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2026-01-07 - 11:40
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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 Jan 07, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911020,4ptp4l401ktimersoftd/319:19:273
300742940,5sleep00-21swapper/019:19:160
120962680,2sleep30-21swapper/322:47:213
106891680,1ptp4l401ktimersoftd/322:03:383
106891660,1ptp4l401ktimersoftd/322:57:423
320792644,10sleep20-21swapper/219:23:222
231492640,4sleep23225399cyclictest21:19:082
106891630,1ptp4l401ktimersoftd/300:06:473
106891620,1ptp4l401ktimersoftd/321:09:203
201732610,2sleep30-21swapper/322:23:323
106891590,1ptp4l401ktimersoftd/322:05:033
106891570,1ptp4l401ktimersoftd/323:33:263
106891570,1ptp4l401ktimersoftd/323:15:253
80502560,2sleep20-21swapper/220:44:312
246702560,1sleep00-21swapper/022:59:310
106891550,1ptp4l401ktimersoftd/322:18:303
66092530,1sleep10-21swapper/100:19:291
5272530,1sleep00-21swapper/023:40:020
83032520,2sleep00-21swapper/019:39:210
83032520,2sleep00-21swapper/019:39:210
32257995144,4cyclictest41-21ksoftirqd/322:59:233
320782504,33sleep10-21swapper/119:23:211
67282480,2sleep30-21swapper/321:37:073
106891480,0ptp4l401ktimersoftd/322:28:493
32257994739,4cyclictest41-21ksoftirqd/300:24:253
17562460,2sleep30-21swapper/323:42:013
106891460,12ptp4l8736-21kworker/3:100:15:013
106891450,2ptp4l8736-21kworker/3:100:52:483
106891450,2ptp4l8736-21kworker/3:100:52:483
106891450,2ptp4l29609-21kworker/3:120:21:203
106891450,1ptp4l401ktimersoftd/322:31:233
106891450,1ptp4l401ktimersoftd/300:33:583
106891450,11ptp4l401ktimersoftd/320:10:033
106891430,1ptp4l401ktimersoftd/322:41:323
32257994235,3cyclictest41-21ksoftirqd/321:44:203
32242994217,22cyclictest16317-21cpuspeed_turbos21:04:190
32242994215,4cyclictest28835-21fschecks_time21:59:220
106891420,1ptp4l401ktimersoftd/319:34:533
32242994115,3cyclictest17466-21cron19:59:060
106891410,1ptp4l401ktimersoftd/300:39:233
32257994030,6cyclictest41-21ksoftirqd/320:29:183
32253994033,4cyclictest2345-21turbostat19:29:052
32242994019,18cyclictest9-21ksoftirqd/020:43:090
32242994012,5cyclictest1806-21grep00:14:310
32242993915,3cyclictest20701-21idleruntime-cro00:34:120
106891390,1ptp4l401ktimersoftd/300:22:293
32257993830,5cyclictest41-21ksoftirqd/323:34:243
32242993812,4cyclictest8262-21sed00:54:120
32242993812,4cyclictest8262-21sed00:54:120
32242993812,3cyclictest26044-21/usr/sbin/munin22:29:290
32242993812,3cyclictest18256-21sh19:59:220
32242993811,4cyclictest25386-21diskmemload22:14:380
106891380,1ptp4l401ktimersoftd/323:55:283
106891380,1ptp4l401ktimersoftd/322:37:083
106891380,1ptp4l401ktimersoftd/300:35:563
106891380,10ptp4l401ktimersoftd/320:24:283
106891380,0ptp4l401ktimersoftd/323:20:463
32257993731,3cyclictest41-21ksoftirqd/321:24:253
32242993712,3cyclictest25386-21diskmemload23:47:450
3224299371,13cyclictest3045-21gltestperf19:29:080
32242993711,3cyclictest18369-21date22:54:100
106891370,1ptp4l401ktimersoftd/323:49:433
106891370,1ptp4l401ktimersoftd/323:10:153
106891370,1ptp4l401ktimersoftd/323:05:423
106891370,1ptp4l401ktimersoftd/323:05:423
106891370,1ptp4l401ktimersoftd/322:09:143
106891370,1ptp4l401ktimersoftd/321:56:203
106891370,1ptp4l401ktimersoftd/321:14:233
106891370,1ptp4l401ktimersoftd/321:00:523
106891370,1ptp4l401ktimersoftd/300:48:143
106891370,0ptp4l401ktimersoftd/322:49:173
3225799361,32cyclictest10127-21cron19:44:053
3225799361,32cyclictest10127-21cron19:44:053
3224299362,8cyclictest20949-21apt-get21:14:210
3224299361,15cyclictest0-21swapper/021:57:010
32242993610,3cyclictest25747-21sh22:29:100
106891360,2ptp4l8736-21kworker/3:100:01:383
106891360,1ptp4l401ktimersoftd/323:25:163
106891360,1ptp4l401ktimersoftd/321:31:543
106891360,1ptp4l401ktimersoftd/321:22:433
106891360,1ptp4l401ktimersoftd/321:22:433
32242993513,4cyclictest9-21ksoftirqd/020:53:520
32242993511,4cyclictest659-21latency_hist00:14:120
32242993511,3cyclictest46950irq/100-ens3-Tx23:29:110
106891350,1ptp4l401ktimersoftd/300:10:423
106891350,0ptp4l401ktimersoftd/321:51:463
106891350,0ptp4l401ktimersoftd/320:01:013
3224299340,16cyclictest0-21swapper/023:22:410
106891340,1ptp4l401ktimersoftd/319:44:183
32257993327,3cyclictest41-21ksoftirqd/319:54:053
106891330,2ptp4l29609-21kworker/3:120:15:383
106891330,1ptp4l401ktimersoftd/321:39:493
327592320,2sleep10-21swapper/122:03:391
32242993211,4cyclictest25386-21diskmemload21:48:420
32242993211,3cyclictest14218-21gltestperf20:59:230
106891320,1ptp4l401ktimersoftd/319:55:473
106891320,11ptp4l401ktimersoftd/320:49:363
32257993118,7cyclictest41-21ksoftirqd/320:44:193
285652310,2sleep00-21swapper/000:40:440
106891310,1ptp4l401ktimersoftd/321:08:503
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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