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2026-04-08 - 13:41
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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 Wed Apr 08, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911060,4ptp4l401ktimersoftd/320:10:363
106891730,1ptp4l401ktimersoftd/321:40:013
1213996552,7cyclictest9-21ksoftirqd/023:24:450
263692630,4sleep2122399cyclictest00:55:062
165502610,2sleep20-21swapper/200:45:112
249702580,5sleep2122399cyclictest01:27:102
106891580,1ptp4l401ktimersoftd/300:05:103
16682560,3sleep1241ktimersoftd/101:04:371
150092560,5sleep315011-21fschecks_time00:44:513
1213995645,6cyclictest9-21ksoftirqd/000:44:470
106891560,1ptp4l401ktimersoftd/323:58:023
106891560,1ptp4l401ktimersoftd/323:58:023
275022550,2sleep10-21swapper/122:45:211
220542550,1sleep10-21swapper/101:24:481
1213995542,6cyclictest9-21ksoftirqd/020:19:410
1213995542,6cyclictest9-21ksoftirqd/020:19:410
106891550,1ptp4l401ktimersoftd/322:40:173
1231995447,4cyclictest41-21ksoftirqd/301:04:493
1218995313,3cyclictest2754-21sh22:54:351
71092520,2sleep20-21swapper/200:04:312
1231995245,4cyclictest41-21ksoftirqd/320:49:423
106891520,1ptp4l401ktimersoftd/300:00:473
1231995145,3cyclictest41-21ksoftirqd/322:49:453
1231995142,4cyclictest41-21ksoftirqd/322:09:453
1231995142,4cyclictest41-21ksoftirqd/322:09:453
106891500,1ptp4l401ktimersoftd/322:30:143
1213994837,6cyclictest9-21ksoftirqd/000:14:470
1231994741,4cyclictest41-21ksoftirqd/323:14:453
1231994741,3cyclictest41-21ksoftirqd/320:59:433
1213994738,5cyclictest9-21ksoftirqd/023:59:470
1231994638,4cyclictest41-21ksoftirqd/300:54:483
106891460,2ptp4l22122-21kworker/3:100:25:203
86332450,1sleep00-21swapper/001:10:060
106891450,1ptp4l401ktimersoftd/323:46:373
1213994432,6cyclictest9-21ksoftirqd/021:49:430
1213994331,5cyclictest9-21ksoftirqd/000:04:470
1231994235,4cyclictest41-21ksoftirqd/322:04:363
1231994235,4cyclictest41-21ksoftirqd/321:04:433
121899412,37cyclictest190-21jbd2/sda1-821:29:311
1213994130,5cyclictest9-21ksoftirqd/023:04:450
1213994128,5cyclictest9-21ksoftirqd/022:29:450
106891400,1ptp4l401ktimersoftd/301:15:333
121899392,6cyclictest12802-21apt-get23:04:441
106891390,1ptp4l401ktimersoftd/323:53:003
106891390,1ptp4l401ktimersoftd/323:12:143
106891390,1ptp4l401ktimersoftd/322:21:483
106891390,1ptp4l401ktimersoftd/300:18:033
1231993830,4cyclictest41-21ksoftirqd/300:39:493
123199381,5cyclictest41-21ksoftirqd/323:24:543
1223993827,8cyclictest33-21ksoftirqd/222:44:512
121899383,9cyclictest6937-21ssh01:09:491
106891380,1ptp4l401ktimersoftd/322:56:393
106891380,1ptp4l401ktimersoftd/322:25:483
106891380,1ptp4l401ktimersoftd/322:18:093
106891380,1ptp4l401ktimersoftd/322:18:093
106891380,1ptp4l401ktimersoftd/301:34:433
106891380,1ptp4l401ktimersoftd/301:02:183
123199375,3cyclictest121rcu_preempt00:09:493
1231993729,4cyclictest41-21ksoftirqd/322:34:453
121899372,7cyclictest16926-21apt-get01:19:491
1218993712,4cyclictest32636-21grep00:29:521
1218993712,3cyclictest32170-21idleruntime-cro23:24:341
1218993712,3cyclictest13502-21ls00:09:551
1213993725,9cyclictest9-21ksoftirqd/023:55:030
1213993725,9cyclictest9-21ksoftirqd/023:55:030
106891370,1ptp4l401ktimersoftd/323:39:383
106891370,1ptp4l401ktimersoftd/323:33:323
106891370,1ptp4l401ktimersoftd/322:47:283
106891370,1ptp4l401ktimersoftd/301:43:023
106891370,1ptp4l401ktimersoftd/301:25:043
106891370,1ptp4l401ktimersoftd/300:52:223
106891370,1ptp4l401ktimersoftd/300:30:093
1231993630,4cyclictest41-21ksoftirqd/320:24:293
1231993630,4cyclictest41-21ksoftirqd/320:24:293
1231993629,3cyclictest41-21ksoftirqd/320:14:423
1231993623,3cyclictest41-21ksoftirqd/320:29:463
1231993623,3cyclictest41-21ksoftirqd/320:29:463
121899369,4cyclictest14649-21irqrtprio20:39:481
121899363,12cyclictest4907-21cut00:34:471
121899361,4cyclictest0-21swapper/121:44:431
1218993614,3cyclictest233-21systemd-journal21:07:121
1218993613,3cyclictest27946-21sh22:14:431
1218993613,3cyclictest27946-21sh22:14:431
1218993613,3cyclictest24124-21pluginstate00:54:361
1218993612,3cyclictest7391-21date00:04:351
1218993611,5cyclictest4178-21grep00:00:021
1218993611,3cyclictest6878-21cat23:30:041
1213993631,2cyclictest9-21ksoftirqd/022:04:360
1213993626,6cyclictest9-21ksoftirqd/022:54:430
106891360,1ptp4l401ktimersoftd/323:23:343
106891360,1ptp4l401ktimersoftd/320:54:433
106891360,1ptp4l401ktimersoftd/320:24:543
106891360,1ptp4l401ktimersoftd/320:24:543
106891360,1ptp4l401ktimersoftd/301:20:163
106891360,1ptp4l401ktimersoftd/301:14:243
106891360,0ptp4l401ktimersoftd/323:05:083
81523517,8sleep10-21swapper/120:10:471
316412353,20sleep231738-21/usr/sbin/munin20:09:442
1231993528,3cyclictest41-21ksoftirqd/300:19:463
121899353,7cyclictest0-21swapper/101:34:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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