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2026-06-09 - 14:46
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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 100 highest latencies:
System rack7slot1.osadl.org (updated Tue Jun 09, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2784821400,1sleep36056-21stress11:14:063
17417211455,53sleep20-21swapper/207:07:502
1751929769,23sleep30-21swapper/307:08:593
1727928756,26sleep00-21swapper/007:06:110
1743428556,24sleep10-21swapper/107:08:001
251912420,1sleep06054-21stress09:51:050
1771399413,35cyclictest6054-21stress11:45:273
17713994118,20cyclictest0-21swapper/310:50:403
17713994115,23cyclictest0-21swapper/310:20:513
295282405,14sleep00-21swapper/008:49:480
1771399403,34cyclictest6056-21stress11:17:073
1771399403,34cyclictest6056-21stress11:17:073
17713994018,19cyclictest0-21swapper/309:30:263
1771199409,28cyclictest0-21swapper/112:03:251
17711994015,22cyclictest0-21swapper/111:25:471
17713993917,20cyclictest0-21swapper/311:31:503
17713993916,21cyclictest0-21swapper/311:50:343
17713993915,21cyclictest0-21swapper/310:10:593
17711993913,24cyclictest0-21swapper/109:50:161
17711993911,26cyclictest0-21swapper/111:00:381
17711993911,26cyclictest0-21swapper/110:58:351
229872385,8sleep00-21swapper/008:34:180
1771399383,33cyclictest6054-21stress12:34:033
1771399383,33cyclictest6054-21stress12:34:023
1771399383,33cyclictest6054-21stress12:00:423
1771399383,20cyclictest6056-21stress09:18:203
17713993815,21cyclictest0-21swapper/309:14:063
1771199385,24cyclictest0-21swapper/109:11:251
17711993811,24cyclictest0-21swapper/109:45:391
17711993810,25cyclictest0-21swapper/109:35:181
17710993810,22cyclictest0-21swapper/008:20:100
322932370,1sleep06054-21stress12:36:250
1771399373,31cyclictest6054-21stress10:33:443
1771399373,31cyclictest6054-21stress09:20:193
1771399373,31cyclictest30663-21/usr/sbin/munin12:35:183
1771399373,31cyclictest25286-21mailstats12:20:313
1771399373,31cyclictest22491-21cut12:15:173
1771399373,31cyclictest13298-21hwlatdetect09:25:203
1771399373,31cyclictest13298-21hwlatdetect09:25:203
1771399372,32cyclictest6056-21stress11:20:273
1771399372,32cyclictest6054-21stress10:55:043
17713993715,20cyclictest0-21swapper/309:53:513
17713993714,21cyclictest0-21swapper/311:25:193
17713993714,20cyclictest0-21swapper/309:55:223
17713993713,21cyclictest0-21swapper/310:20:003
17711993714,21cyclictest0-21swapper/112:25:051
17711993714,21cyclictest0-21swapper/112:25:041
17710993715,16cyclictest0-21swapper/008:50:220
10192375,11sleep00-21swapper/007:42:250
32182365,13sleep20-21swapper/207:46:592
293802365,14sleep20-21swapper/208:48:032
249062365,13sleep00-21swapper/007:24:480
1771399363,30cyclictest6054-21stress12:10:173
1771399363,30cyclictest6054-21stress09:39:393
1771399363,30cyclictest26299-21aten2_r7power_c12:25:113
1771399363,30cyclictest26299-21aten2_r7power_c12:25:113
1771399363,30cyclictest23053-21/usr/sbin/munin11:00:303
1771399362,31cyclictest6056-21stress11:09:073
17713993616,18cyclictest0-21swapper/310:30:023
17713993615,19cyclictest0-21swapper/310:05:263
17713993615,19cyclictest0-21swapper/310:05:253
17713993614,19cyclictest0-21swapper/310:35:303
17711993615,18cyclictest0-21swapper/110:05:111
17711993615,18cyclictest0-21swapper/110:05:111
17711993612,22cyclictest0-21swapper/112:05:101
1771099369,20cyclictest0-21swapper/009:15:320
267512355,13sleep00-21swapper/007:25:560
248072355,13sleep10-21swapper/107:23:371
1771399357,25cyclictest0-21swapper/307:13:283
1771399353,29cyclictest6056-21stress11:35:103
1771399353,29cyclictest30841-21grep08:50:193
1771399353,29cyclictest14541-21taskset10:40:493
1771399353,29cyclictest14541-21taskset10:40:493
1771399352,30cyclictest6056-21stress12:05:133
1771399352,30cyclictest0-21swapper/308:25:163
17713993515,18cyclictest0-21swapper/311:40:303
17712993512,20cyclictest0-21swapper/212:23:272
1771199355,20cyclictest0-21swapper/112:20:181
1771099357,22cyclictest0-21swapper/009:05:310
1771099357,22cyclictest0-21swapper/007:47:040
17710993515,17cyclictest0-21swapper/011:12:360
17710993510,19cyclictest0-21swapper/008:02:060
1771399343,28cyclictest6933-21ntpdc07:55:203
1771399342,29cyclictest27717-21wget08:45:123
17713993414,18cyclictest0-21swapper/309:40:163
17711993414,18cyclictest0-21swapper/112:30:231
17711993414,18cyclictest0-21swapper/112:30:231
1771099349,20cyclictest0-21swapper/008:55:350
1771099349,20cyclictest0-21swapper/008:05:340
1771099348,21cyclictest0-21swapper/008:15:350
17710993420,5cyclictest0-21swapper/010:05:370
17710993420,5cyclictest0-21swapper/010:05:360
270072335,13sleep10-21swapper/107:29:111
250032335,13sleep00-21swapper/008:37:170
1771399333,27cyclictest5311-21awk09:05:223
1771399333,27cyclictest29392-21/usr/sbin/munin10:00:343
1771399333,27cyclictest15159-21cron12:00:003
1771399333,27cyclictest15159-21cron11:59:593
17713993314,18cyclictest0-21swapper/308:15:133
17712993317,13cyclictest0-21swapper/211:03:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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