992210,12cyclictest0-21swapper/000:04:510
27786992110,7cyclictest0-21swapper/119:09:321
2778599219,6cyclictest7775-21ntp_states19:39:350
2778599213,8cyclictest0-21swapper/020:14:360
2778599212,18cyclictest0-21swapper/021:44:170
27785992120,0cyclictest4685-21kworker/0:219:24:370
2778599211,9cyclictest0-21swapper/023:20:050
27785992119,1cyclictest5263-21sh21:50:260
27785992114,5cyclictest636-21nscd23:55:210
27785992113,3cyclictest0-21swapper/023:34:290
27785992112,3cyclictest12187-21sh00:26:420
27785992110,8cyclictest100150irq/106-eth1-rx22:39:550
27785992110,8cyclictest100150irq/106-eth1-rx22:39:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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