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2026-09-24 - 03:49
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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 Thu Sep 24, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911000,34ptp4l401ktimersoftd/321:46:293
209622860,2sleep30-21swapper/302:49:483
154232750,5sleep115414-21phc2sys-jitter01:38:201
106891750,1ptp4l401ktimersoftd/301:21:573
14962690,4sleep341-21ksoftirqd/301:23:443
106891670,1ptp4l401ktimersoftd/302:59:013
88662664,10sleep00-21swapper/021:45:120
119502660,2sleep00-21swapper/022:58:110
249852640,2sleep20-21swapper/200:08:392
106891590,1ptp4l401ktimersoftd/301:35:583
106891570,1ptp4l401ktimersoftd/301:07:423
106891560,1ptp4l401ktimersoftd/302:18:443
106891560,1ptp4l401ktimersoftd/300:18:473
51762540,1sleep35178-21rm02:01:503
51762540,1sleep35178-21rm02:01:503
56122520,2sleep10-21swapper/100:23:121
106891510,1ptp4l401ktimersoftd/300:16:303
106891510,1ptp4l401ktimersoftd/300:16:303
255372500,2sleep30-21swapper/301:48:293
106891480,1ptp4l401ktimersoftd/301:44:003
889224120,9sleep10-21swapper/121:45:341
106891400,1ptp4l401ktimersoftd/323:46:363
106891400,0ptp4l401ktimersoftd/323:55:333
9180993814,21cyclictest16285-21expr23:08:102
9180993813,21cyclictest27526-21sh01:51:212
106891380,1ptp4l401ktimersoftd/322:18:113
106891380,1ptp4l401ktimersoftd/303:10:313
106891380,1ptp4l401ktimersoftd/302:53:013
106891380,1ptp4l401ktimersoftd/302:08:043
106891380,1ptp4l401ktimersoftd/302:07:483
106891380,1ptp4l401ktimersoftd/301:11:393
106891380,1ptp4l401ktimersoftd/300:34:053
106891380,1ptp4l401ktimersoftd/300:03:153
106891380,0ptp4l401ktimersoftd/321:48:053
106891380,0ptp4l401ktimersoftd/300:49:263
918099372,5cyclictest0-21swapper/223:03:062
9180993712,22cyclictest4918-21expr01:28:172
9180993712,22cyclictest4062-21cat02:33:162
106891370,2ptp4l27275-21kworker/3:123:28:253
106891370,1ptp4l401ktimersoftd/323:50:203
106891370,1ptp4l401ktimersoftd/322:33:103
106891370,1ptp4l401ktimersoftd/321:55:533
106891370,1ptp4l401ktimersoftd/303:17:543
106891370,1ptp4l401ktimersoftd/303:06:573
106891370,1ptp4l401ktimersoftd/302:44:203
106891370,1ptp4l401ktimersoftd/302:40:013
106891370,1ptp4l401ktimersoftd/302:35:103
106891370,1ptp4l401ktimersoftd/302:13:293
106891370,1ptp4l401ktimersoftd/301:30:553
106891370,1ptp4l401ktimersoftd/300:58:033
106891370,1ptp4l401ktimersoftd/300:53:433
106891370,1ptp4l401ktimersoftd/300:44:313
106891370,1ptp4l401ktimersoftd/300:31:403
106891370,1ptp4l401ktimersoftd/300:10:493
106891370,0ptp4l401ktimersoftd/322:41:503
106891370,0ptp4l401ktimersoftd/302:29:263
918099362,6cyclictest0-21swapper/201:13:092
9180993613,20cyclictest8990-21sh00:58:232
9180993613,20cyclictest16286-21sh02:45:122
9180993613,20cyclictest16276-21phc2sys00:33:152
9174993610,4cyclictest228942cut01:13:151
106891360,1ptp4l401ktimersoftd/301:53:523
106891360,1ptp4l401ktimersoftd/300:24:403
106891360,1ptp4l401ktimersoftd/300:00:123
106891360,0ptp4l401ktimersoftd/301:38:063
106891360,0ptp4l401ktimersoftd/301:13:563
918099352,6cyclictest0-21swapper/202:23:092
918099352,4cyclictest16306-21apt-get02:13:112
9180993514,18cyclictest1493-21cron22:37:532
9180993511,20cyclictest1813-21basename22:38:052
9180993510,21cyclictest5438-21ptp4l-jitter22:43:192
918099350,4cyclictest14986-21sed01:38:172
106891350,1ptp4l401ktimersoftd/323:38:213
106891350,1ptp4l401ktimersoftd/300:40:543
918099348,4cyclictest6765-21basename02:03:132
918099342,4cyclictest0-21swapper/223:28:072
918099341,5cyclictest0-21swapper/202:38:112
9180993412,19cyclictest31737-21sh00:16:492
9180993412,19cyclictest31737-21sh00:16:492
917499348,17cyclictest11111-21bc02:08:091
9174993429,3cyclictest25-21ksoftirqd/100:32:551
106891340,2ptp4l27275-21kworker/3:122:52:043
918099339,4cyclictest22867-21cron23:22:542
918099338,3cyclictest3158-21if_enp1s0.100:53:162
918099337,3cyclictest27898-21bc23:33:072
9180993315,15cyclictest33-21ksoftirqd/221:55:262
9180993312,18cyclictest23622-21sh00:41:252
9180993311,19cyclictest20191-21sh02:48:302
9180993311,19cyclictest13207-21sh00:30:232
9180993310,20cyclictest718-21fschecks_count00:18:102
9180993310,19cyclictest12838-21apt-key23:57:552
9174993326,4cyclictest25-21ksoftirqd/103:03:121
70282336,12sleep20-21swapper/221:43:042
918099329,3cyclictest13398-21latency_hist23:02:542
918099328,3cyclictest18253-21cpuspeed_turbos00:03:092
918099328,3cyclictest18112-21uname22:03:112
918099327,4cyclictest12515-21basename02:08:202
918099322,7cyclictest0-21swapper/221:48:032
918099322,4cyclictest0-21swapper/222:23:072
918099322,4cyclictest0-21swapper/201:03:082
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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