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2026-03-27 - 02:53
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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 Fri Mar 27, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12393212162,20sleep30-21swapper/319:09:143
12393212162,20sleep30-21swapper/319:09:143
12395210950,54sleep00-21swapper/019:09:160
12395210950,54sleep00-21swapper/019:09:160
12324210949,55sleep10-21swapper/119:08:191
12324210949,55sleep10-21swapper/119:08:191
1232028757,25sleep20-21swapper/219:08:172
1232028757,25sleep20-21swapper/219:08:162
239042810,3sleep032224-21stress22:25:220
245312630,1sleep032224-21stress23:43:000
12551995111,22cyclictest0-21swapper/122:35:151
12551995111,22cyclictest0-21swapper/122:35:141
12551994911,21cyclictest0-21swapper/123:25:131
12551994711,21cyclictest0-21swapper/123:49:051
12551994711,21cyclictest0-21swapper/123:49:041
12551994711,21cyclictest0-21swapper/122:20:241
12551994711,21cyclictest0-21swapper/121:27:041
12551994612,20cyclictest0-21swapper/100:09:111
12551994611,25cyclictest0-21swapper/123:43:311
12551994610,21cyclictest0-21swapper/123:30:281
12551994610,21cyclictest0-21swapper/121:35:311
1255199451,34cyclictest32224-21stress00:20:231
1255199451,31cyclictest32227-21stress22:29:591
12551994510,21cyclictest0-21swapper/121:10:251
12551994510,21cyclictest0-21swapper/100:15:011
12551994410,22cyclictest0-21swapper/123:08:341
12551994410,20cyclictest0-21swapper/122:05:291
1255199434,29cyclictest0-21swapper/122:40:341
12551994311,17cyclictest0-21swapper/123:50:221
12551994311,17cyclictest0-21swapper/123:50:211
12551994210,23cyclictest0-21swapper/122:45:301
12551994210,20cyclictest0-21swapper/121:15:121
12551994210,16cyclictest0-21swapper/121:41:161
1255699413,4cyclictest1899-21runrttasks21:01:253
1255199414,22cyclictest32227-21stress23:15:301
1255199411,23cyclictest32224-21stress21:58:091
1255199410,25cyclictest32227-21stress21:20:301
1255199407,27cyclictest0-21swapper/119:56:481
1255199403,21cyclictest32224-21stress22:18:561
12551994017,20cyclictest0-21swapper/122:59:071
12551994014,23cyclictest0-21swapper/123:38:411
1255199401,23cyclictest31439-21grep00:00:121
1255199400,25cyclictest32227-21stress23:59:191
12550994016,22cyclictest0-21swapper/022:48:160
1255699396,30cyclictest32227-21stress00:21:333
1255699395,31cyclictest32227-21stress00:15:293
1255699395,31cyclictest32227-21stress00:15:283
1255699395,31cyclictest32224-21stress22:23:183
12556993921,16cyclictest0-21swapper/322:35:323
12556993921,16cyclictest0-21swapper/322:35:323
1255199393,21cyclictest32227-21stress22:33:391
1255199391,23cyclictest32224-21stress21:48:581
12550993915,21cyclictest0-21swapper/023:29:390
217632385,16sleep00-21swapper/019:29:200
148902385,16sleep00-21swapper/020:27:420
1255699386,29cyclictest32224-21stress22:58:233
1255699385,30cyclictest32224-21stress21:41:083
1255699383,32cyclictest32227-21stress00:39:203
1255699383,32cyclictest24618-21irqstats20:50:173
1255699383,17cyclictest0-21swapper/320:20:303
12556993818,18cyclictest0-21swapper/322:40:123
1255199385,17cyclictest0-21swapper/120:10:221
1255199382,23cyclictest12989-21tr19:10:121
1255199382,20cyclictest147-21usb-storage21:30:211
12551993813,22cyclictest0-21swapper/123:11:181
1255199381,25cyclictest28673-21ls19:45:131
1255199381,23cyclictest13845-21sed00:35:021
12550993817,18cyclictest0-21swapper/022:43:280
12550993813,22cyclictest0-21swapper/021:15:090
63202375,15sleep00-21swapper/020:07:290
193362375,15sleep20-21swapper/219:20:522
1255699377,28cyclictest32229-21iperf00:10:163
1255699376,28cyclictest32227-21stress22:53:343
1255699376,28cyclictest32227-21stress21:59:363
1255699374,17cyclictest0-21swapper/320:59:423
1255699373,4cyclictest32224-21stress23:55:353
1255699373,31cyclictest32227-21stress21:49:413
1255699373,31cyclictest32224-21stress22:25:033
1255699373,31cyclictest32224-21stress21:11:013
1255699373,17cyclictest0-21swapper/320:46:123
1255699373,17cyclictest0-21swapper/320:14:583
1255699372,16cyclictest0-21swapper/320:18:353
12556993719,16cyclictest0-21swapper/321:20:163
12556993719,16cyclictest0-21swapper/300:34:153
12556993719,16cyclictest0-21swapper/300:05:213
12551993714,21cyclictest0-21swapper/123:03:351
1255199371,24cyclictest28218-21cron19:45:011
12551993710,24cyclictest0-21swapper/121:51:151
12550993712,22cyclictest0-21swapper/000:17:040
12550993712,22cyclictest0-21swapper/000:17:040
281322365,14sleep00-21swapper/021:00:020
19002365,11sleep00-21swapper/019:56:310
126832365,14sleep20-21swapper/220:21:522
1255699368,26cyclictest0-21swapper/323:00:323
1255699366,27cyclictest32224-21stress21:18:013
1255699366,27cyclictest0-21swapper/321:30:303
1255699365,29cyclictest0-21swapper/319:32:153
1255699365,28cyclictest32229-21iperf23:45:183
1255699365,28cyclictest32229-21iperf23:45:183
1255699365,28cyclictest32227-21stress21:25:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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