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2024-11-22 - 11:06
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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 50 highest latencies:
System rackdslot3.osadl.org (updated Fri Nov 22, 2024 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147591206174,21phc2sys0-21swapper/319:08:183
152822200167,22sleep00-21swapper/019:09:160
151042199165,22sleep10-21swapper/119:07:001
150402197164,22sleep20-21swapper/219:06:092
15629996421,4cyclictest25-21ksoftirqd/120:15:131
15629996325,8cyclictest25-21ksoftirqd/123:25:011
15629996128,4cyclictest25-21ksoftirqd/122:15:271
1562999599,48cyclictest0-21swapper/121:30:291
15629995828,9cyclictest25-21ksoftirqd/119:50:131
15629995825,4cyclictest25-21ksoftirqd/121:55:121
15629995729,10cyclictest25-21ksoftirqd/120:20:251
15629995724,4cyclictest25-21ksoftirqd/100:05:001
15629995720,9cyclictest25-21ksoftirqd/123:35:271
15629995719,10cyclictest25-21ksoftirqd/121:20:011
15629995625,9cyclictest25-21ksoftirqd/121:50:131
15629995624,4cyclictest25-21ksoftirqd/123:30:321
15629995618,7cyclictest25-21ksoftirqd/120:05:171
307982550,3sleep1241ktimersoftd/119:40:211
15629995524,4cyclictest25-21ksoftirqd/119:15:161
15629995521,7cyclictest25-21ksoftirqd/122:35:001
15629995519,4cyclictest25-21ksoftirqd/121:10:261
15629995519,4cyclictest25-21ksoftirqd/120:35:171
15629995426,4cyclictest25-21ksoftirqd/120:10:141
15629995422,4cyclictest25-21ksoftirqd/100:15:191
15629995418,4cyclictest25-21ksoftirqd/120:45:221
15629995417,11cyclictest25-21ksoftirqd/121:00:191
147491540,1ptp4l401ktimersoftd/320:11:283
1563099531,49cyclictest32162-21cron19:45:002
15629995323,4cyclictest25-21ksoftirqd/119:30:211
15629995323,10cyclictest25-21ksoftirqd/122:10:171
15629995319,10cyclictest25-21ksoftirqd/121:05:141
15629995318,6cyclictest25-21ksoftirqd/123:40:211
15629995317,4cyclictest25-21ksoftirqd/122:25:201
15629995317,4cyclictest25-21ksoftirqd/120:50:251
147491530,0ptp4l401ktimersoftd/321:37:123
162912520,2sleep10-21swapper/121:25:201
15629995219,5cyclictest25-21ksoftirqd/119:25:151
15629995218,4cyclictest25-21ksoftirqd/121:15:161
15629995217,4cyclictest25-21ksoftirqd/122:35:181
15629995217,10cyclictest25-21ksoftirqd/119:35:161
1562999515,7cyclictest25-21ksoftirqd/119:55:141
15629995123,10cyclictest25-21ksoftirqd/100:35:141
15629995122,7cyclictest25-21ksoftirqd/120:55:221
15629995120,7cyclictest25-21ksoftirqd/123:05:291
15629995119,3cyclictest25-21ksoftirqd/123:58:371
15629995117,5cyclictest25-21ksoftirqd/121:35:111
147491510,1ptp4l391rcuc/322:47:173
144391510,1getstats5483-1kworker/3:0H19:40:163
15629995020,4cyclictest25-21ksoftirqd/100:05:271
15629995019,9cyclictest25-21ksoftirqd/123:00:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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