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2026-07-08 - 13:05
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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 Wed Jul 08, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
220192234166,23sleep30-21swapper/319:09:283
218612223160,51sleep00-21swapper/019:07:240
218402203170,22sleep10-21swapper/119:07:091
218982201169,21sleep20-21swapper/219:07:542
1184421380,5sleep22235599cyclictest23:10:002
181482610,6sleep02235399cyclictest22:15:220
2235599580,19cyclictest16945-21/usr/sbin/munin22:15:202
51122510,1sleep00-21swapper/019:40:130
22355995113,6cyclictest33-21ksoftirqd/223:40:132
183642500,2sleep20-21swapper/220:05:182
2235599492,12cyclictest4153-21chrt20:40:482
2206024834,7sleep30-21swapper/319:10:003
22356994712,7cyclictest41-21ksoftirqd/320:15:283
2235699463,5cyclictest41-21ksoftirqd/320:40:143
22355994513,5cyclictest33-21ksoftirqd/219:22:552
138491440,0ptp4l401ktimersoftd/322:13:583
2235699432,5cyclictest41-21ksoftirqd/322:31:533
2235699426,5cyclictest41-21ksoftirqd/319:50:243
2235699422,5cyclictest41-21ksoftirqd/319:20:173
2235699421,15cyclictest7462-21cat21:55:143
2235699411,6cyclictest41-21ksoftirqd/323:31:463
138491410,0ptp4l401ktimersoftd/321:45:013
2235699406,5cyclictest41-21ksoftirqd/319:15:303
2235699404,5cyclictest41-21ksoftirqd/300:25:143
2235699402,5cyclictest41-21ksoftirqd/321:50:133
2235699402,5cyclictest41-21ksoftirqd/321:20:123
2235599405,17cyclictest31283-21awk20:30:272
22353994035,3cyclictest30889-21cat19:25:220
50798390,7rtkit-daemon0-21swapper/123:56:421
2235699392,6cyclictest41-21ksoftirqd/322:55:253
2235699392,5cyclictest41-21ksoftirqd/321:15:233
2235699392,5cyclictest41-21ksoftirqd/320:55:393
2235599393,11cyclictest6241-21gzip19:40:232
2235699387,5cyclictest41-21ksoftirqd/319:25:243
22356993830,5cyclictest41-21ksoftirqd/300:20:003
2235699382,5cyclictest41-21ksoftirqd/323:35:163
2235699382,5cyclictest41-21ksoftirqd/319:35:183
22355993831,4cyclictest31586-21cron22:45:002
2235399382,4cyclictest9-21ksoftirqd/023:31:210
22353993822,6cyclictest9-21ksoftirqd/020:10:130
138491380,0ptp4l401ktimersoftd/323:53:393
2235699374,3cyclictest41-21ksoftirqd/322:40:113
2235699372,5cyclictest41-21ksoftirqd/323:25:253
2235699372,5cyclictest41-21ksoftirqd/320:45:213
2235599375,5cyclictest33-21ksoftirqd/221:14:372
22355993731,4cyclictest33-21ksoftirqd/220:19:102
22355993730,5cyclictest33-21ksoftirqd/222:48:022
2235599372,6cyclictest321ktimersoftd/223:32:112
22354993732,3cyclictest25-21ksoftirqd/100:15:001
22354993731,4cyclictest25-21ksoftirqd/121:31:461
22354993731,4cyclictest25-21ksoftirqd/121:04:341
2235499370,35cyclictest0-21swapper/123:46:131
22353993730,4cyclictest9-21ksoftirqd/000:31:180
50798360,2rtkit-daemon0-21swapper/120:43:521
2235699365,4cyclictest41-21ksoftirqd/322:15:293
22356993633,2cyclictest41-21ksoftirqd/321:30:253
2235699361,5cyclictest41-21ksoftirqd/323:45:263
2235699361,5cyclictest41-21ksoftirqd/321:10:233
2235699361,32cyclictest10319-21irqrtprio22:00:193
2235599367,5cyclictest33-21ksoftirqd/220:25:432
22355993630,4cyclictest33-21ksoftirqd/200:00:422
22354993631,3cyclictest25-21ksoftirqd/123:35:431
22354993631,3cyclictest25-21ksoftirqd/122:40:001
22354993630,4cyclictest25-21ksoftirqd/122:11:141
22354993630,4cyclictest25-21ksoftirqd/120:12:391
22354993630,4cyclictest25-21ksoftirqd/119:45:591
22354993630,4cyclictest25-21ksoftirqd/119:32:481
22354993630,3cyclictest25-21ksoftirqd/119:25:131
22354993629,4cyclictest25-21ksoftirqd/120:16:571
22353993630,4cyclictest9-21ksoftirqd/021:56:040
22353993630,4cyclictest9-21ksoftirqd/020:59:520
22356993529,4cyclictest4494-21cron00:00:013
22356993529,4cyclictest41-21ksoftirqd/319:48:223
22356993529,3cyclictest41-21ksoftirqd/321:05:093
2235699352,5cyclictest41-21ksoftirqd/319:55:343
2235699352,5cyclictest41-21ksoftirqd/300:02:083
2235699351,5cyclictest41-21ksoftirqd/323:20:223
2235699351,5cyclictest41-21ksoftirqd/320:05:183
2235599355,4cyclictest33-21ksoftirqd/222:55:232
22355993529,4cyclictest33-21ksoftirqd/221:54:382
22355993529,4cyclictest33-21ksoftirqd/219:30:492
22355993528,4cyclictest33-21ksoftirqd/222:30:202
22355993513,6cyclictest33-21ksoftirqd/222:20:232
22354993529,4cyclictest25-21ksoftirqd/123:16:291
22354993529,4cyclictest25-21ksoftirqd/122:51:381
22354993529,4cyclictest25-21ksoftirqd/122:33:111
22354993529,4cyclictest25-21ksoftirqd/122:24:301
22354993529,4cyclictest25-21ksoftirqd/122:04:041
22354993529,4cyclictest25-21ksoftirqd/121:27:131
22354993529,4cyclictest25-21ksoftirqd/121:27:131
22354993529,4cyclictest25-21ksoftirqd/121:23:561
22354993529,4cyclictest25-21ksoftirqd/120:35:421
22354993529,4cyclictest25-21ksoftirqd/120:33:411
22354993529,4cyclictest25-21ksoftirqd/100:37:171
22354993529,4cyclictest25-21ksoftirqd/100:28:541
22353993529,4cyclictest9-21ksoftirqd/022:21:000
22353993529,4cyclictest9-21ksoftirqd/020:40:590
22353993529,3cyclictest9-21ksoftirqd/021:30:120
22353993528,4cyclictest9-21ksoftirqd/021:43:090
22353993528,4cyclictest9-21ksoftirqd/019:45:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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