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2026-07-28 - 06:15
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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 Tue Jul 28, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591205141,52phc2sys0-21swapper/319:08:253
115232205171,23sleep20-21swapper/219:08:512
114072204170,23sleep10-21swapper/119:07:211
112662202168,22sleep00-21swapper/019:05:400
691121540,5sleep31196599cyclictest20:04:593
2468721400,4sleep21196499cyclictest20:40:132
138491670,1ptp4l401ktimersoftd/300:15:453
255392650,4sleep00-21swapper/020:40:190
138491630,1ptp4l401ktimersoftd/319:13:453
11962995926,5cyclictest9-21ksoftirqd/019:30:130
11962995826,5cyclictest9-21ksoftirqd/022:05:270
11962995825,5cyclictest9-21ksoftirqd/021:40:120
138491560,1ptp4l401ktimersoftd/322:47:453
1196299566,10cyclictest9-21ksoftirqd/000:40:000
11962995622,5cyclictest9-21ksoftirqd/022:40:240
11962995622,5cyclictest9-21ksoftirqd/019:25:240
1196299556,7cyclictest9-21ksoftirqd/022:22:190
11962995428,7cyclictest9-21ksoftirqd/023:57:310
11962995418,6cyclictest9-21ksoftirqd/019:40:260
53942530,3sleep25397-21irqrtprio21:05:202
138491530,1ptp4l391rcuc/320:10:303
1196299537,4cyclictest26752-21cron22:55:000
1196299535,8cyclictest9-21ksoftirqd/019:15:490
11962995325,5cyclictest9-21ksoftirqd/020:00:250
11962995322,11cyclictest9-21ksoftirqd/020:05:130
109922530,2sleep20-21swapper/221:15:282
138491520,1ptp4l401ktimersoftd/321:40:243
1196299524,9cyclictest9-21ksoftirqd/020:55:260
1196299523,6cyclictest9-21ksoftirqd/023:45:140
11962995219,5cyclictest9-21ksoftirqd/000:21:470
77382510,6sleep01196299cyclictest23:20:180
1196299516,8cyclictest9-21ksoftirqd/020:25:190
1196299516,4cyclictest9-21ksoftirqd/023:15:000
1196299515,4cyclictest9-21ksoftirqd/019:35:260
1196299515,10cyclictest9-21ksoftirqd/020:40:000
1196299514,10cyclictest9-21ksoftirqd/019:20:170
11962995123,5cyclictest9-21ksoftirqd/021:05:230
11962995120,6cyclictest9-21ksoftirqd/022:00:270
1196299510,7cyclictest9-21ksoftirqd/021:35:160
1196299510,12cyclictest9-21ksoftirqd/022:35:140
95162500,2sleep20-21swapper/220:10:002
1196299506,7cyclictest9-21ksoftirqd/021:25:260
1196299506,5cyclictest9-21ksoftirqd/000:05:280
1196299505,9cyclictest9-21ksoftirqd/000:25:190
1196299505,7cyclictest9-21ksoftirqd/023:30:230
1196299505,5cyclictest9-21ksoftirqd/000:00:180
250022490,2sleep30-21swapper/323:55:153
1196299496,8cyclictest9-21ksoftirqd/023:40:260
1196299496,7cyclictest9-21ksoftirqd/020:45:200
1196299495,6cyclictest9-21ksoftirqd/022:30:240
1196299495,4cyclictest9-21ksoftirqd/022:15:000
1196299494,6cyclictest9-21ksoftirqd/022:25:230
11962994946,2cyclictest111rcuc/019:50:160
11962994942,4cyclictest1755-21basename23:10:010
1196299493,4cyclictest9-21ksoftirqd/023:55:010
1196299492,5cyclictest9-21ksoftirqd/021:15:240
1196299491,5cyclictest9-21ksoftirqd/020:15:180
1196299490,5cyclictest101ktimersoftd/021:05:000
138491480,1ptp4l391rcuc/322:57:363
1196299485,6cyclictest9-21ksoftirqd/021:10:160
1196299485,5cyclictest9-21ksoftirqd/023:15:140
1196299485,5cyclictest9-21ksoftirqd/020:30:140
1196299485,5cyclictest9-21ksoftirqd/019:45:210
1196299485,5cyclictest9-21ksoftirqd/019:45:210
1196299485,4cyclictest9-21ksoftirqd/022:45:270
1196299484,5cyclictest9-21ksoftirqd/019:10:200
1196299483,9cyclictest9-21ksoftirqd/022:15:200
1196299482,5cyclictest9-21ksoftirqd/020:20:190
1196299482,5cyclictest9-21ksoftirqd/000:10:200
1196299481,5cyclictest101ktimersoftd/021:20:210
1196299475,6cyclictest9-21ksoftirqd/021:55:220
1196299475,6cyclictest9-21ksoftirqd/021:45:220
1196299475,6cyclictest9-21ksoftirqd/021:45:220
1196299475,5cyclictest9-21ksoftirqd/021:30:130
1196299474,5cyclictest9-21ksoftirqd/020:10:140
1196299473,5cyclictest9-21ksoftirqd/000:30:280
1196299465,7cyclictest9-21ksoftirqd/022:55:140
1196299465,3cyclictest9-21ksoftirqd/021:50:210
1196299463,5cyclictest9-21ksoftirqd/023:30:000
1196299463,5cyclictest9-21ksoftirqd/019:55:160
1196299463,5cyclictest9-21ksoftirqd/000:15:120
1196299462,5cyclictest9-21ksoftirqd/020:50:260
11962994615,5cyclictest9-21ksoftirqd/023:35:120
1196299454,7cyclictest9-21ksoftirqd/023:00:060
138491440,0ptp4l401ktimersoftd/320:40:313
138491430,0ptp4l401ktimersoftd/323:47:333
11965994337,4cyclictest41-21ksoftirqd/319:36:523
138491420,0ptp4l401ktimersoftd/320:18:533
11965994237,3cyclictest12214-21cron00:35:013
138491400,0ptp4l401ktimersoftd/322:30:163
11963993934,3cyclictest25-21ksoftirqd/120:20:001
11963993833,3cyclictest25-21ksoftirqd/123:40:001
11963993832,3cyclictest21629-21cron22:44:591
11964993731,4cyclictest33-21ksoftirqd/222:09:552
11964993731,4cyclictest33-21ksoftirqd/220:34:552
1196499370,35cyclictest0-21swapper/219:45:232
1196499370,35cyclictest0-21swapper/219:45:232
11963993732,3cyclictest25-21ksoftirqd/123:55:001
11963993732,3cyclictest25-21ksoftirqd/119:25:011
138491360,13ptp4l401ktimersoftd/319:55:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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