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2026-04-06 - 09:38
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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 Mon Apr 06, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
475329632,18sleep10-21swapper/119:08:261
5087998217,25cyclictest0-21swapper/119:40:321
5087998025,15cyclictest6319-21seq22:13:211
367128031,35sleep00-21swapper/019:05:180
270992800,13sleep0141ksoftirqd/023:10:250
5087997924,21cyclictest22121-21cat21:25:341
5087997917,16cyclictest503-21snmpd00:31:191
5087997825,14cyclictest11748-21seq22:27:071
5085997852,14cyclictest14-21ksoftirqd/021:05:250
5085997850,18cyclictest14-21ksoftirqd/000:05:120
5085997849,16cyclictest14-21ksoftirqd/022:35:130
5085997815,18cyclictest0-21swapper/020:05:110
326402770,28sleep1251rcuc/121:55:321
5085997654,12cyclictest0-21swapper/022:40:150
5087997540,19cyclictest26-21ksoftirqd/100:20:111
5087997524,16cyclictest9410-21ntpq20:50:311
5087997524,16cyclictest8195-21seq22:16:321
5087997524,16cyclictest8195-21seq22:16:321
5085997549,16cyclictest14-21ksoftirqd/021:35:130
5085997446,16cyclictest0-21swapper/022:00:160
5087997325,17cyclictest3782-21ntp_kernel_pll_20:35:301
5085997351,12cyclictest14-21ksoftirqd/023:50:130
5085997320,48cyclictest0-21swapper/019:20:130
5085997313,18cyclictest0-21swapper/023:20:100
5085997246,17cyclictest14-21ksoftirqd/023:45:120
5085997243,17cyclictest14-21ksoftirqd/022:50:110
5087997133,8cyclictest26-21ksoftirqd/119:45:081
5087997133,8cyclictest26-21ksoftirqd/119:15:501
5085997143,17cyclictest14-21ksoftirqd/000:10:150
5085997142,17cyclictest14-21ksoftirqd/021:50:140
5085997041,22cyclictest14-21ksoftirqd/023:25:120
5085996951,10cyclictest14-21ksoftirqd/020:40:230
5085996940,16cyclictest0-21swapper/021:00:140
5085996939,16cyclictest0-21swapper/023:55:140
508799673,13cyclictest19050-21cron22:50:001
5085996639,22cyclictest14-21ksoftirqd/000:30:250
5085996635,19cyclictest0-21swapper/021:20:150
5087996532,20cyclictest26-21ksoftirqd/123:10:121
5085996540,16cyclictest14-21ksoftirqd/023:00:120
5085996536,11cyclictest14-21ksoftirqd/021:30:330
5085996534,24cyclictest14-21ksoftirqd/019:30:130
5085996512,47cyclictest0-21swapper/023:15:120
5085996440,18cyclictest14-21ksoftirqd/020:45:100
5085996435,20cyclictest14-21ksoftirqd/020:30:110
5087996316,42cyclictest0-21swapper/119:20:201
508799629,13cyclictest151rcu_preempt21:15:291
508799623,9cyclictest168-21usb-storage22:23:421
5085996234,23cyclictest14-21ksoftirqd/023:30:210
5085996226,32cyclictest243-21systemd-journal22:31:230
5085996219,22cyclictest10531-21aten2.4-expect20:55:160
508599616,47cyclictest24224-21apt-get00:35:130
508599616,18cyclictest10455-21apt-get22:25:100
5085996138,19cyclictest14-21ksoftirqd/022:55:080
5085996138,17cyclictest14-21ksoftirqd/019:10:150
5085996132,24cyclictest457-21dbus-daemon20:20:000
508599606,43cyclictest16220-21apt-get19:40:110
5085996039,16cyclictest14-21ksoftirqd/023:40:150
5085996030,17cyclictest0-21swapper/019:50:110
5085996020,33cyclictest7487-21aten2.4-expect19:15:160
5085996018,19cyclictest0-21swapper/022:15:220
5085996018,19cyclictest0-21swapper/022:15:220
5085995937,16cyclictest14-21ksoftirqd/000:00:160
508599593,51cyclictest27280-21sshd20:10:260
5085995935,18cyclictest14-21ksoftirqd/021:25:380
5085995931,21cyclictest14-21ksoftirqd/022:10:200
5085995922,32cyclictest243-21systemd-journal21:11:070
508799584,15cyclictest151rcu_preempt20:15:221
5087995812,40cyclictest0-21swapper/123:50:111
5085995842,8cyclictest14-21ksoftirqd/022:05:120
5085995839,11cyclictest0-21swapper/021:45:120
5085995832,21cyclictest22014-21apt-get00:30:000
5085995831,21cyclictest14-21ksoftirqd/021:15:170
5087995718,21cyclictest26-21ksoftirqd/122:05:001
5085995741,10cyclictest14-21ksoftirqd/023:40:010
5085995741,10cyclictest14-21ksoftirqd/020:00:010
5085995740,11cyclictest14-21ksoftirqd/021:55:280
5085995739,12cyclictest14-21ksoftirqd/020:25:190
5085995739,10cyclictest14-21ksoftirqd/022:20:200
5085995739,10cyclictest14-21ksoftirqd/020:05:000
5085995737,11cyclictest14-21ksoftirqd/000:15:150
5085995722,30cyclictest243-21systemd-journal00:21:170
5085995721,31cyclictest3169-21aten2.4-expect20:35:180
5085995719,33cyclictest26690-21aten2.4-expect21:40:170
508799569,11cyclictest0-21swapper/120:58:411
508799562,16cyclictest23078-21aten2.4-expect21:30:161
5087995616,20cyclictest26-21ksoftirqd/121:45:191
5087995610,11cyclictest0-21swapper/121:39:211
5087995610,11cyclictest0-21swapper/100:14:221
5085995639,9cyclictest14-21ksoftirqd/019:25:380
5085995639,10cyclictest14-21ksoftirqd/019:40:010
5085995638,10cyclictest14-21ksoftirqd/022:45:230
5085995619,32cyclictest18022-21aten2.4-expect19:45:160
508799555,44cyclictest0-21swapper/121:40:311
5087995532,17cyclictest24383-21tail00:35:181
5087995520,23cyclictest26-21ksoftirqd/100:25:131
5087995514,26cyclictest151rcu_preempt00:00:041
5085995537,10cyclictest14-21ksoftirqd/023:09:000
5085995518,30cyclictest0-21swapper/020:50:130
160112559,30sleep10-21swapper/121:10:151
508799548,41cyclictest0-21swapper/120:00:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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