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2026-07-01 - 13:07
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rack3slot6.osadl.org (updated Wed Jul 01, 2026 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
411029636,44sleep00-21swapper/019:05:190
34802900,5chrt36-21kcompactd022:05:050
88392880,5chrt8835-21aten2.4_r3power23:50:160
5515997857,14cyclictest0-21swapper/021:55:130
304922780,7sleep130494-21latency_hist20:20:001
5515997554,12cyclictest0-21swapper/021:05:120
5522997445,11cyclictest26-21ksoftirqd/122:35:151
5515997416,20cyclictest0-21swapper/021:30:160
5522997241,11cyclictest26-21ksoftirqd/122:00:131
5515997246,20cyclictest14-21ksoftirqd/000:00:020
5515997013,50cyclictest0-21swapper/023:40:130
5522996915,42cyclictest26-21ksoftirqd/123:52:421
5522996914,9cyclictest26-21ksoftirqd/121:03:241
5522996825,14cyclictest26-21ksoftirqd/123:25:011
5522996824,16cyclictest26-21ksoftirqd/122:15:001
551599684,32cyclictest26927-21apt-get23:10:210
534826839,20sleep10-21swapper/119:09:441
5522996711,8cyclictest151rcu_preempt22:44:341
551599677,51cyclictest18377-21apt-get19:45:150
551599666,18cyclictest21606-21apt-get21:25:120
5522996528,22cyclictest7284-21grep22:15:161
5522996522,38cyclictest26-21ksoftirqd/121:05:351
5522996521,9cyclictest26-21ksoftirqd/123:45:291
5515996546,11cyclictest14-21ksoftirqd/020:50:110
5515996525,34cyclictest29041-21aten2.4-expect21:45:170
5522996426,16cyclictest26-21ksoftirqd/122:55:001
551599644,21cyclictest26717-21apt-get21:40:150
5522996333,11cyclictest26-21ksoftirqd/123:15:131
5522996321,8cyclictest26-21ksoftirqd/100:20:211
5522996320,38cyclictest26-21ksoftirqd/123:30:321
5522996318,40cyclictest26-21ksoftirqd/119:35:241
5515996336,15cyclictest14-21ksoftirqd/020:15:110
5515996328,24cyclictest16640-21apt-get19:40:140
5515996320,37cyclictest243-21systemd-journal22:16:570
5515996318,20cyclictest32052-21seq20:23:230
551599626,47cyclictest9613-21apt-get19:20:130
5515996234,20cyclictest14-21ksoftirqd/000:25:150
5515996234,18cyclictest11348-21apt-get19:25:120
5515996232,16cyclictest16066-21apt-get21:10:120
5515996232,16cyclictest0-21swapper/023:25:120
5515996230,22cyclictest1756-21apt-get22:00:140
5515996227,25cyclictest16122-21apt-get22:40:120
5515996217,39cyclictest243-21systemd-journal20:11:310
5522996117,33cyclictest26-21ksoftirqd/121:20:241
551599614,21cyclictest23310-21sh00:35:000
5515996133,17cyclictest0-21swapper/023:20:120
551599613,20cyclictest14108-21turbostat.cron21:05:000
5515996130,18cyclictest0-21swapper/022:10:130
552299609,8cyclictest151rcu_preempt00:00:051
552299608,24cyclictest26-21ksoftirqd/121:10:211
552299602,19cyclictest26-21ksoftirqd/121:40:181
5522996016,39cyclictest0-21swapper/122:55:251
5515996037,10cyclictest23487-21apt-get00:35:170
552299599,14cyclictest26-21ksoftirqd/122:35:001
552299598,16cyclictest26-21ksoftirqd/119:55:371
552299598,16cyclictest26-21ksoftirqd/100:15:191
5522995933,20cyclictest18083-21gdbus21:15:051
5522995931,10cyclictest26-21ksoftirqd/123:55:101
5522995921,22cyclictest3777-21df_inode20:35:201
5515995943,9cyclictest14-21ksoftirqd/020:55:220
5515995943,9cyclictest14-21ksoftirqd/020:55:220
5515995937,16cyclictest14-21ksoftirqd/019:35:160
5515995935,13cyclictest0-21swapper/000:15:130
5515995933,17cyclictest14-21ksoftirqd/022:55:130
5515995930,14cyclictest3438-21apt-get20:35:130
5515995928,16cyclictest18271-21apt-get00:20:150
5515995926,21cyclictest0-21swapper/022:30:220
5515995923,26cyclictest25355-21apt-get20:05:140
5515995923,26cyclictest25355-21apt-get20:05:140
552299589,17cyclictest26-21ksoftirqd/119:50:171
552299588,17cyclictest26-21ksoftirqd/120:50:191
552299588,15cyclictest26-21ksoftirqd/121:30:231
552299588,15cyclictest26-21ksoftirqd/121:25:281
552299588,14cyclictest26-21ksoftirqd/120:45:181
552299588,14cyclictest26-21ksoftirqd/100:25:231
552299586,17cyclictest26-21ksoftirqd/119:45:261
5522995819,23cyclictest26-21ksoftirqd/122:26:521
5522995819,23cyclictest26-21ksoftirqd/122:26:521
5522995818,23cyclictest26-21ksoftirqd/123:36:511
551599589,19cyclictest26714-21munin-run21:40:010
5515995835,12cyclictest17860-21apt-get22:45:140
5515995832,15cyclictest0-21swapper/020:30:120
5515995831,18cyclictest6826-21apt-get20:45:150
5515995831,16cyclictest0-21swapper/023:05:120
5515995831,16cyclictest0-21swapper/023:05:120
5515995830,16cyclictest0-21swapper/023:30:120
552299579,16cyclictest26-21ksoftirqd/122:20:271
552299579,16cyclictest26-21ksoftirqd/120:56:301
552299579,16cyclictest26-21ksoftirqd/120:56:301
552299579,15cyclictest26-21ksoftirqd/120:40:321
552299579,15cyclictest26-21ksoftirqd/119:15:071
552299578,15cyclictest26-21ksoftirqd/120:25:191
552299578,15cyclictest26-21ksoftirqd/119:25:361
552299578,15cyclictest26-21ksoftirqd/100:10:071
552299578,13cyclictest26-21ksoftirqd/119:10:251
552299577,16cyclictest26-21ksoftirqd/120:00:171
552299577,15cyclictest26-21ksoftirqd/120:30:261
5522995717,34cyclictest26-21ksoftirqd/123:25:151
5522995712,34cyclictest0-21swapper/121:37:311
551599574,21cyclictest455-21rs:main0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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