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2026-04-10 - 18:18
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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 Fri Apr 10, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
941322110,9sleep09412-21aten2.4-expect07:05:130
1078528730,45sleep10-21swapper/107:08:201
11127997323,45cyclictest26-21ksoftirqd/110:05:271
177782720,6sleep017781-21grep08:55:260
11127996925,9cyclictest26-21ksoftirqd/109:12:441
11122996835,17cyclictest14-21ksoftirqd/007:40:380
11127996747,13cyclictest26-21ksoftirqd/112:10:111
11127996624,8cyclictest26-21ksoftirqd/109:55:381
11127996534,18cyclictest26-21ksoftirqd/112:00:261
1112299657,18cyclictest1377-21apt-get08:10:130
11122996539,21cyclictest243-21systemd-journal11:40:130
11122996534,25cyclictest14-21ksoftirqd/008:40:150
11122996532,27cyclictest14-21ksoftirqd/009:55:260
11122996434,15cyclictest14-21ksoftirqd/007:38:190
11122996434,15cyclictest14-21ksoftirqd/007:38:190
11127996320,38cyclictest0-21swapper/112:25:141
11127996317,41cyclictest0-21swapper/108:35:361
11122996318,38cyclictest32765-21cron09:40:000
11127996234,13cyclictest26-21ksoftirqd/107:39:001
11127996234,13cyclictest26-21ksoftirqd/107:39:001
1112299629,14cyclictest14-21ksoftirqd/010:30:280
1112299626,31cyclictest151rcu_preempt10:43:020
11122996246,10cyclictest14-21ksoftirqd/012:30:110
11122996230,17cyclictest14-21ksoftirqd/010:45:170
11122996110,39cyclictest151rcu_preempt08:24:320
11122996036,9cyclictest14-21ksoftirqd/012:05:100
11122996035,9cyclictest14-21ksoftirqd/009:43:190
11122996028,18cyclictest14-21ksoftirqd/007:30:180
11127995935,9cyclictest26-21ksoftirqd/108:14:451
11127995934,19cyclictest26-21ksoftirqd/111:26:341
11127995930,12cyclictest26-21ksoftirqd/109:25:161
11127995917,38cyclictest26-21ksoftirqd/108:45:331
11122995937,17cyclictest14-21ksoftirqd/010:25:160
11122995935,9cyclictest14-21ksoftirqd/009:01:140
11127995836,17cyclictest26-21ksoftirqd/111:47:431
11127995834,18cyclictest26-21ksoftirqd/111:41:131
11127995833,9cyclictest26-21ksoftirqd/109:45:501
11127995833,9cyclictest26-21ksoftirqd/109:00:161
11127995832,20cyclictest457-21dbus-daemon07:40:571
11127995816,13cyclictest251rcuc/112:20:011
11127995815,38cyclictest26-21ksoftirqd/109:15:251
11122995841,10cyclictest14-21ksoftirqd/011:45:130
11122995820,33cyclictest23344-21apt-get12:15:130
11122995815,37cyclictest243-21systemd-journal12:35:150
11127995734,18cyclictest26-21ksoftirqd/107:46:561
11127995734,17cyclictest26-21ksoftirqd/110:37:241
11127995733,9cyclictest26-21ksoftirqd/110:31:031
11127995733,8cyclictest26-21ksoftirqd/110:43:401
11127995716,37cyclictest26-21ksoftirqd/107:15:361
11127995713,40cyclictest0-21swapper/109:05:121
11127995713,39cyclictest0-21swapper/108:15:141
11127995713,39cyclictest0-21swapper/107:25:151
11122995735,9cyclictest14-21ksoftirqd/009:50:150
11122995735,17cyclictest26628-21runrttasks12:24:360
11122995734,9cyclictest14-21ksoftirqd/011:51:280
11122995734,9cyclictest14-21ksoftirqd/011:10:010
11122995732,10cyclictest14-21ksoftirqd/008:50:300
11122995732,10cyclictest14-21ksoftirqd/008:50:300
11122995717,34cyclictest457-21dbus-daemon10:40:000
11122995711,16cyclictest0-21swapper/007:10:120
11122995710,38cyclictest0-21swapper/011:30:120
11127995634,9cyclictest26-21ksoftirqd/108:43:351
11127995633,9cyclictest26-21ksoftirqd/109:51:141
11127995633,18cyclictest26-21ksoftirqd/109:33:341
11127995633,17cyclictest26-21ksoftirqd/111:10:581
11127995633,17cyclictest26-21ksoftirqd/109:23:151
11127995629,8cyclictest26-21ksoftirqd/111:38:481
11127995627,12cyclictest26-21ksoftirqd/107:15:011
11127995621,16cyclictest26-21ksoftirqd/109:43:521
1112299565,45cyclictest2568-21apt-get09:45:150
1112299565,10cyclictest0-21swapper/007:15:130
11122995634,8cyclictest14-21ksoftirqd/010:57:440
11122995630,11cyclictest14-21ksoftirqd/008:48:390
11122995627,16cyclictest14-21ksoftirqd/008:18:430
1112799557,42cyclictest0-21swapper/108:30:241
1112799556,36cyclictest26-21ksoftirqd/107:53:441
11127995532,9cyclictest26-21ksoftirqd/110:55:121
11127995532,9cyclictest26-21ksoftirqd/108:50:591
11127995532,9cyclictest26-21ksoftirqd/108:50:591
11127995532,8cyclictest26-21ksoftirqd/112:38:201
11127995511,10cyclictest0-21swapper/110:15:121
11127995510,40cyclictest562-21runrttasks12:05:221
1112299554,47cyclictest0-21swapper/007:25:230
1112299554,14cyclictest10875-21grep10:05:340
11122995535,15cyclictest30313-21runrttasks08:00:160
11122995532,8cyclictest14-21ksoftirqd/009:19:330
11122995527,22cyclictest455-21rs:main0
11122995516,35cyclictest14-21ksoftirqd/007:50:250
11122995516,34cyclictest14-21ksoftirqd/009:10:240
1112799549,40cyclictest0-21swapper/107:20:061
11127995431,17cyclictest26-21ksoftirqd/108:23:151
11127995430,9cyclictest26-21ksoftirqd/110:13:301
11127995430,9cyclictest26-21ksoftirqd/109:35:051
11127995430,9cyclictest26-21ksoftirqd/108:59:481
11127995428,13cyclictest26-21ksoftirqd/108:09:011
11127995421,15cyclictest26-21ksoftirqd/107:33:361
11127995411,39cyclictest0-21swapper/110:25:141
11127995411,39cyclictest0-21swapper/108:00:151
1112299549,9cyclictest0-21swapper/007:20:340
11122995430,9cyclictest14-21ksoftirqd/011:57:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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