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2026-04-23 - 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 rackdslot3.osadl.org (updated Thu Apr 23, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491226159,23phc2sys0-21swapper/319:06:093
260752209176,22sleep10-21swapper/119:08:251
261012202169,22sleep20-21swapper/219:08:462
261292201168,22sleep00-21swapper/019:09:090
26638995713,22cyclictest7879-21/usr/sbin/munin20:45:173
57898490,12rtkit-daemon577-21rtkit-daemon00:15:140
26636994943,3cyclictest19660-21basename23:25:001
139391490,1ptp4l0-21swapper/319:45:053
82962430,1sleep20-21swapper/221:50:242
26637994337,4cyclictest26840-21cron21:25:002
26637994334,3cyclictest33-21ksoftirqd/220:40:002
139391430,0ptp4l401ktimersoftd/321:35:203
139391420,0ptp4l401ktimersoftd/300:25:353
139391420,0ptp4l401ktimersoftd/300:25:343
139391420,0ptp4l401ktimersoftd/300:01:153
1394914132,5phc2sys0-21swapper/319:10:023
26637994036,2cyclictest29207-21cron21:30:002
26636993934,3cyclictest25-21ksoftirqd/119:45:011
139391390,1ptp4l391rcuc/320:05:113
26636993832,4cyclictest25-21ksoftirqd/121:00:121
26635993834,3cyclictest9-21ksoftirqd/019:15:000
26635993834,2cyclictest9-21ksoftirqd/021:45:000
26635993833,3cyclictest9-21ksoftirqd/023:40:010
26635993833,3cyclictest9-21ksoftirqd/022:35:260
26635993833,3cyclictest9-21ksoftirqd/021:35:010
26635993833,3cyclictest9-21ksoftirqd/021:20:000
26635993833,3cyclictest3636-21cron19:30:000
26635993832,3cyclictest9-21ksoftirqd/000:15:010
26635993733,3cyclictest9-21ksoftirqd/000:20:170
26635993732,3cyclictest9-21ksoftirqd/021:00:000
26638993631,3cyclictest2973-21cron22:50:003
26638993630,4cyclictest41-21ksoftirqd/321:05:123
2663899360,22cyclictest3851-21chrt21:40:303
2663899360,22cyclictest11607-21chrt22:00:083
26637993632,3cyclictest33-21ksoftirqd/222:15:182
26637993631,3cyclictest33-21ksoftirqd/221:30:132
26637993629,4cyclictest33-21ksoftirqd/223:23:592
26636993631,3cyclictest25-21ksoftirqd/121:05:161
26636993631,3cyclictest25-21ksoftirqd/119:20:001
26636993630,4cyclictest25-21ksoftirqd/120:52:321
26636993630,4cyclictest25-21ksoftirqd/119:31:351
26636993629,5cyclictest25-21ksoftirqd/119:55:341
2663699361,33cyclictest22010-21cron23:30:001
2663699361,31cyclictest16515-21apt-get00:25:131
2663699361,31cyclictest16515-21apt-get00:25:121
26635993632,3cyclictest9-21ksoftirqd/000:00:000
26635993631,3cyclictest9-21ksoftirqd/021:55:180
26635993631,3cyclictest9-21ksoftirqd/020:05:000
26635993631,3cyclictest9-21ksoftirqd/019:35:130
26638993530,3cyclictest41-21ksoftirqd/323:50:203
26638993529,4cyclictest41-21ksoftirqd/321:05:003
2663899350,21cyclictest0-21swapper/319:35:243
26637993529,4cyclictest33-21ksoftirqd/223:51:562
26637993529,4cyclictest33-21ksoftirqd/223:31:022
26637993529,4cyclictest33-21ksoftirqd/222:00:472
26637993529,4cyclictest33-21ksoftirqd/220:44:592
26637993529,4cyclictest33-21ksoftirqd/220:32:152
26637993529,3cyclictest33-21ksoftirqd/220:49:152
26637993528,5cyclictest33-21ksoftirqd/222:13:232
26637993528,5cyclictest33-21ksoftirqd/219:45:442
26637993517,17cyclictest33-21ksoftirqd/222:25:002
26636993529,4cyclictest25-21ksoftirqd/122:22:291
26636993529,4cyclictest25-21ksoftirqd/121:35:001
26635993531,3cyclictest9-21ksoftirqd/023:40:240
26635993531,3cyclictest9-21ksoftirqd/021:50:180
26635993531,3cyclictest9-21ksoftirqd/000:25:190
26635993531,3cyclictest9-21ksoftirqd/000:25:190
26635993530,3cyclictest9-21ksoftirqd/023:45:180
26635993530,3cyclictest9-21ksoftirqd/021:35:250
26635993530,3cyclictest9-21ksoftirqd/021:15:000
26635993530,3cyclictest9-21ksoftirqd/020:30:120
26635993530,3cyclictest9-21ksoftirqd/019:55:000
26635993529,4cyclictest9-21ksoftirqd/000:09:590
26638993429,3cyclictest41-21ksoftirqd/320:43:553
26638993429,3cyclictest41-21ksoftirqd/320:03:143
26638993428,4cyclictest41-21ksoftirqd/300:08:333
26637993429,3cyclictest33-21ksoftirqd/200:17:072
26637993428,4cyclictest33-21ksoftirqd/220:55:372
26637993428,4cyclictest33-21ksoftirqd/220:21:352
26637993428,4cyclictest33-21ksoftirqd/219:51:102
26636993429,3cyclictest25-21ksoftirqd/123:35:111
26636993429,3cyclictest25-21ksoftirqd/120:26:261
26636993428,4cyclictest25-21ksoftirqd/122:56:431
26636993428,4cyclictest25-21ksoftirqd/122:30:351
26636993428,4cyclictest25-21ksoftirqd/121:57:051
26636993428,4cyclictest25-21ksoftirqd/120:47:141
26636993428,4cyclictest25-21ksoftirqd/100:34:381
26635993431,2cyclictest9-21ksoftirqd/019:19:590
26635993430,3cyclictest9-21ksoftirqd/020:15:140
26635993430,2cyclictest9-21ksoftirqd/023:15:130
26635993429,3cyclictest9-21ksoftirqd/020:50:120
26635993428,3cyclictest9-21ksoftirqd/023:00:000
26635993428,3cyclictest9-21ksoftirqd/019:35:010
26635993428,3cyclictest9-21ksoftirqd/000:35:180
26638993328,3cyclictest41-21ksoftirqd/322:12:593
26638993328,3cyclictest41-21ksoftirqd/319:24:523
26638993327,4cyclictest41-21ksoftirqd/322:22:383
26638993327,4cyclictest41-21ksoftirqd/320:53:213
26638993327,4cyclictest41-21ksoftirqd/320:11:103
26638993327,4cyclictest41-21ksoftirqd/319:53:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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