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2026-05-13 - 08:03
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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 May 13, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
548522460,6sleep00-21swapper/020:29:120
2445521810,3sleep3688999cyclictest23:30:483
1068911600,4ptp4l401ktimersoftd/320:33:433
106891940,1ptp4l401ktimersoftd/322:55:483
106891720,1ptp4l401ktimersoftd/300:44:563
198322650,4sleep1687299cyclictest23:59:251
67412644,10sleep20-21swapper/220:33:472
106891640,1ptp4l401ktimersoftd/301:54:103
106891640,1ptp4l401ktimersoftd/301:35:233
126042620,2sleep00-21swapper/000:59:180
115272600,5sleep0686499cyclictest01:32:140
106891570,2ptp4l17508-21kworker/3:100:36:333
106891570,1ptp4l401ktimersoftd/323:52:043
106891540,1ptp4l401ktimersoftd/322:40:093
143291530,2getstats0-21swapper/300:49:083
106891530,1ptp4l401ktimersoftd/300:06:063
6872995123,9cyclictest25-21ksoftirqd/123:04:111
687299501,8cyclictest14941-21apt-get00:29:021
106891500,1ptp4l401ktimersoftd/301:02:093
6872994928,13cyclictest25-21ksoftirqd/101:28:591
106891490,1ptp4l401ktimersoftd/301:06:393
106891490,1ptp4l401ktimersoftd/301:06:393
6872994824,8cyclictest25-21ksoftirqd/121:19:091
6872994824,4cyclictest25-21ksoftirqd/100:04:191
106891480,14ptp4l4358-21kworker/3:223:47:473
6872994723,4cyclictest25-21ksoftirqd/123:10:581
6872994720,4cyclictest25-21ksoftirqd/100:49:551
106891470,1ptp4l401ktimersoftd/322:46:093
687299466,7cyclictest25-21ksoftirqd/101:14:101
6872994625,8cyclictest25-21ksoftirqd/120:33:521
6872994622,4cyclictest25-21ksoftirqd/122:59:081
6872994622,4cyclictest25-21ksoftirqd/100:24:281
106891460,1ptp4l401ktimersoftd/322:35:403
6872994521,4cyclictest25-21ksoftirqd/100:09:561
6872994520,4cyclictest25-21ksoftirqd/123:33:561
6872994520,4cyclictest25-21ksoftirqd/123:24:181
6872994519,4cyclictest25-21ksoftirqd/101:59:171
6872994512,8cyclictest25-21ksoftirqd/100:14:201
106891450,0ptp4l401ktimersoftd/321:47:073
6872994434,3cyclictest25-21ksoftirqd/100:54:241
6872994422,3cyclictest25-21ksoftirqd/100:35:051
6872994421,7cyclictest25-21ksoftirqd/101:44:171
6872994421,4cyclictest25-21ksoftirqd/122:35:361
6872994420,4cyclictest25-21ksoftirqd/101:49:271
6872994420,4cyclictest25-21ksoftirqd/101:09:211
6872994419,4cyclictest25-21ksoftirqd/123:19:251
6872994419,4cyclictest25-21ksoftirqd/123:19:251
6872994417,9cyclictest25-21ksoftirqd/122:44:101
687299440,32cyclictest233-21systemd-journal23:53:561
106891440,0ptp4l401ktimersoftd/300:26:143
687299434,3cyclictest121rcu_preempt00:19:221
6872994333,3cyclictest25-21ksoftirqd/122:18:551
6872994319,4cyclictest25-21ksoftirqd/123:39:251
6872994318,4cyclictest25-21ksoftirqd/123:34:101
6872994317,4cyclictest25-21ksoftirqd/100:39:171
6872994316,4cyclictest25-21ksoftirqd/121:09:051
6872994315,4cyclictest25-21ksoftirqd/101:34:311
6872994314,7cyclictest25-21ksoftirqd/122:23:551
6872994314,4cyclictest25-21ksoftirqd/123:54:241
106891430,1ptp4l401ktimersoftd/300:42:153
687299426,3cyclictest25-21ksoftirqd/120:43:531
6872994236,3cyclictest25-21ksoftirqd/121:33:571
6872994236,3cyclictest25-21ksoftirqd/121:33:571
687299422,9cyclictest25-21ksoftirqd/101:29:271
6872994219,4cyclictest25-21ksoftirqd/122:24:081
6872994218,4cyclictest25-21ksoftirqd/122:08:541
6872994218,4cyclictest25-21ksoftirqd/101:04:201
6872994218,4cyclictest25-21ksoftirqd/101:04:201
6872994216,9cyclictest25-21ksoftirqd/101:39:231
6872994216,5cyclictest25-21ksoftirqd/101:54:141
6872994215,9cyclictest25-21ksoftirqd/101:03:581
6872994215,10cyclictest25-21ksoftirqd/120:49:071
6872994214,9cyclictest25-21ksoftirqd/122:09:171
6872994214,4cyclictest25-21ksoftirqd/121:59:111
130342420,2sleep00-21swapper/020:44:080
687299417,3cyclictest25-21ksoftirqd/123:14:191
687299415,3cyclictest25-21ksoftirqd/121:04:061
6872994123,3cyclictest25-21ksoftirqd/100:44:211
6872994119,4cyclictest25-21ksoftirqd/121:24:061
6872994115,8cyclictest25-21ksoftirqd/120:48:521
6872994115,8cyclictest25-21ksoftirqd/101:23:591
6872994021,7cyclictest25-21ksoftirqd/120:54:041
6872994014,9cyclictest25-21ksoftirqd/121:44:111
106891400,1ptp4l401ktimersoftd/323:15:493
106891400,1ptp4l401ktimersoftd/323:06:013
106891400,1ptp4l401ktimersoftd/323:00:323
106891400,16ptp4l401ktimersoftd/322:50:333
687299396,6cyclictest25-21ksoftirqd/122:54:121
687299395,3cyclictest25-21ksoftirqd/120:59:101
687299394,6cyclictest25-21ksoftirqd/122:39:111
687299393,2cyclictest121rcu_preempt22:49:121
687299392,3cyclictest3733-21dpkg21:33:531
687299392,3cyclictest3733-21dpkg21:33:531
6872993915,10cyclictest25-21ksoftirqd/121:53:541
106891390,1ptp4l401ktimersoftd/321:24:213
106891390,1ptp4l401ktimersoftd/300:58:363
106891390,1ptp4l401ktimersoftd/300:14:033
6872993818,7cyclictest25-21ksoftirqd/121:14:221
6872993815,4cyclictest25-21ksoftirqd/122:29:121
6872993813,8cyclictest25-21ksoftirqd/123:44:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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