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2026-03-14 - 11:46
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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 Sat Mar 14, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911060,3ptp4l401ktimersoftd/319:58:163
24752940,2sleep20-21swapper/201:01:062
24752940,2sleep20-21swapper/201:01:062
263702880,18sleep10-21swapper/122:07:451
201172670,4sleep02492999cyclictest23:06:500
201172670,4sleep02492999cyclictest23:06:500
35582660,2sleep10-21swapper/123:23:171
106891660,7ptp4l401ktimersoftd/322:18:093
100662650,2sleep00-21swapper/001:09:360
125792600,2sleep00-21swapper/001:11:120
141542590,2sleep20-21swapper/201:13:112
106891590,1ptp4l401ktimersoftd/322:53:323
316312570,1sleep30-21swapper/322:13:173
106891560,1ptp4l401ktimersoftd/323:52:033
94302550,1sleep30-21swapper/301:08:303
226802554,10sleep20-21swapper/219:55:442
245852504,34sleep10-21swapper/119:57:371
106891480,2ptp4l27322-21kworker/3:223:34:573
106891480,1ptp4l401ktimersoftd/322:39:173
105791480,5getstats2495199cyclictest20:34:283
106891460,1ptp4l401ktimersoftd/300:42:023
106891440,2ptp4l27322-21kworker/3:223:16:463
106891440,2ptp4l27322-21kworker/3:223:16:463
106891430,1ptp4l401ktimersoftd/321:03:253
24929994135,3cyclictest157212sleep021:53:390
106891410,1ptp4l401ktimersoftd/322:21:133
106891410,1ptp4l401ktimersoftd/320:55:413
175122400,4sleep1241ktimersoftd/101:16:111
106891400,1ptp4l401ktimersoftd/323:29:533
106891400,1ptp4l401ktimersoftd/301:30:063
106891400,1ptp4l401ktimersoftd/300:37:433
106891400,0ptp4l401ktimersoftd/321:35:533
106891390,5ptp4l401ktimersoftd/300:21:133
106891390,1ptp4l401ktimersoftd/323:36:073
106891390,1ptp4l401ktimersoftd/323:08:383
106891390,1ptp4l401ktimersoftd/323:08:383
106891390,1ptp4l401ktimersoftd/301:22:543
106891390,1ptp4l401ktimersoftd/300:09:463
23592380,2sleep30-21swapper/323:21:143
106891380,1ptp4l401ktimersoftd/322:50:313
106891380,1ptp4l401ktimersoftd/322:44:163
106891380,1ptp4l401ktimersoftd/322:32:103
106891380,1ptp4l401ktimersoftd/300:12:323
106891380,0ptp4l401ktimersoftd/300:48:143
106891370,5ptp4l401ktimersoftd/323:47:203
106891370,1ptp4l401ktimersoftd/323:57:293
106891370,1ptp4l401ktimersoftd/323:43:343
106891370,1ptp4l401ktimersoftd/323:05:203
106891370,1ptp4l401ktimersoftd/322:55:483
106891370,1ptp4l401ktimersoftd/322:29:523
106891370,1ptp4l401ktimersoftd/322:07:383
106891370,1ptp4l401ktimersoftd/301:18:393
106891370,1ptp4l401ktimersoftd/301:12:383
106891370,1ptp4l401ktimersoftd/300:27:243
106891360,1ptp4l401ktimersoftd/322:05:353
106891360,1ptp4l401ktimersoftd/301:05:283
106891360,1ptp4l401ktimersoftd/301:05:283
106891360,1ptp4l401ktimersoftd/300:02:523
106891350,1ptp4l401ktimersoftd/320:41:033
106891350,0ptp4l401ktimersoftd/300:59:123
106891350,0ptp4l401ktimersoftd/300:32:423
106891350,0ptp4l401ktimersoftd/300:19:523
106891340,1ptp4l401ktimersoftd/323:13:383
106891340,1ptp4l401ktimersoftd/323:13:383
291612330,5sleep029164-21needreboot23:16:050
291612330,5sleep029164-21needreboot23:16:050
106891330,1ptp4l401ktimersoftd/321:46:343
172932320,5sleep125-21ksoftirqd/121:56:011
106891320,10ptp4l401ktimersoftd/320:20:203
247512318,12sleep09-21ksoftirqd/019:59:460
2494599309,10cyclictest33-21ksoftirqd/223:07:282
2494599309,10cyclictest33-21ksoftirqd/223:07:282
24929993025,3cyclictest9-21ksoftirqd/020:50:410
106891300,0ptp4l401ktimersoftd/321:08:213
24945992923,4cyclictest33-21ksoftirqd/223:45:582
24936992924,3cyclictest25-21ksoftirqd/122:20:431
24936992923,3cyclictest25-21ksoftirqd/121:25:421
24936992914,5cyclictest25-21ksoftirqd/120:48:001
2492999294,4cyclictest121rcu_preempt00:56:440
24929992924,3cyclictest9-21ksoftirqd/022:45:430
24929992922,4cyclictest9-21ksoftirqd/023:00:240
24929992921,4cyclictest9-21ksoftirqd/000:35:570
155162290,4sleep0111rcuc/023:02:200
15442290,1sleep20-21swapper/223:54:462
106891290,1ptp4l401ktimersoftd/321:23:403
2494599284,3cyclictest121rcu_preempt22:30:582
24945992823,3cyclictest33-21ksoftirqd/200:41:072
24945992822,3cyclictest33-21ksoftirqd/221:30:422
24945992822,3cyclictest33-21ksoftirqd/221:30:422
24945992822,3cyclictest33-21ksoftirqd/221:10:412
24936992822,3cyclictest25-21ksoftirqd/121:50:431
24936992822,3cyclictest25-21ksoftirqd/120:15:401
24936992821,5cyclictest25-21ksoftirqd/100:20:571
24936992813,5cyclictest25-21ksoftirqd/122:21:061
24929992823,3cyclictest9-21ksoftirqd/022:30:550
24929992823,3cyclictest26699-1kworker/u9:000:24:520
24929992823,3cyclictest2662-21timerandwakeup22:16:110
2494599273,17cyclictest7332-21apt-get00:00:562
24945992722,3cyclictest33-21ksoftirqd/200:55:462
24945992722,3cyclictest33-21ksoftirqd/200:25:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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