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2026-05-17 - 10:45
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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 Sun May 17, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
570021680,5sleep21663799cyclictest01:49:292
3225921580,5sleep31664299cyclictest21:06:223
396421520,4sleep01662899cyclictest22:21:300
3236321490,4sleep11663299cyclictest22:57:411
3236321490,4sleep11663299cyclictest22:57:411
1950121480,4sleep11663299cyclictest20:41:071
1068911200,8ptp4l11518-21kworker/3:020:35:423
145922900,3sleep20-21swapper/220:31:182
106891700,10ptp4l401ktimersoftd/300:02:173
106891660,9ptp4l401ktimersoftd/321:14:253
106891650,6ptp4l401ktimersoftd/323:21:023
15982630,3sleep31664299cyclictest00:06:163
203082600,1sleep20-21swapper/223:18:292
106891600,1ptp4l401ktimersoftd/322:49:573
106891580,1ptp4l401ktimersoftd/322:41:483
106891580,1ptp4l401ktimersoftd/301:53:173
106891560,1ptp4l401ktimersoftd/301:39:243
106891560,1ptp4l401ktimersoftd/300:33:153
314302550,3sleep1231rcuc/101:41:421
248532540,1sleep10-21swapper/123:22:541
163932524,36sleep10-21swapper/120:34:201
16632994911,26cyclictest7110-21seq22:30:221
1663299483,36cyclictest27174-21apt-get23:26:211
149072480,2sleep30-21swapper/321:36:253
106891480,1ptp4l401ktimersoftd/323:45:513
106891480,1ptp4l401ktimersoftd/300:39:583
13732470,2sleep10-21swapper/100:06:101
106891470,1ptp4l401ktimersoftd/301:01:423
106891460,1ptp4l401ktimersoftd/322:55:203
106891460,1ptp4l401ktimersoftd/322:55:203
316702450,1sleep30-21swapper/301:41:483
106891430,1ptp4l401ktimersoftd/301:19:213
147312400,1sleep30-21swapper/300:19:133
106891400,1ptp4l401ktimersoftd/322:16:253
106891400,1ptp4l401ktimersoftd/300:11:533
106891390,1ptp4l401ktimersoftd/323:22:563
106891390,1ptp4l401ktimersoftd/301:33:233
106891390,1ptp4l401ktimersoftd/300:45:153
106891390,1ptp4l401ktimersoftd/300:45:153
1663299382,29cyclictest24893-21apt-get01:36:231
16632993814,21cyclictest8982-21idleruntime-cro23:41:091
1663299380,5cyclictest21316-21ssh00:59:301
1663299380,5cyclictest21290-21fschecks_time21:51:221
106891380,1ptp4l401ktimersoftd/323:32:193
106891380,1ptp4l401ktimersoftd/302:00:553
106891380,1ptp4l401ktimersoftd/301:10:463
106891380,1ptp4l401ktimersoftd/300:59:513
106891380,1ptp4l401ktimersoftd/300:47:073
16632993717,17cyclictest12464-21cut00:16:301
1663299370,5cyclictest415-21ssh00:37:011
1663299370,4cyclictest6951-21/usr/sbin/munin21:21:211
1663299370,4cyclictest6449-21ssh01:50:471
1663299370,4cyclictest3191-21/usr/sbin/munin00:41:341
1663299370,4cyclictest3191-21/usr/sbin/munin00:41:341
1663299370,3cyclictest9535-21ssh00:13:371
1663299370,3cyclictest27383-21ssh23:58:371
1663299370,3cyclictest27180-21sed22:01:341
106891370,1ptp4l401ktimersoftd/323:57:073
106891370,1ptp4l401ktimersoftd/323:47:083
106891370,1ptp4l401ktimersoftd/322:58:173
106891370,1ptp4l401ktimersoftd/322:58:173
106891370,1ptp4l401ktimersoftd/302:05:073
106891370,1ptp4l401ktimersoftd/301:49:023
106891370,1ptp4l401ktimersoftd/301:21:223
106891370,1ptp4l401ktimersoftd/300:54:143
106891370,1ptp4l401ktimersoftd/300:29:183
106891370,1ptp4l401ktimersoftd/300:22:233
106891370,0ptp4l401ktimersoftd/323:52:103
106891370,0ptp4l401ktimersoftd/323:07:593
1663299362,4cyclictest19566-21apt-get23:51:241
16632993617,16cyclictest13001-21sh00:51:231
16632993613,20cyclictest12762-21sh23:11:261
1663299361,30cyclictest14911-21ssh22:41:211
1663299360,4cyclictest11382-21ssh01:21:381
1663299360,3cyclictest8227-21missed_timers01:51:351
1663299360,3cyclictest16759-21ssh01:26:551
106891360,1ptp4l401ktimersoftd/322:06:273
106891360,0ptp4l401ktimersoftd/323:38:003
106891360,0ptp4l401ktimersoftd/322:38:213
106891360,0ptp4l401ktimersoftd/301:30:183
16642993529,3cyclictest41-21ksoftirqd/320:41:053
1663299359,22cyclictest19926-21sort22:46:211
1663299358,24cyclictest9547-21latency_hist01:21:121
1663299358,23cyclictest10461-21gltestperf22:36:241
1663299353,27cyclictest0-21swapper/121:06:171
1663299352,5cyclictest0-21swapper/123:41:211
1663299351,5cyclictest0-21swapper/123:31:211
1663299351,4cyclictest24653-21rm22:51:161
1663299351,4cyclictest24653-21rm22:51:161
1663299351,3cyclictest5075-21ssh23:03:031
16632993511,21cyclictest1609-21ptp4l-jitter22:16:281
16632993510,22cyclictest18964-21grep21:46:231
16632993510,22cyclictest17847-21gltestperf23:16:231
16632993510,22cyclictest12461-21cut01:56:301
1663299350,4cyclictest16543-21fschecks_time21:41:211
1663299350,4cyclictest10069-21ssh00:46:501
1663299350,3cyclictest9294-21rm23:06:511
1663299350,3cyclictest4186-21ssh00:07:451
1663299350,3cyclictest21857-21irqrtprio00:26:291
106891350,1ptp4l401ktimersoftd/323:04:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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