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2026-01-05 - 12:21
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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 Mon Jan 05, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3112321570,5sleep1230199cyclictest21:25:091
1068911200,8ptp4l25726-21kworker/3:019:18:323
10842664,9sleep00-21swapper/019:18:210
106891660,1ptp4l401ktimersoftd/321:58:283
162652650,4sleep3391rcuc/300:25:583
9402590,2sleep10-21swapper/120:23:311
21762594,10sleep20-21swapper/219:22:432
106891590,1ptp4l401ktimersoftd/321:34:003
106891570,1ptp4l401ktimersoftd/323:07:513
106891570,1ptp4l401ktimersoftd/322:29:343
106891570,1ptp4l401ktimersoftd/322:29:343
100922560,2sleep30-21swapper/323:48:043
158232550,1sleep20-21swapper/200:25:132
106891530,1ptp4l401ktimersoftd/321:40:153
106891530,1ptp4l401ktimersoftd/300:18:033
106891530,1ptp4l401ktimersoftd/300:18:033
229699480,16cyclictest24746-21/usr/sbin/munin00:33:380
229699470,11cyclictest26395-21ssh21:53:200
106891450,1ptp4l401ktimersoftd/323:41:183
229699441,18cyclictest29148-21ssh00:06:530
106891430,1ptp4l401ktimersoftd/322:25:313
229699420,9cyclictest2096-21ptp4l22:33:250
229699420,9cyclictest2096-21ptp4l22:33:250
229699410,18cyclictest6152-21/usr/sbin/munin21:33:170
229699405,6cyclictest9-21ksoftirqd/000:01:010
229699403,5cyclictest9-21ksoftirqd/022:57:240
229699400,18cyclictest17130-21/usr/sbin/munin21:43:250
229699396,7cyclictest26683-21sh22:26:110
229699393,5cyclictest9-21ksoftirqd/022:01:530
229699390,8cyclictest28050-21irqstats20:13:200
229699390,6cyclictest0-21swapper/023:08:430
106891390,1ptp4l401ktimersoftd/323:58:483
106891390,1ptp4l401ktimersoftd/323:19:383
106891390,1ptp4l401ktimersoftd/323:12:083
106891390,1ptp4l401ktimersoftd/322:35:253
106891390,1ptp4l401ktimersoftd/322:35:253
106891390,1ptp4l401ktimersoftd/322:18:043
106891390,1ptp4l401ktimersoftd/322:05:273
106891390,1ptp4l401ktimersoftd/321:28:293
106891390,1ptp4l401ktimersoftd/300:35:013
229699386,28cyclictest14776-21latency_hist19:48:000
229699382,5cyclictest9-21ksoftirqd/000:52:260
106891380,1ptp4l401ktimersoftd/323:51:043
106891380,1ptp4l401ktimersoftd/323:16:173
106891380,1ptp4l401ktimersoftd/321:55:313
229699373,6cyclictest9-21ksoftirqd/023:56:320
229699371,15cyclictest27869-21diskmemload21:40:340
229699371,15cyclictest12958-21ssh22:44:150
106891370,1ptp4l401ktimersoftd/323:36:143
106891370,1ptp4l401ktimersoftd/323:31:043
106891370,1ptp4l401ktimersoftd/322:59:003
106891370,1ptp4l401ktimersoftd/322:53:103
106891370,1ptp4l401ktimersoftd/322:48:493
106891370,1ptp4l401ktimersoftd/322:08:343
106891370,1ptp4l401ktimersoftd/321:50:323
106891370,1ptp4l401ktimersoftd/321:25:263
106891370,1ptp4l401ktimersoftd/320:38:253
106891370,1ptp4l401ktimersoftd/300:48:593
106891370,1ptp4l401ktimersoftd/300:45:533
106891370,1ptp4l401ktimersoftd/300:28:453
106891370,1ptp4l401ktimersoftd/300:18:573
106891370,1ptp4l401ktimersoftd/300:12:253
106891370,0ptp4l401ktimersoftd/323:25:303
2312993630,3cyclictest29221-21cron20:17:593
229699362,5cyclictest0-21swapper/022:39:500
200923615,11sleep125-21ksoftirqd/119:20:321
106891360,1ptp4l401ktimersoftd/322:44:073
106891360,1ptp4l401ktimersoftd/322:42:473
106891360,1ptp4l401ktimersoftd/320:28:273
106891360,1ptp4l401ktimersoftd/319:58:183
229699354,6cyclictest9-21ksoftirqd/023:29:290
229699350,15cyclictest14210-21ssh00:23:260
247032340,3sleep3391rcuc/321:13:273
229699343,5cyclictest9-21ksoftirqd/000:45:540
229699342,5cyclictest0-21swapper/023:15:020
106891340,1ptp4l401ktimersoftd/300:38:153
106891340,0ptp4l401ktimersoftd/319:33:283
304192330,2sleep0229699cyclictest22:29:080
304192330,2sleep0229699cyclictest22:29:080
106891330,1ptp4l401ktimersoftd/323:55:283
229699325,6cyclictest7362-1kworker/u9:023:33:310
106891320,2ptp4l29054-21kworker/3:121:05:533
106891320,1ptp4l401ktimersoftd/321:44:253
106891320,1ptp4l401ktimersoftd/321:22:443
229699316,7cyclictest9-21ksoftirqd/023:02:140
229699315,6cyclictest9-21ksoftirqd/022:13:020
106891310,2ptp4l20825-21kworker/3:221:09:273
106891310,1ptp4l401ktimersoftd/322:13:083
229699303,17cyclictest23758-21fschecks_time21:13:190
229699302,18cyclictest25682-1kworker/u9:000:40:190
106891300,1ptp4l401ktimersoftd/320:51:123
106891300,1ptp4l401ktimersoftd/320:51:123
106891300,1ptp4l401ktimersoftd/319:28:183
106891300,0ptp4l401ktimersoftd/320:07:173
106891300,0ptp4l401ktimersoftd/319:57:513
229699295,7cyclictest9-21ksoftirqd/023:23:260
229699293,5cyclictest9-21ksoftirqd/000:13:080
229699293,5cyclictest9-21ksoftirqd/000:13:080
229699293,3cyclictest9-21ksoftirqd/021:25:220
2296992923,3cyclictest9-21ksoftirqd/023:18:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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