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2024-04-25 - 05:43
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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 rackdslot1.osadl.org (updated Thu Apr 25, 2024 00:46:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1176911720,15ptp4l0-21swapper/019:08:260
1176911670,15ptp4l0-21swapper/319:05:353
921421640,8sleep0500399cyclictest21:45:180
1176911520,6ptp4l0-21swapper/219:05:242
1176911520,12ptp4l0-21swapper/119:05:011
117691860,7ptp4l0-21swapper/219:10:012
117691730,2ptp4l0-21swapper/320:30:253
117691690,1ptp4l0-21swapper/322:55:273
260402680,2sleep30-21swapper/323:30:153
117691680,2ptp4l0-21swapper/320:54:543
118402660,2sleep20-21swapper/220:40:232
118402660,2sleep20-21swapper/220:40:232
117691650,2ptp4l0-21swapper/022:50:510
117691630,2ptp4l0-21swapper/319:50:163
282422620,3sleep2500599cyclictest22:25:182
117691620,4ptp4l16073-21apt-get22:00:113
5004996123,7cyclictest25-21ksoftirqd/120:00:251
117691610,8ptp4l0-21swapper/020:25:310
117691610,2ptp4l0-21swapper/121:57:291
5003995924,10cyclictest9-21ksoftirqd/020:05:250
117691590,2ptp4l0-21swapper/321:13:183
117691590,2ptp4l0-21swapper/320:21:583
5003995825,5cyclictest9-21ksoftirqd/023:25:190
117691580,8ptp4l0-21swapper/219:55:022
117691580,4ptp4l25714-21apt-get20:05:052
117691580,2ptp4l0-21swapper/323:25:303
117691580,2ptp4l0-21swapper/222:02:232
5005995724,5cyclictest33-21ksoftirqd/221:35:232
5005995723,9cyclictest33-21ksoftirqd/222:25:012
5004995729,7cyclictest25-21ksoftirqd/121:00:291
5004995719,5cyclictest25-21ksoftirqd/120:45:341
5004995719,4cyclictest25-21ksoftirqd/121:25:261
5003995726,5cyclictest9-21ksoftirqd/019:30:150
5003995725,5cyclictest9-21ksoftirqd/019:45:190
117691570,7ptp4l0-21swapper/021:22:540
117691570,2ptp4l0-21swapper/223:16:122
5005995646,5cyclictest33-21ksoftirqd/223:40:112
5005995617,3cyclictest33-21ksoftirqd/219:40:192
5003995625,5cyclictest9-21ksoftirqd/023:30:150
5003995625,4cyclictest9-21ksoftirqd/019:55:010
5003995624,5cyclictest9-21ksoftirqd/020:45:320
117691560,2ptp4l0-21swapper/321:29:193
117691560,2ptp4l0-21swapper/320:35:163
117691560,2ptp4l0-21swapper/122:55:191
117691560,2ptp4l0-21swapper/122:28:401
117691560,2ptp4l0-21swapper/019:14:560
5005995527,12cyclictest33-21ksoftirqd/220:55:002
5005995520,4cyclictest33-21ksoftirqd/222:10:102
5005995512,5cyclictest33-21ksoftirqd/200:35:112
5004995518,5cyclictest25-21ksoftirqd/100:30:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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