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2026-04-11 - 00:01
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot6.osadl.org (updated Fri Apr 10, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1102521810,5sleep02948799cyclictest11:08:470
1477921790,3sleep02948799cyclictest09:56:200
1068911760,5ptp4l401ktimersoftd/308:11:243
167421610,6sleep12949399cyclictest11:31:241
2016721460,4sleep22949999cyclictest11:17:162
138042730,2sleep10-21swapper/113:21:411
223242690,2sleep20-21swapper/209:06:082
134962620,5sleep233-21ksoftirqd/211:44:102
281142610,3sleep30-21swapper/311:58:523
319542590,5sleep031957-21latency_hist08:20:530
240502590,2sleep20-21swapper/211:21:172
2950699589,14cyclictest14176-21/usr/sbin/munin11:11:223
29506995810,14cyclictest5146-21grep11:36:073
274262560,1sleep00-21swapper/011:25:570
263172560,1sleep30-21swapper/313:36:003
29506995410,19cyclictest19252-21ssh11:16:193
293732544,37sleep10-21swapper/108:15:411
291542503,34sleep20-21swapper/208:12:522
2950699497,18cyclictest11446-21ssh12:46:263
29487994939,4cyclictest9-21ksoftirqd/011:56:080
2949999434,8cyclictest0-21swapper/210:41:072
2949999423,8cyclictest22610-21diskmemload13:11:092
29506994112,16cyclictest368-21/usr/sbin/munin10:26:243
10432410,1sleep20-21swapper/210:58:572
29493993932,4cyclictest25-21ksoftirqd/111:16:071
106891390,1ptp4l401ktimersoftd/310:56:213
106891390,1ptp4l401ktimersoftd/310:45:373
29499993810,3cyclictest33802sh10:28:092
106891380,1ptp4l401ktimersoftd/313:45:043
106891380,1ptp4l401ktimersoftd/313:08:413
2950699377,11cyclictest26908-21ssh10:19:513
29506993723,10cyclictest7523-21sed11:05:573
29499993717,4cyclictest33-21ksoftirqd/208:17:422
132082374,8sleep09-21ksoftirqd/010:38:080
106891370,1ptp4l401ktimersoftd/313:37:473
106891370,1ptp4l401ktimersoftd/313:20:183
106891370,1ptp4l401ktimersoftd/313:02:303
106891370,1ptp4l401ktimersoftd/312:57:233
106891370,1ptp4l401ktimersoftd/312:40:343
106891370,1ptp4l401ktimersoftd/312:26:293
106891370,1ptp4l401ktimersoftd/312:17:383
106891370,1ptp4l401ktimersoftd/312:11:003
106891370,1ptp4l401ktimersoftd/312:07:223
106891370,1ptp4l401ktimersoftd/311:34:253
106891370,1ptp4l401ktimersoftd/310:53:183
106891370,1ptp4l401ktimersoftd/310:37:173
106891370,1ptp4l401ktimersoftd/310:34:273
106891370,1ptp4l401ktimersoftd/309:51:113
2949999363,9cyclictest4828-21apt-get12:41:112
29493993629,4cyclictest25-21ksoftirqd/109:26:061
29493993629,4cyclictest25-21ksoftirqd/109:26:061
106891360,1ptp4l401ktimersoftd/313:11:503
106891360,1ptp4l401ktimersoftd/312:51:373
106891360,1ptp4l401ktimersoftd/312:51:373
106891360,1ptp4l401ktimersoftd/312:42:073
106891360,1ptp4l401ktimersoftd/312:33:333
106891360,1ptp4l401ktimersoftd/312:02:043
106891360,1ptp4l401ktimersoftd/311:52:203
106891360,1ptp4l401ktimersoftd/311:26:343
106891360,1ptp4l401ktimersoftd/311:22:353
106891360,1ptp4l401ktimersoftd/310:47:453
106891360,1ptp4l401ktimersoftd/310:24:153
106891360,0ptp4l401ktimersoftd/311:47:513
29506993515,17cyclictest29612-21fschecks_time09:21:103
29506993515,17cyclictest29612-21fschecks_time09:21:103
29506993510,9cyclictest11204-21switchtime08:41:203
29312350,3sleep10-21swapper/109:31:201
149112350,4sleep02948799cyclictest13:23:330
106891350,1ptp4l401ktimersoftd/313:23:033
106891350,0ptp4l401ktimersoftd/308:53:053
2950699346,11cyclictest0-21swapper/311:41:033
29493993427,4cyclictest25-21ksoftirqd/109:11:041
29487993428,4cyclictest0-21swapper/008:15:530
106891340,1ptp4l401ktimersoftd/312:22:083
29506993312,18cyclictest19266-21sed09:00:533
29506993311,18cyclictest4261-21fschecks_count09:36:093
29493993327,3cyclictest25-21ksoftirqd/112:10:581
29493993327,3cyclictest25-21ksoftirqd/110:20:561
29493993326,4cyclictest25-21ksoftirqd/109:46:051
29493993227,3cyclictest25-21ksoftirqd/111:40:571
29493993223,3cyclictest25-21ksoftirqd/111:06:251
29506993116,10cyclictest0-21swapper/309:16:063
29506993115,11cyclictest0-21swapper/310:01:073
29506993112,16cyclictest12617-21cut08:46:093
29493993126,3cyclictest25-21ksoftirqd/113:11:111
29493993125,4cyclictest25-21ksoftirqd/110:46:111
29493993125,3cyclictest25-21ksoftirqd/113:26:101
29493993125,3cyclictest25-21ksoftirqd/112:05:581
29493993125,3cyclictest25-21ksoftirqd/111:55:581
29493993124,4cyclictest25-21ksoftirqd/113:05:591
106891310,0ptp4l401ktimersoftd/313:29:113
29493993025,3cyclictest25-21ksoftirqd/112:46:111
29493993024,4cyclictest47050irq/101-ens3-Tx13:00:591
29493993022,3cyclictest25-21ksoftirqd/108:41:061
37742290,2sleep20-21swapper/209:35:552
29506992915,10cyclictest861-21grep09:26:243
29506992915,10cyclictest861-21grep09:26:243
29506992911,14cyclictest0-21swapper/308:31:133
29493992923,3cyclictest25-21ksoftirqd/112:00:581
29493992923,3cyclictest25-21ksoftirqd/110:56:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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