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2026-08-26 - 00:24
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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 Tue Aug 25, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6648212062,53sleep30-21swapper/307:06:453
3023521190,1sleep328662-21stress10:25:183
3023521190,1sleep328662-21stress10:25:173
5435211151,24sleep10-21swapper/107:05:151
691528749,32sleep00-21swapper/007:09:560
667828762,20sleep20-21swapper/207:07:052
93922590,1sleep028662-21stress09:36:480
7025994828,18cyclictest0-21swapper/309:25:223
7025994632,12cyclictest0-21swapper/311:12:223
7025994529,13cyclictest0-21swapper/310:44:293
7023994527,16cyclictest0-21swapper/111:37:471
7025994428,13cyclictest0-21swapper/311:05:563
7025994428,13cyclictest0-21swapper/310:32:523
7025994425,16cyclictest0-21swapper/309:31:283
7023994426,16cyclictest0-21swapper/112:25:191
7025994329,12cyclictest0-21swapper/309:50:123
7025994329,12cyclictest0-21swapper/309:50:123
7025994327,14cyclictest0-21swapper/310:00:153
7025994326,15cyclictest0-21swapper/312:25:073
7025994226,13cyclictest0-21swapper/309:14:243
7025994226,13cyclictest0-21swapper/309:14:243
7025994225,14cyclictest0-21swapper/310:20:153
7025994223,17cyclictest0-21swapper/311:41:333
702499427,16cyclictest0-21swapper/212:07:522
702399426,25cyclictest0-21swapper/109:15:351
702399426,25cyclictest0-21swapper/109:15:351
7023994211,18cyclictest28662-21stress10:00:121
7023994210,22cyclictest0-21swapper/107:45:171
7025994125,14cyclictest0-21swapper/310:57:313
7025994125,13cyclictest0-21swapper/312:02:003
702399417,24cyclictest0-21swapper/111:01:461
7023994127,12cyclictest0-21swapper/110:15:251
7023994125,14cyclictest0-21swapper/112:13:081
7023994125,14cyclictest0-21swapper/112:13:081
154862410,1sleep028664-21stress12:16:290
7025994025,13cyclictest0-21swapper/310:50:293
7025994025,13cyclictest0-21swapper/309:35:293
7025994024,13cyclictest0-21swapper/310:14:043
7025994023,15cyclictest0-21swapper/310:05:223
702399407,24cyclictest0-21swapper/112:30:241
7023994026,12cyclictest0-21swapper/111:15:141
7023994024,13cyclictest0-21swapper/112:00:001
7023994012,16cyclictest28664-21stress10:40:171
307782405,11sleep20-21swapper/208:00:152
7025993924,12cyclictest0-21swapper/312:21:033
702399398,28cyclictest0-21swapper/110:45:251
7023993922,15cyclictest0-21swapper/110:32:341
7023993920,16cyclictest0-21swapper/112:09:371
7023993914,14cyclictest28664-21stress11:30:161
7023993913,13cyclictest19615-21uniq07:35:141
7022993911,22cyclictest0-21swapper/008:55:230
7025993828,8cyclictest28664-21stress12:30:353
7025993824,12cyclictest0-21swapper/311:25:153
7025993824,12cyclictest0-21swapper/310:36:563
7025993824,12cyclictest0-21swapper/310:36:563
7024993818,17cyclictest0-21swapper/210:16:382
702399388,28cyclictest0-21swapper/110:09:221
702399388,27cyclictest0-21swapper/109:45:291
702399388,27cyclictest0-21swapper/109:45:291
702399388,27cyclictest0-21swapper/109:41:591
702399387,28cyclictest0-21swapper/112:20:371
702399387,25cyclictest0-21swapper/107:10:581
7023993824,12cyclictest0-21swapper/109:10:231
7023993824,12cyclictest0-21swapper/109:10:231
7023993814,13cyclictest0-21swapper/108:20:151
7022993811,21cyclictest0-21swapper/007:46:050
7022993811,21cyclictest0-21swapper/007:35:040
318242385,13sleep00-21swapper/008:01:370
7025993723,12cyclictest0-21swapper/311:15:213
7025993717,17cyclictest0-21swapper/311:00:163
7024993715,19cyclictest0-21swapper/211:32:222
7024993711,23cyclictest0-21swapper/209:44:002
702399379,25cyclictest0-21swapper/110:37:361
702399379,25cyclictest0-21swapper/110:37:361
702399375,30cyclictest0-21swapper/110:10:211
7023993719,17cyclictest0-21swapper/111:20:391
7023993713,14cyclictest28664-21stress12:20:011
7023993710,17cyclictest28005-21wget07:55:121
7023993710,15cyclictest28664-21stress09:53:551
7023993710,15cyclictest28664-21stress09:53:551
7022993716,15cyclictest0-21swapper/008:40:060
7022993710,21cyclictest0-21swapper/007:55:370
702599369,25cyclictest0-21swapper/310:45:133
702599367,27cyclictest0-21swapper/307:58:183
702399369,19cyclictest0-21swapper/108:05:211
702399369,15cyclictest28664-21stress11:50:351
702399369,15cyclictest28664-21stress11:50:341
702399367,26cyclictest0-21swapper/112:00:151
702399365,20cyclictest0-21swapper/107:15:231
702299367,22cyclictest0-21swapper/007:34:240
702299365,25cyclictest0-21swapper/008:05:020
7022993610,21cyclictest0-21swapper/008:50:060
129912365,13sleep00-21swapper/008:33:450
702599358,25cyclictest0-21swapper/308:45:083
702599357,26cyclictest0-21swapper/308:30:153
7025993521,12cyclictest26700-21/usr/sbin/munin09:05:223
7025993521,12cyclictest0-21swapper/309:24:133
7025993521,12cyclictest0-21swapper/309:24:133
7025993519,14cyclictest0-21swapper/308:27:393
702399357,12cyclictest28662-21stress11:25:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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