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2025-04-02 - 08:16
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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 Wed Apr 02, 2025 00:45:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2847191720,7ptp4l25-21ksoftirqd/119:15:191
276002720,6sleep00-21swapper/020:50:300
2847191700,9ptp4l0-21swapper/321:27:293
2847191650,4ptp4l0-21swapper/122:35:131
2847191610,4ptp4l0-21swapper/322:48:203
2847191610,4ptp4l0-21swapper/321:34:143
2847191610,4ptp4l0-21swapper/321:13:343
15734996115,44cyclictest0-21swapper/121:29:201
2847191600,4ptp4l0-21swapper/321:21:033
2847191600,4ptp4l0-21swapper/321:01:003
2847191600,4ptp4l0-21swapper/320:39:213
2847191600,4ptp4l0-21swapper/319:26:083
2847191600,4ptp4l0-21swapper/023:23:320
2847191590,4ptp4l0-21swapper/120:39:391
2847191580,4ptp4l0-21swapper/321:19:033
2847191580,4ptp4l0-21swapper/320:14:033
2847191580,3ptp4l0-21swapper/221:31:402
2847191580,3ptp4l0-21swapper/220:21:492
2847191580,3ptp4l0-21swapper/120:34:421
1573399582,5cyclictest0-21swapper/023:05:010
2847191570,4ptp4l0-21swapper/322:06:343
2847191570,4ptp4l0-21swapper/122:10:331
2847191570,4ptp4l0-21swapper/100:12:301
2847191570,4ptp4l0-21swapper/100:01:191
2847191570,4ptp4l0-21swapper/020:59:460
2847191570,3ptp4l0-21swapper/019:49:220
2847191570,3ptp4l0-21swapper/000:22:250
2847191560,4ptp4l0-21swapper/323:45:153
2847191560,4ptp4l0-21swapper/121:52:561
2847191560,4ptp4l0-21swapper/100:19:201
2847191560,3ptp4l0-21swapper/121:30:231
2847191560,3ptp4l0-21swapper/100:23:131
2847191560,3ptp4l0-21swapper/020:35:470
2847191560,14ptp4l14314-21grep19:05:190
15734995610,44cyclictest0-21swapper/121:11:591
2847191550,4ptp4l0-21swapper/320:34:323
2847191550,4ptp4l0-21swapper/319:38:453
2847191550,4ptp4l0-21swapper/300:35:093
2847191550,4ptp4l0-21swapper/123:44:301
2847191550,3ptp4l0-21swapper/121:36:231
2847191550,3ptp4l0-21swapper/120:28:531
2847191550,15ptp4l14459-21netstat19:05:221
2847191540,4ptp4l0-21swapper/319:43:213
2847191540,4ptp4l0-21swapper/122:30:081
2847191540,3ptp4l0-21swapper/021:36:250
2847191530,4ptp4l0-21swapper/323:31:183
2847191530,4ptp4l0-21swapper/322:23:273
2847191530,4ptp4l0-21swapper/022:41:360
2847191530,3ptp4l0-21swapper/122:56:031
2847191530,3ptp4l0-21swapper/119:21:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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