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2025-02-08 - 16:59
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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 Sat Feb 08, 2025 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2847191650,5ptp4l0-21swapper/011:15:270
2847191620,26ptp4l33-21ksoftirqd/211:10:222
2847191590,4ptp4l0-21swapper/107:20:241
2847191590,17ptp4l5840-21ls11:20:291
2847191580,3ptp4l0-21swapper/209:21:592
2847191580,3ptp4l0-21swapper/011:35:160
2847191580,3ptp4l0-21swapper/009:35:190
2847191570,5ptp4l0-21swapper/211:31:332
2847191570,4ptp4l12694-21python08:55:250
2847191560,4ptp4l0-21swapper/109:02:291
2847191560,3ptp4l0-21swapper/009:50:200
2847191550,5ptp4l0-21swapper/207:50:232
2847191550,4ptp4l0-21swapper/010:46:280
2847191550,4ptp4l0-21swapper/008:50:250
2847191550,3ptp4l0-21swapper/010:27:000
2847191550,3ptp4l0-21swapper/008:45:250
2847191540,4ptp4l0-21swapper/109:41:001
2847191540,4ptp4l0-21swapper/010:13:010
2847191540,3ptp4l0-21swapper/107:25:211
2847191530,3ptp4l0-21swapper/012:20:490
2847191520,4ptp4l0-21swapper/110:47:331
2847191510,4ptp4l0-21swapper/211:56:022
2847191510,4ptp4l0-21swapper/210:25:492
2847191510,4ptp4l0-21swapper/209:55:042
2847191510,4ptp4l0-21swapper/111:11:371
2847191510,4ptp4l0-21swapper/011:26:560
2847191510,4ptp4l0-21swapper/011:26:560
2847191510,4ptp4l0-21swapper/011:14:150
2847191510,4ptp4l0-21swapper/010:09:140
2847191510,4ptp4l0-21swapper/009:43:060
2847191510,4ptp4l0-21swapper/009:05:430
2847191510,4ptp4l0-21swapper/008:17:350
2847191510,3ptp4l0-21swapper/209:25:012
2847191510,3ptp4l0-21swapper/208:48:242
2847191510,3ptp4l0-21swapper/010:23:140
2847191500,9ptp4l27371-21meminfo07:05:200
2847191500,5ptp4l0-21swapper/008:44:300
2847191500,4ptp4l0-21swapper/112:31:241
2847191500,4ptp4l0-21swapper/010:42:230
2847191500,4ptp4l0-21swapper/007:59:530
2847191500,4ptp4l0-21swapper/007:35:280
2847191500,3ptp4l0-21swapper/108:41:481
2847191500,3ptp4l0-21swapper/108:10:111
2847191490,5ptp4l0-21swapper/007:15:130
2847191490,4ptp4l0-21swapper/209:17:112
2847191490,4ptp4l0-21swapper/109:23:171
2847191490,3ptp4l0-21swapper/211:45:002
2847191490,3ptp4l0-21swapper/109:48:441
2847191490,3ptp4l0-21swapper/011:05:120
2847191480,4ptp4l0-21swapper/011:24:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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