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2026-05-28 - 09:22
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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 Thu May 28, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591226162,22phc2sys0-21swapper/319:09:563
194512215151,22sleep00-21swapper/019:06:540
196312202169,22sleep10-21swapper/119:09:161
196322201168,21sleep20-21swapper/219:09:172
1065921680,5sleep21998799cyclictest19:55:172
1357921540,2sleep21998799cyclictest00:20:182
1969428162,10sleep20-21swapper/219:10:012
217902720,1sleep30-21swapper/321:20:233
19987997119,10cyclictest33-21ksoftirqd/222:25:232
19985996725,6cyclictest9-21ksoftirqd/000:35:220
19987996422,5cyclictest33-21ksoftirqd/220:30:192
19986996333,4cyclictest25-21ksoftirqd/119:50:131
19986996222,4cyclictest25-21ksoftirqd/100:00:171
19985996229,6cyclictest9-21ksoftirqd/023:00:180
19985996219,8cyclictest9-21ksoftirqd/019:10:230
19987996119,10cyclictest33-21ksoftirqd/221:45:262
19986996121,9cyclictest25-21ksoftirqd/100:11:131
19985996129,7cyclictest9-21ksoftirqd/021:50:150
19986996030,3cyclictest25-21ksoftirqd/123:10:001
19986996029,4cyclictest25-21ksoftirqd/120:50:001
19986996029,3cyclictest25-21ksoftirqd/123:25:121
19987995922,5cyclictest33-21ksoftirqd/223:55:132
19987995919,12cyclictest33-21ksoftirqd/223:30:182
19986995930,4cyclictest25-21ksoftirqd/121:35:001
19986995926,4cyclictest25-21ksoftirqd/120:10:131
19985995930,3cyclictest9-21ksoftirqd/021:35:260
19985995929,3cyclictest9-21ksoftirqd/000:09:080
19985995928,7cyclictest9-21ksoftirqd/020:40:190
19985995927,4cyclictest9-21ksoftirqd/019:50:120
19985995918,4cyclictest9-21ksoftirqd/000:20:260
313282580,4sleep231324-21switchtime20:35:252
19987995824,5cyclictest33-21ksoftirqd/221:30:192
19986995829,3cyclictest25-21ksoftirqd/120:35:141
19986995824,10cyclictest25-21ksoftirqd/123:10:121
19985995830,7cyclictest9-21ksoftirqd/021:05:170
19985995830,4cyclictest9-21ksoftirqd/000:10:150
19985995827,4cyclictest9-21ksoftirqd/021:55:120
19985995824,4cyclictest9-21ksoftirqd/000:00:130
19985995821,6cyclictest9-21ksoftirqd/020:35:010
19987995728,5cyclictest33-21ksoftirqd/219:30:182
19987995719,8cyclictest33-21ksoftirqd/219:35:192
19986995728,4cyclictest25-21ksoftirqd/123:35:211
19986995728,3cyclictest25-21ksoftirqd/120:20:111
19986995725,6cyclictest25-21ksoftirqd/121:15:131
19986995724,6cyclictest25-21ksoftirqd/123:40:221
19986995724,3cyclictest25-21ksoftirqd/121:20:161
19986995721,4cyclictest25-21ksoftirqd/122:00:141
19985995730,4cyclictest9-21ksoftirqd/023:20:130
19985995729,3cyclictest9-21ksoftirqd/019:45:200
19985995728,4cyclictest9-21ksoftirqd/021:45:140
19985995725,3cyclictest9-21ksoftirqd/020:10:240
19985995724,3cyclictest9-21ksoftirqd/020:25:150
19985995715,8cyclictest9-21ksoftirqd/023:40:130
51892560,2sleep30-21swapper/323:00:113
19986995630,4cyclictest25-21ksoftirqd/100:35:271
19986995626,4cyclictest25-21ksoftirqd/121:05:161
19986995625,3cyclictest25-21ksoftirqd/120:10:001
19986995623,3cyclictest25-21ksoftirqd/122:40:191
19986995621,3cyclictest25-21ksoftirqd/121:50:241
19985995629,3cyclictest9-21ksoftirqd/022:00:120
19985995628,4cyclictest9-21ksoftirqd/019:35:140
19985995627,8cyclictest9-21ksoftirqd/023:15:130
19985995627,8cyclictest9-21ksoftirqd/023:15:130
19985995627,3cyclictest9-21ksoftirqd/022:20:250
19986995527,7cyclictest25-21ksoftirqd/119:55:501
19986995521,6cyclictest25-21ksoftirqd/121:40:241
19986995521,6cyclictest25-21ksoftirqd/121:40:241
19985995527,4cyclictest9-21ksoftirqd/021:10:280
19985995527,4cyclictest9-21ksoftirqd/021:10:280
19985995527,4cyclictest9-21ksoftirqd/019:55:260
19985995523,6cyclictest9-21ksoftirqd/000:15:130
81412540,2sleep30-21swapper/320:55:163
232762540,3sleep31998899cyclictest22:30:153
19985995427,7cyclictest9-21ksoftirqd/023:55:240
19985995426,4cyclictest9-21ksoftirqd/022:35:150
124112540,2sleep00-21swapper/020:00:130
19987995321,16cyclictest33-21ksoftirqd/222:50:192
19986995327,4cyclictest25-21ksoftirqd/122:05:121
19986995325,7cyclictest25-21ksoftirqd/121:25:121
19985995327,4cyclictest9-21ksoftirqd/023:11:520
19985995325,10cyclictest9-21ksoftirqd/022:55:510
19985995317,7cyclictest9-21ksoftirqd/022:45:120
138491530,1ptp4l401ktimersoftd/321:41:123
138491530,1ptp4l401ktimersoftd/321:41:113
19987995220,5cyclictest33-21ksoftirqd/220:20:002
19987995216,5cyclictest33-21ksoftirqd/223:45:192
19987995216,5cyclictest33-21ksoftirqd/223:45:182
1998699526,8cyclictest12344-21apt-get20:00:121
19986995222,4cyclictest25-21ksoftirqd/123:00:241
19985995225,3cyclictest9-21ksoftirqd/022:31:080
19985995225,3cyclictest9-21ksoftirqd/022:15:260
19985995224,3cyclictest9-21ksoftirqd/019:15:260
19985995223,3cyclictest9-21ksoftirqd/020:05:240
1998599515,8cyclictest9-21ksoftirqd/019:40:180
19985995128,3cyclictest9-21ksoftirqd/023:30:140
19985995123,6cyclictest9-21ksoftirqd/021:02:420
19987995022,5cyclictest33-21ksoftirqd/221:00:002
19987995016,4cyclictest33-21ksoftirqd/221:55:262
19987995016,19cyclictest33-21ksoftirqd/220:10:192
19987995013,3cyclictest33-21ksoftirqd/220:50:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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