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2025-07-04 - 09:46
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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 Fri Jul 04, 2025 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27162211757,20sleep30-21swapper/319:08:323
27144211655,20sleep20-21swapper/219:08:192
26940211248,59sleep00-21swapper/019:05:440
2704829845,48sleep10-21swapper/119:07:101
264482690,1sleep314060-21stress21:37:113
264482690,1sleep314060-21stress21:37:113
27377994911,27cyclictest0-21swapper/300:30:013
27377994220,19cyclictest0-21swapper/322:21:263
27377994220,19cyclictest0-21swapper/322:21:263
27377994121,17cyclictest0-21swapper/321:53:553
27377994121,17cyclictest0-21swapper/321:53:543
27376993915,21cyclictest0-21swapper/200:16:452
27375993811,25cyclictest0-21swapper/123:55:111
27375993811,24cyclictest0-21swapper/121:46:451
27375993810,25cyclictest0-21swapper/123:25:211
118082385,13sleep00-21swapper/021:04:250
78842375,13sleep00-21swapper/020:55:070
292942375,13sleep20-21swapper/220:27:262
27377993721,14cyclictest0-21swapper/323:19:103
27377993721,14cyclictest0-21swapper/321:40:223
27376993717,17cyclictest0-21swapper/222:35:222
27375993714,20cyclictest0-21swapper/100:11:111
27375993712,23cyclictest0-21swapper/122:34:401
27375993712,22cyclictest0-21swapper/122:35:301
27375993711,23cyclictest0-21swapper/123:50:301
2737499379,23cyclictest0-21swapper/019:15:150
27374993711,24cyclictest0-21swapper/022:45:230
11222375,13sleep00-21swapper/020:37:590
320012365,13sleep10-21swapper/119:16:291
30372365,13sleep20-21swapper/220:40:302
27377993619,15cyclictest0-21swapper/321:45:343
27377993619,14cyclictest0-21swapper/300:30:233
2737699366,18cyclictest0-21swapper/223:10:162
27375993615,19cyclictest0-21swapper/121:56:591
27375993614,20cyclictest0-21swapper/122:59:131
27375993614,20cyclictest0-21swapper/122:59:131
27375993614,20cyclictest0-21swapper/122:40:251
27375993614,20cyclictest0-21swapper/121:40:211
2737499369,17cyclictest0-21swapper/019:56:550
27374993615,19cyclictest0-21swapper/000:20:220
27374993614,19cyclictest0-21swapper/023:30:270
27374993613,20cyclictest0-21swapper/022:26:380
27374993610,17cyclictest0-21swapper/019:21:240
272812365,12sleep20-21swapper/220:23:462
228762365,13sleep20-21swapper/220:11:472
208622365,13sleep00-21swapper/020:07:560
18502365,12sleep20-21swapper/219:23:272
17402365,13sleep10-21swapper/119:22:101
138122365,13sleep00-21swapper/021:07:500
94482354,13sleep10-21swapper/120:56:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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