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2026-05-09 - 02:25
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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 100 highest latencies:
System rackdslot3.osadl.org (updated Fri May 08, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
912722930,7sleep30-21swapper/307:05:113
109362205172,22sleep00-21swapper/007:06:080
109122205172,22sleep10-21swapper/107:05:501
111822201168,22sleep20-21swapper/207:09:202
835721480,3sleep21153599cyclictest08:10:142
469121200,6sleep21153599cyclictest09:10:142
323312570,2sleep00-21swapper/009:00:140
216042550,3sleep20-21swapper/209:45:162
178862530,2sleep20-21swapper/207:20:232
139391530,1ptp4l401ktimersoftd/309:11:423
139391530,1ptp4l401ktimersoftd/307:25:433
129472530,2sleep00-21swapper/009:25:250
26972520,2sleep32696-21head07:55:263
139391420,0ptp4l401ktimersoftd/310:50:183
139391410,0ptp4l401ktimersoftd/310:10:023
139391410,0ptp4l401ktimersoftd/308:36:453
11536994135,3cyclictest19801-21dump-pmu-power08:35:013
139391400,0ptp4l401ktimersoftd/310:49:523
11535993833,3cyclictest207-21systemd-journal10:35:312
11534993830,5cyclictest25-21ksoftirqd/110:45:111
11536993732,3cyclictest23091-21cron09:50:003
11533993729,5cyclictest9-21ksoftirqd/008:40:110
11536993631,3cyclictest41-21ksoftirqd/308:50:093
11536993630,4cyclictest41-21ksoftirqd/311:15:103
11534993630,4cyclictest25-21ksoftirqd/111:42:051
11534993629,4cyclictest25-21ksoftirqd/112:01:141
139391350,13ptp4l401ktimersoftd/307:45:263
11536993529,4cyclictest41-21ksoftirqd/312:10:403
11536993529,4cyclictest41-21ksoftirqd/311:28:473
11536993529,4cyclictest41-21ksoftirqd/307:30:583
11536993528,4cyclictest41-21ksoftirqd/309:23:553
11535993528,5cyclictest33-21ksoftirqd/210:28:172
11534993530,3cyclictest25-21ksoftirqd/110:31:081
11534993530,3cyclictest25-21ksoftirqd/107:56:131
11534993529,4cyclictest25-21ksoftirqd/109:32:251
11534993529,4cyclictest25-21ksoftirqd/108:37:011
11534993529,4cyclictest25-21ksoftirqd/108:22:511
11533993530,3cyclictest9-21ksoftirqd/011:45:470
11533993530,3cyclictest9-21ksoftirqd/010:50:140
11533993529,4cyclictest9-21ksoftirqd/010:14:070
11533993528,5cyclictest9-21ksoftirqd/007:26:550
11536993429,3cyclictest41-21ksoftirqd/310:35:003
11536993429,3cyclictest41-21ksoftirqd/308:00:113
11536993428,4cyclictest41-21ksoftirqd/309:01:293
11536993428,4cyclictest41-21ksoftirqd/308:49:093
11536993428,4cyclictest41-21ksoftirqd/307:50:093
11535993428,4cyclictest33-21ksoftirqd/212:34:292
11535993428,4cyclictest33-21ksoftirqd/211:03:192
11535993428,4cyclictest33-21ksoftirqd/209:21:092
11535993428,4cyclictest33-21ksoftirqd/209:03:292
11535993428,4cyclictest33-21ksoftirqd/208:02:432
11535993428,4cyclictest33-21ksoftirqd/207:42:292
11534993429,3cyclictest25-21ksoftirqd/110:59:551
11534993429,3cyclictest25-21ksoftirqd/107:14:481
11534993428,4cyclictest25-21ksoftirqd/112:38:181
11534993428,4cyclictest25-21ksoftirqd/112:16:271
11534993428,4cyclictest25-21ksoftirqd/110:40:311
11534993428,4cyclictest25-21ksoftirqd/110:01:561
11534993428,4cyclictest25-21ksoftirqd/109:39:151
11534993428,4cyclictest25-21ksoftirqd/108:54:041
11534993428,4cyclictest25-21ksoftirqd/108:27:461
11534993428,4cyclictest25-21ksoftirqd/108:27:451
11534993428,4cyclictest25-21ksoftirqd/108:12:321
11533993428,4cyclictest9-21ksoftirqd/011:32:500
11533993428,4cyclictest9-21ksoftirqd/010:33:200
11533993428,4cyclictest9-21ksoftirqd/007:41:500
11536993328,3cyclictest41-21ksoftirqd/312:01:333
11536993328,3cyclictest41-21ksoftirqd/308:14:583
11536993327,4cyclictest41-21ksoftirqd/310:41:263
11536993327,4cyclictest41-21ksoftirqd/310:38:053
11536993327,4cyclictest41-21ksoftirqd/310:20:043
11536993327,4cyclictest41-21ksoftirqd/309:34:513
11536993327,4cyclictest41-21ksoftirqd/309:28:363
11536993327,4cyclictest41-21ksoftirqd/308:42:193
11536993327,4cyclictest41-21ksoftirqd/308:29:523
11536993327,4cyclictest41-21ksoftirqd/308:29:523
11535993327,4cyclictest33-21ksoftirqd/212:22:212
11535993327,4cyclictest33-21ksoftirqd/212:19:252
11535993327,4cyclictest33-21ksoftirqd/212:04:252
11535993327,4cyclictest33-21ksoftirqd/211:07:562
11535993327,4cyclictest33-21ksoftirqd/210:19:182
11535993327,4cyclictest33-21ksoftirqd/209:57:482
11535993327,4cyclictest33-21ksoftirqd/209:38:142
11535993327,4cyclictest33-21ksoftirqd/208:05:522
11534993328,3cyclictest25-21ksoftirqd/111:16:061
11534993328,3cyclictest25-21ksoftirqd/110:29:161
11534993328,3cyclictest25-21ksoftirqd/108:01:251
11534993327,4cyclictest25-21ksoftirqd/110:14:321
11534993327,4cyclictest25-21ksoftirqd/109:29:351
11534993327,4cyclictest25-21ksoftirqd/107:44:081
11534993327,4cyclictest25-21ksoftirqd/107:35:461
11534993327,4cyclictest25-21ksoftirqd/107:18:091
11534993321,10cyclictest25-21ksoftirqd/111:24:461
11533993327,4cyclictest9-21ksoftirqd/012:20:030
11533993327,4cyclictest9-21ksoftirqd/011:03:010
11533993327,4cyclictest9-21ksoftirqd/010:47:000
11533993327,4cyclictest9-21ksoftirqd/010:44:400
11533993327,4cyclictest9-21ksoftirqd/010:08:420
11533993327,4cyclictest9-21ksoftirqd/007:45:280
11533993327,3cyclictest9-21ksoftirqd/008:25:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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