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2025-03-20 - 02:27
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack3slot6.osadl.org (updated Thu Mar 20, 2025 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25987210222,34sleep10-21swapper/119:05:421
2483129132,45sleep00-21swapper/019:05:140
2892028123,33sleep00-21swapper/019:15:140
2657199816,65cyclictest0-21swapper/020:55:160
26574997328,40cyclictest26-21ksoftirqd/100:15:261
26574997146,12cyclictest26-21ksoftirqd/119:35:151
26574997121,45cyclictest0-21swapper/119:40:151
26574997121,45cyclictest0-21swapper/119:40:141
26571997033,23cyclictest14-21ksoftirqd/022:32:090
26574996924,41cyclictest26-21ksoftirqd/122:20:151
2657199697,54cyclictest0-21swapper/021:40:130
26571996830,26cyclictest14-21ksoftirqd/000:01:300
26571996749,11cyclictest14-21ksoftirqd/020:39:370
26574996639,13cyclictest26-21ksoftirqd/119:50:171
2657499656,43cyclictest0-21swapper/119:45:181
26574996536,22cyclictest14804-21seq23:35:131
26574996535,20cyclictest26-21ksoftirqd/123:00:151
26571996435,12cyclictest14-21ksoftirqd/020:10:150
26571996434,10cyclictest14-21ksoftirqd/023:20:330
26574996334,20cyclictest26-21ksoftirqd/121:30:181
2657199637,49cyclictest0-21swapper/022:15:160
26571996341,17cyclictest14-21ksoftirqd/020:40:270
26571996340,17cyclictest14-21ksoftirqd/022:20:160
26571996323,33cyclictest14-21ksoftirqd/023:29:230
26571996236,21cyclictest14-21ksoftirqd/023:31:110
26571996224,32cyclictest14-21ksoftirqd/020:00:430
26574996137,16cyclictest441-21dbus-daemon21:05:001
26574996132,16cyclictest0-21swapper/122:35:251
26571996140,16cyclictest14-21ksoftirqd/022:10:310
26571996132,22cyclictest14-21ksoftirqd/019:55:150
26571996123,32cyclictest14-21ksoftirqd/023:40:210
2657499604,26cyclictest25054-21awk00:10:011
26574996032,22cyclictest26-21ksoftirqd/119:15:141
26574996030,22cyclictest7016-21cron23:10:001
26571996037,17cyclictest14-21ksoftirqd/021:55:190
26571996036,18cyclictest14-21ksoftirqd/019:30:210
26571996032,22cyclictest14-21ksoftirqd/022:55:290
26571996030,25cyclictest14-21ksoftirqd/019:37:300
26571996018,17cyclictest30844-21cron20:54:590
26574995935,18cyclictest26-21ksoftirqd/120:05:191
26574995933,18cyclictest0-21swapper/120:40:241
26574995931,17cyclictest0-21swapper/120:35:141
26574995915,40cyclictest0-21swapper/121:50:221
2657199595,40cyclictest0-21swapper/019:20:170
26571995940,12cyclictest14-21ksoftirqd/022:06:440
26571995936,17cyclictest14-21ksoftirqd/021:50:020
26571995924,29cyclictest0-21swapper/000:15:130
26574995831,21cyclictest26-21ksoftirqd/123:40:151
26574995830,21cyclictest26-21ksoftirqd/121:05:151
26574995829,21cyclictest441-21dbus-daemon00:39:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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