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2026-08-28 - 11:24
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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 Fri Aug 28, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911050,39ptp4l401ktimersoftd/321:29:593
74482670,3sleep11936399cyclictest02:11:091
19358996355,4cyclictest9-21ksoftirqd/002:48:160
106891630,1ptp4l401ktimersoftd/321:38:193
19358996254,4cyclictest9-21ksoftirqd/001:13:140
19376996151,5cyclictest41-21ksoftirqd/300:48:163
19358996152,4cyclictest9-21ksoftirqd/022:43:100
261012600,4sleep233-21ksoftirqd/201:23:322
19358996052,4cyclictest9-21ksoftirqd/002:03:130
19358995951,4cyclictest9-21ksoftirqd/002:28:150
33452580,8sleep2321ktimersoftd/222:03:182
297492580,1sleep20-21swapper/200:23:012
19376995745,7cyclictest41-21ksoftirqd/302:38:153
19376995745,7cyclictest41-21ksoftirqd/302:38:153
106891570,1ptp4l401ktimersoftd/323:44:493
100652570,1sleep00-21swapper/002:13:240
106891560,1ptp4l401ktimersoftd/301:01:453
106891560,1ptp4l401ktimersoftd/301:01:453
19376995544,6cyclictest41-21ksoftirqd/322:18:083
201582540,2sleep020160-21ssh23:38:550
19376995443,5cyclictest41-21ksoftirqd/301:23:153
19358995448,3cyclictest9-21ksoftirqd/022:58:110
19358995444,5cyclictest9-21ksoftirqd/000:28:140
19376995339,8cyclictest41-21ksoftirqd/323:58:133
19376995339,6cyclictest41-21ksoftirqd/301:03:133
106891530,1ptp4l401ktimersoftd/300:35:023
316752520,1sleep10-21swapper/100:57:411
316752520,1sleep10-21swapper/100:57:411
253242520,3sleep11936399cyclictest00:18:151
19358995140,4cyclictest9-21ksoftirqd/000:08:130
19358994940,5cyclictest9-21ksoftirqd/021:53:090
176542490,9sleep017658-21gltestperf21:28:120
1921824827,9sleep20-21swapper/221:32:272
106891470,1ptp4l401ktimersoftd/323:42:443
1935899464,4cyclictest121rcu_preempt01:43:070
19376994539,3cyclictest41-21ksoftirqd/301:38:163
19358994518,3cyclictest9-21ksoftirqd/022:03:200
19358994517,4cyclictest9-21ksoftirqd/022:32:580
1935899447,7cyclictest9-21ksoftirqd/001:03:220
19358994437,4cyclictest9-21ksoftirqd/021:37:580
19358994433,5cyclictest9-21ksoftirqd/001:33:140
106891440,2ptp4l7668-21kworker/3:123:05:033
106891440,1ptp4l401ktimersoftd/301:37:583
19376994231,5cyclictest41-21ksoftirqd/301:53:153
19358994236,3cyclictest9-21ksoftirqd/000:03:110
161992420,2sleep10-21swapper/100:41:311
309532410,1sleep00-21swapper/001:28:320
19358994134,3cyclictest9-21ksoftirqd/022:23:100
19358994132,5cyclictest9-21ksoftirqd/023:28:120
106891410,1ptp4l401ktimersoftd/302:28:183
19358994027,3cyclictest9-21ksoftirqd/001:58:190
1935899401,8cyclictest9-21ksoftirqd/000:23:010
106891400,1ptp4l401ktimersoftd/300:05:003
14592392,5sleep20-21swapper/202:38:172
14592392,5sleep20-21swapper/202:38:172
106891390,1ptp4l401ktimersoftd/301:12:103
19376993827,5cyclictest41-21ksoftirqd/323:23:113
19358993825,3cyclictest9-21ksoftirqd/000:43:250
19358993814,7cyclictest9-21ksoftirqd/023:18:260
106891380,1ptp4l401ktimersoftd/302:11:023
106891380,1ptp4l401ktimersoftd/301:29:533
106891380,1ptp4l401ktimersoftd/301:13:313
19376993731,3cyclictest41-21ksoftirqd/323:22:593
19376993715,6cyclictest41-21ksoftirqd/322:48:263
1937699370,3cyclictest121rcu_preempt22:03:163
19358993730,3cyclictest9-21ksoftirqd/000:53:130
19358993730,3cyclictest9-21ksoftirqd/000:53:130
19358993725,9cyclictest9-21ksoftirqd/000:38:190
19358993722,3cyclictest9-21ksoftirqd/000:13:300
19358993722,12cyclictest9-21ksoftirqd/023:08:160
19358993719,9cyclictest9-21ksoftirqd/000:58:170
19358993719,9cyclictest9-21ksoftirqd/000:58:170
106891370,1ptp4l401ktimersoftd/323:55:323
106891370,1ptp4l401ktimersoftd/323:35:033
106891370,1ptp4l401ktimersoftd/323:28:243
106891370,1ptp4l401ktimersoftd/321:46:423
106891370,1ptp4l401ktimersoftd/302:55:523
106891370,1ptp4l401ktimersoftd/302:34:233
106891370,1ptp4l401ktimersoftd/302:25:433
106891370,1ptp4l401ktimersoftd/302:21:583
106891370,1ptp4l401ktimersoftd/302:14:343
106891370,1ptp4l401ktimersoftd/301:19:193
106891370,1ptp4l401ktimersoftd/300:31:273
106891370,1ptp4l401ktimersoftd/300:19:233
106891370,1ptp4l401ktimersoftd/300:13:053
19358993622,3cyclictest9-21ksoftirqd/001:27:020
19358993620,13cyclictest9-21ksoftirqd/002:43:040
19358993620,13cyclictest9-21ksoftirqd/002:43:040
19358993615,14cyclictest9-21ksoftirqd/023:46:440
19358993610,16cyclictest9-21ksoftirqd/022:38:110
173872363,19sleep117467-21/usr/sbin/munin21:28:101
106891360,1ptp4l401ktimersoftd/323:51:103
106891360,1ptp4l401ktimersoftd/323:00:133
106891360,1ptp4l401ktimersoftd/302:51:513
106891360,1ptp4l401ktimersoftd/301:58:053
106891360,1ptp4l401ktimersoftd/301:46:103
106891360,1ptp4l401ktimersoftd/300:54:293
106891360,1ptp4l401ktimersoftd/300:54:293
106891360,1ptp4l401ktimersoftd/300:43:313
106891360,0ptp4l401ktimersoftd/302:45:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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