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2023-09-28 - 03:39
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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 rack7slot1.osadl.org (updated Thu Sep 28, 2023 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30959212157,59sleep20-21swapper/219:07:072
30929211553,21sleep00-21swapper/019:06:480
31113211355,20sleep10-21swapper/119:08:431
3118229365,23sleep30-21swapper/319:09:253
125662670,4sleep031958-21stress21:30:530
308592440,1sleep030858-21hwlatdetect22:05:240
176102429,12sleep30-21swapper/319:45:193
31379994014,16cyclictest0-21swapper/023:00:460
68792395,13sleep20-21swapper/220:24:382
51872390,2sleep131956-21stress00:15:291
3140299395,19cyclictest0-21swapper/222:25:312
31393993911,25cyclictest0-21swapper/123:00:151
3137999399,23cyclictest0-21swapper/019:30:330
31379993812,23cyclictest0-21swapper/022:03:110
309632389,12sleep30-21swapper/320:08:183
169002385,13sleep30-21swapper/319:42:113
160572385,13sleep20-21swapper/219:40:292
139892385,13sleep20-21swapper/219:35:472
96082375,12sleep30-21swapper/320:29:243
95992375,13sleep10-21swapper/120:29:181
53072375,13sleep10-21swapper/119:19:531
31393993714,20cyclictest0-21swapper/123:20:431
3137999378,19cyclictest0-21swapper/020:25:340
3137999376,20cyclictest0-21swapper/000:35:190
3137999375,18cyclictest0-21swapper/000:24:380
239852375,12sleep30-21swapper/320:55:113
227452375,13sleep10-21swapper/119:54:231
112872375,12sleep30-21swapper/319:31:123
48542365,13sleep00-21swapper/019:15:360
316532365,13sleep00-21swapper/021:07:450
3137999365,24cyclictest0-21swapper/019:54:290
31379993611,15cyclictest0-21swapper/019:41:390
287362365,13sleep00-21swapper/021:01:070
283482364,13sleep10-21swapper/120:04:351
263592364,13sleep20-21swapper/220:59:362
122342365,12sleep30-21swapper/320:32:373
85432353,11sleep20-21swapper/219:26:132
37372355,11sleep20-21swapper/220:16:042
314782355,9sleep20-21swapper/221:05:572
31408993518,15cyclictest0-21swapper/300:20:533
31408993514,18cyclictest0-21swapper/321:35:393
31408993513,20cyclictest0-21swapper/323:25:223
31408993513,20cyclictest0-21swapper/323:25:213
31408993513,19cyclictest0-21swapper/322:06:553
3140299356,17cyclictest0-21swapper/200:35:392
31393993512,20cyclictest0-21swapper/122:47:051
31393993512,20cyclictest0-21swapper/122:47:041
3137999359,24cyclictest0-21swapper/020:34:130
3137999359,16cyclictest0-21swapper/019:57:350
3137999359,16cyclictest0-21swapper/019:57:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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