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2026-09-04 - 17:28
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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 rackdslot4.osadl.org (updated Fri Sep 04, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202142206167,21sleep10-21swapper/107:06:141
203552205170,23sleep30-21swapper/307:08:053
203822204171,22sleep00-21swapper/007:08:260
202052200167,22sleep20-21swapper/207:06:072
121972870,5sleep012196-21ptp4l-jitter09:00:220
2080799621,19cyclictest17093-21irqstats10:15:202
36272550,2sleep30-21swapper/312:00:133
2080799550,21cyclictest24663-21awk09:25:232
138491550,1ptp4l401ktimersoftd/308:13:363
138491540,1ptp4l401ktimersoftd/311:27:013
118382520,2sleep00-21swapper/012:15:180
138491510,1ptp4l401ktimersoftd/310:39:303
166662490,2sleep30-21swapper/311:20:183
20808994843,3cyclictest13272-21cron11:15:003
138491440,0ptp4l401ktimersoftd/310:08:383
20808994325,16cyclictest32742-21cron09:45:013
20805994338,3cyclictest17961-21turbostat.cron12:30:000
20805994328,13cyclictest9-21ksoftirqd/011:25:010
138491430,0ptp4l401ktimersoftd/312:25:503
138491430,0ptp4l401ktimersoftd/311:15:163
138491430,0ptp4l401ktimersoftd/310:20:263
20806994034,3cyclictest6662-21irqrtprio11:00:181
2080799390,25cyclictest11289-21fschecks_count09:00:142
20806993933,3cyclictest3221-21ls07:40:011
20806993930,5cyclictest25-21ksoftirqd/111:45:111
20806993930,5cyclictest25-21ksoftirqd/111:45:111
2804823832,3sleep09-21ksoftirqd/009:35:080
20806993833,3cyclictest25-21ksoftirqd/107:20:001
20806993832,3cyclictest25-21ksoftirqd/110:40:001
20806993831,4cyclictest20424-21turbostat.cron12:35:001
20805993833,3cyclictest9-21ksoftirqd/007:20:120
20808993731,4cyclictest41-21ksoftirqd/307:15:103
20806993732,3cyclictest25-21ksoftirqd/111:55:301
20805993732,3cyclictest9-21ksoftirqd/007:40:010
20805993731,4cyclictest9-21ksoftirqd/009:42:580
20808993631,3cyclictest41-21ksoftirqd/307:37:293
20808993630,4cyclictest41-21ksoftirqd/312:12:303
20808993630,4cyclictest41-21ksoftirqd/311:35:113
20807993631,3cyclictest33-21ksoftirqd/212:05:012
20807993631,3cyclictest33-21ksoftirqd/211:36:422
20807993629,5cyclictest33-21ksoftirqd/212:30:002
20806993633,2cyclictest25-21ksoftirqd/107:30:001
20806993632,2cyclictest25-21ksoftirqd/107:50:001
20806993631,4cyclictest25-21ksoftirqd/108:35:201
20806993631,3cyclictest25-21ksoftirqd/111:50:211
20806993631,3cyclictest25-21ksoftirqd/111:20:191
20806993631,3cyclictest25-21ksoftirqd/110:15:001
20806993631,3cyclictest25-21ksoftirqd/107:30:181
20806993630,4cyclictest25-21ksoftirqd/110:52:361
20806993630,4cyclictest25-21ksoftirqd/108:46:311
20806993630,3cyclictest25-21ksoftirqd/112:09:591
20806993630,3cyclictest25-21ksoftirqd/111:20:001
20806993629,4cyclictest25-21ksoftirqd/110:05:001
2080699360,35cyclictest0-21swapper/108:10:011
20805993630,4cyclictest9-21ksoftirqd/010:36:390
20805993630,4cyclictest9-21ksoftirqd/009:23:290
138491360,0ptp4l401ktimersoftd/311:40:283
138491360,0ptp4l401ktimersoftd/311:00:133
20808993530,3cyclictest41-21ksoftirqd/312:30:103
20808993530,3cyclictest41-21ksoftirqd/307:40:113
20808993529,4cyclictest41-21ksoftirqd/312:17:553
20808993529,4cyclictest41-21ksoftirqd/311:54:153
20808993529,4cyclictest41-21ksoftirqd/310:49:173
20808993529,4cyclictest41-21ksoftirqd/310:27:463
20808993529,4cyclictest41-21ksoftirqd/309:29:303
20808993529,4cyclictest41-21ksoftirqd/307:26:093
20808993529,4cyclictest41-21ksoftirqd/307:13:263
20808993529,4cyclictest41-21ksoftirqd/307:13:263
20807993529,4cyclictest33-21ksoftirqd/212:15:042
20807993529,4cyclictest33-21ksoftirqd/210:59:182
20807993529,4cyclictest33-21ksoftirqd/209:56:002
20807993529,4cyclictest33-21ksoftirqd/209:30:442
2080799350,33cyclictest13231-21sshd11:14:432
20806993530,3cyclictest25-21ksoftirqd/110:55:111
20806993530,3cyclictest25-21ksoftirqd/108:04:411
20806993530,3cyclictest25-21ksoftirqd/107:55:001
20806993529,4cyclictest25-21ksoftirqd/111:30:231
20806993529,4cyclictest25-21ksoftirqd/109:53:391
20806993529,4cyclictest25-21ksoftirqd/109:20:571
20806993529,4cyclictest25-21ksoftirqd/108:42:381
20806993529,3cyclictest25-21ksoftirqd/112:10:231
20805993530,3cyclictest9-21ksoftirqd/012:35:170
20805993530,3cyclictest9-21ksoftirqd/012:02:080
20805993530,3cyclictest9-21ksoftirqd/010:05:000
20805993529,4cyclictest9-21ksoftirqd/012:21:280
20805993529,4cyclictest9-21ksoftirqd/012:21:280
20805993529,4cyclictest9-21ksoftirqd/007:51:170
20805993528,5cyclictest9-21ksoftirqd/008:17:100
20808993429,3cyclictest41-21ksoftirqd/310:32:073
20808993429,3cyclictest41-21ksoftirqd/307:52:093
20808993428,4cyclictest41-21ksoftirqd/310:14:183
20808993428,4cyclictest41-21ksoftirqd/308:40:443
20808993428,4cyclictest41-21ksoftirqd/308:26:193
20808993428,4cyclictest41-21ksoftirqd/308:26:193
20808993428,4cyclictest41-21ksoftirqd/307:20:083
20808993427,4cyclictest41-21ksoftirqd/312:35:093
20807993429,3cyclictest33-21ksoftirqd/208:19:202
20807993428,4cyclictest33-21ksoftirqd/211:53:072
20807993428,4cyclictest33-21ksoftirqd/211:41:512
20807993428,4cyclictest33-21ksoftirqd/211:24:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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