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2026-04-27 - 09:53
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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 Mon Apr 27, 2026 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1801521210,1sleep27361-21stress21:34:392
250121190,1sleep07361-21stress23:28:100
19454211756,55sleep20-21swapper/219:09:262
19455211454,20sleep30-21swapper/319:09:273
19354211453,56sleep10-21swapper/119:08:081
19231211351,57sleep00-21swapper/019:06:310
232772600,2sleep17361-21stress23:00:241
1960499598,48cyclictest0-21swapper/300:01:313
19604995811,28cyclictest0-21swapper/300:28:043
19604995710,26cyclictest0-21swapper/321:57:093
1960499569,44cyclictest0-21swapper/300:30:423
1960499569,44cyclictest0-21swapper/300:30:423
1960499568,45cyclictest0-21swapper/322:30:323
1960499538,26cyclictest0-21swapper/300:20:273
19604995213,16cyclictest0-21swapper/322:20:353
19604995112,17cyclictest0-21swapper/321:25:243
19604995013,15cyclictest0-21swapper/323:50:333
19604994910,20cyclictest0-21swapper/323:05:213
1960499486,22cyclictest0-21swapper/321:45:233
19604994714,15cyclictest0-21swapper/323:18:373
1960499466,20cyclictest0-21swapper/322:00:193
19601994415,18cyclictest0-21swapper/023:00:220
19604994310,30cyclictest0-21swapper/300:35:163
19601994310,30cyclictest0-21swapper/021:47:480
19601994211,28cyclictest0-21swapper/023:48:100
19601994210,29cyclictest0-21swapper/023:13:200
307232410,1sleep07359-21stress22:02:490
19603994111,27cyclictest0-21swapper/200:36:592
19601994113,26cyclictest0-21swapper/022:35:120
1960399399,27cyclictest0-21swapper/221:10:082
1960199399,27cyclictest0-21swapper/023:30:460
1960199399,27cyclictest0-21swapper/023:30:460
19601993912,24cyclictest0-21swapper/021:21:270
5302380,1sleep07361-21stress22:09:080
5302380,1sleep07361-21stress22:09:080
284812385,14sleep00-21swapper/020:40:340
200262385,13sleep20-21swapper/220:22:162
19603993811,24cyclictest0-21swapper/222:58:462
19603993810,25cyclictest0-21swapper/200:31:102
19603993810,25cyclictest0-21swapper/200:31:102
19601993816,19cyclictest0-21swapper/022:42:090
19601993815,20cyclictest0-21swapper/022:26:060
19601993814,21cyclictest0-21swapper/022:48:360
19601993814,21cyclictest0-21swapper/022:48:360
19601993813,22cyclictest0-21swapper/022:34:060
135472385,13sleep20-21swapper/220:07:082
130542385,14sleep10-21swapper/120:05:231
4362375,13sleep20-21swapper/219:35:482
216922375,13sleep00-21swapper/019:14:490
19603993715,19cyclictest0-21swapper/223:00:062
19603993714,20cyclictest0-21swapper/221:55:122
19603993713,22cyclictest0-21swapper/221:25:192
19603993711,23cyclictest0-21swapper/200:10:212
19602993714,21cyclictest0-21swapper/123:51:091
19601993717,17cyclictest0-21swapper/000:35:340
19601993716,18cyclictest0-21swapper/023:37:340
19601993713,22cyclictest0-21swapper/000:20:360
49892365,11sleep00-21swapper/019:47:490
306452365,13sleep00-21swapper/020:45:360
286842365,12sleep10-21swapper/120:43:081
267042365,13sleep00-21swapper/020:39:530
265552364,13sleep10-21swapper/119:22:121
201742365,13sleep10-21swapper/120:24:101
19603993611,22cyclictest0-21swapper/222:40:322
19603993611,22cyclictest0-21swapper/222:15:342
19603993611,22cyclictest0-21swapper/222:10:032
19603993611,22cyclictest0-21swapper/222:10:022
19603993610,23cyclictest0-21swapper/223:20:342
1960299366,19cyclictest0-21swapper/100:21:031
19602993611,22cyclictest0-21swapper/123:35:501
19601993616,17cyclictest0-21swapper/022:50:070
19601993616,17cyclictest0-21swapper/022:50:070
19601993615,19cyclictest0-21swapper/000:25:040
19601993614,12cyclictest0-21swapper/021:10:210
19601993612,21cyclictest0-21swapper/023:15:310
179542365,13sleep20-21swapper/220:18:032
309042354,13sleep10-21swapper/120:48:491
263732355,11sleep10-21swapper/120:35:461
245852355,13sleep20-21swapper/219:19:282
223262355,13sleep00-21swapper/020:28:510
216782355,12sleep10-21swapper/119:14:381
214052353,13sleep20-21swapper/219:11:142
19603993516,17cyclictest0-21swapper/222:25:212
19603993511,22cyclictest0-21swapper/221:15:262
1960299356,19cyclictest0-21swapper/123:13:201
19602993516,16cyclictest0-21swapper/100:12:121
19602993510,22cyclictest0-21swapper/122:40:141
19601993515,17cyclictest0-21swapper/023:50:230
19601993515,17cyclictest0-21swapper/021:50:060
19601993513,19cyclictest0-21swapper/023:24:130
19601993511,18cyclictest0-21swapper/021:05:050
19601993511,18cyclictest0-21swapper/021:05:050
19601993510,22cyclictest0-21swapper/022:55:200
19601993510,22cyclictest0-21swapper/022:10:140
19601993510,22cyclictest0-21swapper/022:10:140
6222345,11sleep00-21swapper/019:38:030
3602345,10sleep00-21swapper/020:50:410
319312345,13sleep20-21swapper/220:50:192
301382345,11sleep10-21swapper/119:30:221
27592345,10sleep00-21swapper/019:42:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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