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2026-06-17 - 10:12
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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 100 highest latencies:
System rack7slot1.osadl.org (updated Wed Jun 17, 2026 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2163021340,1sleep112488-21stress23:59:301
23813212258,58sleep30-21swapper/319:08:393
23773211352,21sleep20-21swapper/219:08:102
23922211252,55sleep00-21swapper/019:09:570
2806621110,1sleep312486-21stress00:13:423
2357129050,35sleep10-21swapper/119:05:401
2402499437,33cyclictest0-21swapper/221:47:572
24022994312,28cyclictest0-21swapper/022:01:430
24022994310,30cyclictest0-21swapper/023:27:130
24022994310,30cyclictest0-21swapper/023:27:120
2402499429,30cyclictest0-21swapper/200:02:462
2402499429,30cyclictest0-21swapper/200:02:462
24024994212,27cyclictest0-21swapper/221:25:232
24022994214,25cyclictest0-21swapper/021:19:310
24024994111,27cyclictest0-21swapper/200:05:102
24022994116,22cyclictest0-21swapper/021:20:070
24022994115,23cyclictest0-21swapper/022:34:320
2402499409,28cyclictest0-21swapper/200:35:232
24024994010,27cyclictest0-21swapper/223:05:072
24022994015,9cyclictest0-21swapper/022:20:550
24022994015,22cyclictest0-21swapper/000:17:590
24022994011,26cyclictest0-21swapper/022:52:230
24022994011,26cyclictest0-21swapper/022:52:230
24024993915,21cyclictest0-21swapper/200:20:172
24024993914,22cyclictest0-21swapper/223:50:292
24024993910,26cyclictest0-21swapper/221:50:112
24022993915,21cyclictest0-21swapper/023:56:440
24022993911,25cyclictest0-21swapper/023:15:200
24022993911,25cyclictest0-21swapper/022:48:220
24022993911,25cyclictest0-21swapper/022:48:220
141462395,13sleep20-21swapper/219:59:112
34562380,3sleep312490-21iperf23:15:283
2402499387,28cyclictest0-21swapper/200:15:282
2402499386,29cyclictest0-21swapper/222:29:402
24024993814,21cyclictest0-21swapper/200:25:142
24022993819,12cyclictest0-21swapper/000:11:410
24022993815,21cyclictest0-21swapper/021:35:390
24022993815,20cyclictest0-21swapper/023:45:080
162092385,13sleep20-21swapper/220:02:322
80052375,13sleep30-21swapper/320:58:583
259602375,13sleep10-21swapper/119:12:381
24024993711,23cyclictest0-21swapper/222:10:062
24022993716,18cyclictest0-21swapper/022:55:330
24022993710,24cyclictest0-21swapper/022:15:240
24022993710,24cyclictest0-21swapper/022:06:180
226182375,12sleep00-21swapper/020:16:130
206652375,13sleep30-21swapper/320:14:083
160772375,13sleep30-21swapper/320:00:573
122052374,13sleep20-21swapper/221:07:242
122052374,13sleep20-21swapper/221:07:232
101602375,13sleep10-21swapper/119:50:081
100002375,13sleep20-21swapper/221:01:512
54412364,13sleep20-21swapper/219:38:582
2402299367,26cyclictest0-21swapper/021:30:410
24022993614,20cyclictest0-21swapper/000:30:330
24022993611,23cyclictest0-21swapper/021:43:100
24022993611,23cyclictest0-21swapper/021:43:100
24022993611,22cyclictest0-21swapper/023:13:530
24022993611,22cyclictest0-21swapper/000:20:350
206622365,13sleep00-21swapper/020:14:050
205572368,10sleep20-21swapper/220:12:422
161472365,13sleep10-21swapper/120:01:471
11752364,13sleep20-21swapper/220:41:212
101522364,13sleep10-21swapper/121:03:461
76602355,13sleep10-21swapper/119:44:061
76602355,13sleep10-21swapper/119:44:051
315102355,12sleep30-21swapper/320:37:583
314492355,12sleep00-21swapper/020:37:110
292822355,10sleep20-21swapper/220:32:562
24024993511,21cyclictest0-21swapper/200:10:272
24024993510,23cyclictest0-21swapper/221:15:172
2402399356,16cyclictest0-21swapper/123:15:201
24023993512,20cyclictest0-21swapper/123:51:591
96422345,10sleep00-21swapper/019:46:540
35782345,10sleep10-21swapper/120:48:221
33182344,12sleep00-21swapper/019:34:390
259072344,12sleep00-21swapper/019:11:570
250382344,12sleep30-21swapper/320:23:583
24025993416,15cyclictest0-21swapper/322:40:133
24025993416,15cyclictest0-21swapper/321:51:153
2402499347,24cyclictest0-21swapper/221:35:022
2402399345,27cyclictest0-21swapper/122:01:141
2402399345,26cyclictest0-21swapper/122:20:411
24023993416,15cyclictest0-21swapper/123:43:111
24023993415,16cyclictest0-21swapper/123:01:481
24023993410,18cyclictest0-21swapper/121:05:381
24023993410,18cyclictest0-21swapper/121:05:381
24022993416,15cyclictest0-21swapper/023:30:300
24022993415,16cyclictest0-21swapper/021:29:340
24022993414,18cyclictest0-21swapper/023:35:200
24022993414,18cyclictest0-21swapper/023:35:200
24022993414,17cyclictest0-21swapper/022:35:140
24022993413,18cyclictest0-21swapper/021:50:190
24022993411,21cyclictest0-21swapper/021:06:110
24022993411,21cyclictest0-21swapper/021:06:110
182942345,10sleep30-21swapper/320:06:133
161032345,12sleep00-21swapper/020:01:140
96132335,10sleep30-21swapper/319:46:333
69512334,13sleep00-21swapper/020:55:190
57832334,12sleep20-21swapper/220:53:292
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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