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2026-05-23 - 11:32
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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 50 highest latencies:
System rackbslot6.osadl.org (updated Sat May 23, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1935421820,4sleep32093599cyclictest01:59:493
1276321590,4sleep02091899cyclictest01:53:230
1068911160,9ptp4l19157-21kworker/3:020:34:483
276472800,2sleep00-21swapper/001:34:520
106891710,1ptp4l401ktimersoftd/323:07:213
106891700,1ptp4l401ktimersoftd/300:42:513
15882670,4sleep02091899cyclictest01:09:310
20930996650,7cyclictest33-21ksoftirqd/200:54:402
164592660,4sleep02091899cyclictest00:50:000
310952610,1sleep20-21swapper/220:59:252
22412610,3sleep233-21ksoftirqd/200:04:292
175902600,3sleep017592-21latency_hist23:14:280
57332580,5sleep02091899cyclictest23:01:150
20930995845,6cyclictest33-21ksoftirqd/223:49:412
106891580,1ptp4l401ktimersoftd/323:43:363
106891570,1ptp4l401ktimersoftd/323:10:033
206362564,41sleep00-21swapper/020:37:020
20930995443,5cyclictest33-21ksoftirqd/222:49:402
20930995429,18cyclictest33-21ksoftirqd/223:44:412
204912544,37sleep20-21swapper/220:35:112
127872540,4sleep32093599cyclictest00:47:063
126132540,1sleep10-21swapper/101:53:081
20930995338,6cyclictest33-21ksoftirqd/220:49:372
106891520,1ptp4l29214-21kworker/3:101:41:493
192602500,2sleep219258-21sh01:59:482
307482460,1sleep230745-21sh01:04:512
106891450,1ptp4l401ktimersoftd/300:02:263
106891440,1ptp4l401ktimersoftd/301:06:383
106891400,0ptp4l401ktimersoftd/301:39:273
106891400,0ptp4l401ktimersoftd/300:12:423
106891400,0ptp4l401ktimersoftd/300:12:423
20930993933,3cyclictest33-21ksoftirqd/222:04:252
20923993919,17cyclictest25-21ksoftirqd/122:15:191
106891390,1ptp4l401ktimersoftd/300:34:053
20923993813,3cyclictest22377-21latency_hist23:19:281
106891380,1ptp4l401ktimersoftd/323:59:183
106891380,1ptp4l401ktimersoftd/323:20:013
106891380,1ptp4l401ktimersoftd/322:49:493
106891380,1ptp4l401ktimersoftd/322:41:143
106891380,1ptp4l401ktimersoftd/302:07:323
106891380,1ptp4l401ktimersoftd/301:54:203
106891380,1ptp4l401ktimersoftd/301:30:443
20930993725,5cyclictest33-21ksoftirqd/200:44:402
20923993714,3cyclictest9610-21/usr/sbin/munin00:44:401
106891370,1ptp4l401ktimersoftd/323:48:443
106891370,1ptp4l401ktimersoftd/323:36:063
106891370,1ptp4l401ktimersoftd/323:32:073
106891370,1ptp4l401ktimersoftd/322:46:283
106891370,1ptp4l401ktimersoftd/322:20:033
106891370,1ptp4l401ktimersoftd/320:40:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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