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2026-06-11 - 10:42
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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 Thu Jun 11, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491232168,52phc2sys0-21swapper/319:08:363
81842204171,22sleep00-21swapper/019:06:220
83682203170,22sleep10-21swapper/119:08:451
83642203169,23sleep20-21swapper/219:08:412
1133821300,3sleep3875999cyclictest22:35:183
139391570,1ptp4l401ktimersoftd/323:57:173
237032550,2sleep00-21swapper/020:45:230
139391540,1ptp4l401ktimersoftd/321:41:463
8758995144,4cyclictest31744-21latency_hist21:05:002
875999460,5cyclictest9464-21cut19:10:173
8756994610,21cyclictest4026-21seq21:13:500
8759994539,3cyclictest11257-21cron21:30:003
8756994511,20cyclictest15483-21seq19:22:030
57898450,10rtkit-daemon0-21swapper/122:28:581
8756994429,13cyclictest9-21ksoftirqd/022:50:110
8756994429,13cyclictest9-21ksoftirqd/022:50:110
139391440,0ptp4l401ktimersoftd/320:27:023
139391440,0ptp4l401ktimersoftd/320:12:363
139391440,0ptp4l401ktimersoftd/319:16:453
875699438,20cyclictest23888-21seq00:09:340
8758994227,4cyclictest33-21ksoftirqd/219:10:172
8756994210,23cyclictest1317-21runrttasks20:56:330
139391410,0ptp4l401ktimersoftd/323:25:203
139391400,0ptp4l401ktimersoftd/323:46:063
8759993932,4cyclictest41-21ksoftirqd/323:00:123
139391390,15ptp4l401ktimersoftd/320:00:203
8759993832,4cyclictest41-21ksoftirqd/320:54:453
8759993832,4cyclictest41-21ksoftirqd/320:54:443
8759993831,4cyclictest41-21ksoftirqd/320:35:013
8757993731,4cyclictest25-21ksoftirqd/121:44:481
139391370,0ptp4l401ktimersoftd/323:20:123
139391370,0ptp4l401ktimersoftd/323:20:113
8758993630,4cyclictest33-21ksoftirqd/200:37:072
8757993631,3cyclictest25-21ksoftirqd/123:29:391
8757993630,4cyclictest25-21ksoftirqd/120:58:401
8757993630,4cyclictest25-21ksoftirqd/120:11:331
8757993629,4cyclictest25-21ksoftirqd/120:35:101
8757993629,4cyclictest25-21ksoftirqd/100:12:581
8756993631,3cyclictest9-21ksoftirqd/000:31:580
139391360,0ptp4l401ktimersoftd/320:55:173
8759993530,3cyclictest41-21ksoftirqd/319:24:593
8759993529,4cyclictest41-21ksoftirqd/320:48:583
8759993529,4cyclictest41-21ksoftirqd/320:41:093
8758993529,4cyclictest33-21ksoftirqd/223:31:522
8758993529,4cyclictest33-21ksoftirqd/223:11:312
8758993529,4cyclictest33-21ksoftirqd/220:46:132
8758993529,4cyclictest33-21ksoftirqd/200:31:012
8757993529,4cyclictest25-21ksoftirqd/123:31:121
8757993529,4cyclictest25-21ksoftirqd/123:05:361
8757993529,4cyclictest25-21ksoftirqd/122:17:501
8757993529,4cyclictest25-21ksoftirqd/100:24:481
8756993529,4cyclictest9-21ksoftirqd/021:19:040
8756993529,4cyclictest9-21ksoftirqd/019:34:220
8756993529,4cyclictest9-21ksoftirqd/019:17:050
8756993528,5cyclictest9-21ksoftirqd/000:27:220
8756993522,11cyclictest9-21ksoftirqd/021:30:010
8759993429,3cyclictest41-21ksoftirqd/322:10:113
8759993428,4cyclictest41-21ksoftirqd/322:02:363
8759993428,4cyclictest41-21ksoftirqd/300:29:263
8759993428,3cyclictest41-21ksoftirqd/300:10:123
8758993429,3cyclictest33-21ksoftirqd/223:58:382
8758993428,4cyclictest33-21ksoftirqd/223:40:312
8758993428,4cyclictest33-21ksoftirqd/223:35:092
8758993428,4cyclictest33-21ksoftirqd/222:18:202
8758993428,4cyclictest33-21ksoftirqd/222:01:462
8758993428,4cyclictest33-21ksoftirqd/220:03:252
8758993428,4cyclictest33-21ksoftirqd/219:51:012
8758993428,4cyclictest33-21ksoftirqd/219:51:002
8758993428,4cyclictest33-21ksoftirqd/200:29:292
8757993429,3cyclictest25-21ksoftirqd/119:53:211
8757993429,3cyclictest25-21ksoftirqd/119:53:211
8757993429,3cyclictest25-21ksoftirqd/119:25:091
8757993428,4cyclictest25-21ksoftirqd/123:53:591
8757993428,4cyclictest25-21ksoftirqd/123:53:591
8757993428,4cyclictest25-21ksoftirqd/120:06:561
8757993427,4cyclictest25-21ksoftirqd/100:34:411
8756993429,3cyclictest9-21ksoftirqd/020:20:120
8756993429,3cyclictest9-21ksoftirqd/020:20:120
8756993428,4cyclictest9-21ksoftirqd/023:04:310
8756993428,4cyclictest9-21ksoftirqd/019:56:490
139391340,1ptp4l401ktimersoftd/300:35:183
8759993328,3cyclictest41-21ksoftirqd/322:46:413
8759993328,3cyclictest41-21ksoftirqd/322:06:013
8759993328,3cyclictest41-21ksoftirqd/321:45:113
8759993328,3cyclictest41-21ksoftirqd/321:16:553
8759993328,3cyclictest41-21ksoftirqd/319:55:003
8759993328,3cyclictest41-21ksoftirqd/319:55:003
8759993327,4cyclictest41-21ksoftirqd/322:21:453
8759993327,4cyclictest41-21ksoftirqd/320:08:103
8759993327,4cyclictest41-21ksoftirqd/319:35:123
8759993327,4cyclictest41-21ksoftirqd/300:06:433
8758993328,3cyclictest33-21ksoftirqd/200:14:292
8758993327,4cyclictest33-21ksoftirqd/223:29:272
8758993327,4cyclictest33-21ksoftirqd/221:51:472
8758993327,4cyclictest33-21ksoftirqd/221:46:262
8758993327,4cyclictest33-21ksoftirqd/220:31:042
8758993327,4cyclictest33-21ksoftirqd/220:19:132
8758993327,4cyclictest33-21ksoftirqd/219:36:372
8758993327,4cyclictest33-21ksoftirqd/219:17:472
8758993327,3cyclictest33-21ksoftirqd/200:17:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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