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2025-12-08 - 20:39
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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 rackdslot3.osadl.org (updated Mon Dec 08, 2025 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8682205171,22sleep10-21swapper/107:07:081
137191204169,23phc2sys0-21swapper/307:06:143
13002203170,22sleep20-21swapper/207:09:182
8102197164,22sleep00-21swapper/007:06:230
33621660,5sleep2167299cyclictest09:20:202
136991730,1ptp4l391rcuc/310:10:243
136991730,1ptp4l391rcuc/310:10:243
136991550,1ptp4l401ktimersoftd/309:31:483
48022530,2sleep30-21swapper/308:20:273
1671995143,5cyclictest31563-21sh11:35:001
136991480,0ptp4l401ktimersoftd/312:05:003
136991470,38ptp4l0-21swapper/307:10:013
136991460,1ptp4l401ktimersoftd/309:39:573
136991450,1ptp4l401ktimersoftd/312:01:483
44832440,1sleep00-21swapper/007:15:130
136991430,1ptp4l401ktimersoftd/308:50:373
1672994237,3cyclictest33-21ksoftirqd/208:59:322
136991420,0ptp4l401ktimersoftd/311:31:443
136991420,0ptp4l401ktimersoftd/310:42:103
1670994136,3cyclictest28136-21cron08:05:000
136991410,0ptp4l401ktimersoftd/312:29:293
136991410,0ptp4l401ktimersoftd/308:45:153
1670994035,3cyclictest23207-21cron12:25:010
136991400,0ptp4l401ktimersoftd/310:30:533
1672993926,11cyclictest33-21ksoftirqd/212:04:592
136991380,0ptp4l401ktimersoftd/308:40:193
136991380,0ptp4l401ktimersoftd/308:40:193
1672993731,4cyclictest33-21ksoftirqd/211:02:412
1672993731,3cyclictest33-21ksoftirqd/211:10:002
1671993733,3cyclictest25-21ksoftirqd/111:40:011
1673993630,4cyclictest41-21ksoftirqd/309:40:473
1673993630,4cyclictest41-21ksoftirqd/309:40:473
1672993631,3cyclictest33-21ksoftirqd/211:00:002
1672993631,3cyclictest33-21ksoftirqd/208:10:002
1672993630,4cyclictest33-21ksoftirqd/211:53:432
1672993630,4cyclictest33-21ksoftirqd/211:25:002
1672993630,4cyclictest33-21ksoftirqd/208:29:332
1671993629,4cyclictest25-21ksoftirqd/107:35:131
1671993629,4cyclictest25-21ksoftirqd/107:19:551
263352351,3sleep1121rcu_preempt12:30:191
1673993530,3cyclictest41-21ksoftirqd/311:50:013
1673993529,4cyclictest41-21ksoftirqd/309:27:113
1673993529,4cyclictest41-21ksoftirqd/307:48:583
1673993529,4cyclictest41-21ksoftirqd/307:37:153
1672993530,3cyclictest33-21ksoftirqd/212:39:112
1672993530,3cyclictest33-21ksoftirqd/212:34:592
1672993529,4cyclictest33-21ksoftirqd/211:32:092
1672993529,4cyclictest33-21ksoftirqd/209:48:442
1672993529,4cyclictest33-21ksoftirqd/207:59:162
1671993529,4cyclictest25-21ksoftirqd/110:00:111
1671993529,4cyclictest25-21ksoftirqd/107:49:041
1671993529,4cyclictest25-21ksoftirqd/107:41:421
1670993531,2cyclictest2912-21sshd08:19:580
1673993429,3cyclictest41-21ksoftirqd/310:18:383
1673993428,4cyclictest41-21ksoftirqd/311:28:023
1672993428,4cyclictest33-21ksoftirqd/211:36:222
1672993428,4cyclictest33-21ksoftirqd/210:51:582
1672993428,4cyclictest33-21ksoftirqd/208:24:032
1671993430,2cyclictest17248-21cron11:04:591
1671993429,3cyclictest25-21ksoftirqd/107:25:121
1671993428,4cyclictest25-21ksoftirqd/112:22:431
1671993428,4cyclictest25-21ksoftirqd/110:21:401
1671993427,4cyclictest25-21ksoftirqd/109:30:001
1670993429,3cyclictest9-21ksoftirqd/011:05:520
1670993428,4cyclictest9-21ksoftirqd/012:36:060
1670993428,4cyclictest9-21ksoftirqd/011:48:250
1670993428,4cyclictest9-21ksoftirqd/011:39:010
1670993428,4cyclictest9-21ksoftirqd/008:07:280
1670993428,4cyclictest9-21ksoftirqd/007:14:490
136991340,0ptp4l401ktimersoftd/311:35:203
1673993327,4cyclictest41-21ksoftirqd/310:02:053
1673993327,4cyclictest41-21ksoftirqd/307:28:203
1673993326,5cyclictest41-21ksoftirqd/309:06:333
1672993328,3cyclictest33-21ksoftirqd/207:37:352
1672993327,4cyclictest33-21ksoftirqd/211:27:162
1672993327,4cyclictest33-21ksoftirqd/210:30:142
1672993327,4cyclictest33-21ksoftirqd/208:52:262
1672993327,4cyclictest33-21ksoftirqd/208:33:222
1672993327,4cyclictest33-21ksoftirqd/207:25:462
1672993327,4cyclictest33-21ksoftirqd/207:18:362
1672993327,4cyclictest33-21ksoftirqd/207:11:022
1671993327,4cyclictest25-21ksoftirqd/110:40:461
1671993327,4cyclictest25-21ksoftirqd/110:27:131
1671993327,4cyclictest25-21ksoftirqd/110:18:281
1671993327,4cyclictest25-21ksoftirqd/109:46:181
1671993327,4cyclictest25-21ksoftirqd/108:04:441
1671993327,4cyclictest25-21ksoftirqd/107:55:371
1671993327,4cyclictest25-21ksoftirqd/107:20:401
1670993327,4cyclictest9-21ksoftirqd/011:16:020
136991330,0ptp4l401ktimersoftd/310:45:203
1673993227,3cyclictest41-21ksoftirqd/307:56:333
1673993226,4cyclictest41-21ksoftirqd/310:23:023
1673993226,4cyclictest41-21ksoftirqd/309:54:463
1673993226,4cyclictest41-21ksoftirqd/309:03:203
1673993226,4cyclictest41-21ksoftirqd/307:52:573
1673993226,4cyclictest41-21ksoftirqd/307:33:463
1673993225,4cyclictest41-21ksoftirqd/307:41:483
1672993227,3cyclictest33-21ksoftirqd/211:40:092
1672993227,3cyclictest33-21ksoftirqd/209:51:572
1672993227,3cyclictest33-21ksoftirqd/207:31:302
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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