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2025-12-10 - 07:36
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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
Characteristics of the 100 highest latencies:
System rackcslot4.osadl.org (updated Wed Dec 10, 2025 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41756972265225,26sleep00-21swapper/019:06:470
41756342262186,61sleep10-21swapper/119:06:111
41761239914254,76cyclictest153055-21/usr/sbin/munin00:00:270
41761269913753,72cyclictest153085-21grep00:00:261
125899570,4rtkit-daemon1257-21rtkit-daemon23:53:300
125899560,4rtkit-daemon1257-21rtkit-daemon20:13:090
125899540,4rtkit-daemon1257-21rtkit-daemon20:25:480
125899510,7rtkit-daemon0-21swapper/100:34:221
125899510,4rtkit-daemon1257-21rtkit-daemon23:56:460
125899500,4rtkit-daemon1257-21rtkit-daemon20:07:310
125899480,4rtkit-daemon1257-21rtkit-daemon22:30:320
125899480,3rtkit-daemon0-21swapper/021:07:300
125899470,3rtkit-daemon0-21swapper/022:01:300
125899470,3rtkit-daemon0-21swapper/021:10:230
125899470,3rtkit-daemon0-21swapper/020:58:030
125899470,3rtkit-daemon0-21swapper/000:39:000
125899460,4rtkit-daemon0-21swapper/019:21:040
125899460,3rtkit-daemon0-21swapper/023:47:260
125899460,3rtkit-daemon0-21swapper/019:45:030
125899450,3rtkit-daemon0-21swapper/021:40:580
125899450,3rtkit-daemon0-21swapper/021:15:240
125899440,3rtkit-daemon0-21swapper/021:46:060
125899430,5rtkit-daemon1257-21rtkit-daemon21:38:310
772512410,3sleep00-21swapper/022:14:080
125899410,3rtkit-daemon0-21swapper/100:32:500
125899400,3rtkit-daemon0-21swapper/119:42:110
417612699393,26cyclictest106689-21apt-get22:55:171
417612699393,26cyclictest106689-21apt-get22:55:171
1308862390,4sleep0161rcuc/023:30:150
125899390,3rtkit-daemon0-21swapper/122:47:370
125899390,3rtkit-daemon0-21swapper/021:52:341
125899390,3rtkit-daemon0-21swapper/020:16:360
125899380,8rtkit-daemon80817-21sh22:17:591
125899380,5rtkit-daemon40245-21grep21:20:251
125899380,3rtkit-daemon0-21swapper/100:18:340
125899370,3rtkit-daemon1257-21rtkit-daemon22:18:310
125899370,1rtkit-daemon1257-21rtkit-daemon22:23:520
125899370,1rtkit-daemon1257-21rtkit-daemon22:23:520
125899360,3rtkit-daemon0-21swapper/121:31:030
125899360,3rtkit-daemon0-21swapper/119:26:470
125899360,3rtkit-daemon0-21swapper/022:37:121
125899350,4rtkit-daemon1257-21rtkit-daemon22:13:101
125899340,2rtkit-daemon0-21swapper/022:25:191
4176126993315,2cyclictest0-21swapper/119:30:221
4176126993313,3cyclictest127383-21apt-get23:25:141
125899330,3rtkit-daemon1257-21rtkit-daemon19:49:471
125899330,3rtkit-daemon0-21swapper/022:45:531
125899330,23rtkit-daemon2650ksoftirqd/100:05:331
125899320,4rtkit-daemon1257-21rtkit-daemon19:52:071
125899320,3rtkit-daemon0-21swapper/020:34:431
125899320,3rtkit-daemon0-21swapper/019:24:431
125899320,1rtkit-daemon1257-21rtkit-daemon21:01:560
125899320,1rtkit-daemon1257-21rtkit-daemon20:37:580
4176123993116,10cyclictest164894-21apt-get00:20:150
417612399311,16cyclictest31396-21diskmemload23:15:360
125899310,4rtkit-daemon1257-21rtkit-daemon20:18:331
125899310,1rtkit-daemon1257-21rtkit-daemon20:50:250
125899310,1rtkit-daemon1257-21rtkit-daemon20:23:000
417612399301,16cyclictest31396-21diskmemload00:07:370
4176126992914,9cyclictest7714-21apt-get20:10:181
417612399291,15cyclictest31396-21diskmemload23:07:260
417612399291,15cyclictest31396-21diskmemload22:59:360
417612399291,15cyclictest31396-21diskmemload22:59:350
417612399291,15cyclictest31396-21diskmemload21:26:460
1683502290,14sleep013-21ksoftirqd/000:25:020
125899290,4rtkit-daemon1257-21rtkit-daemon23:58:471
125899290,1rtkit-daemon1257-21rtkit-daemon22:36:390
417612699281,21cyclictest110103-21apt-get23:00:141
417612399289,7cyclictest13-21ksoftirqd/023:13:150
4176123992813,9cyclictest94608-1kworker/u9:123:40:140
417612399281,14cyclictest31396-21diskmemload22:50:200
125899280,4rtkit-daemon1257-21rtkit-daemon20:02:311
417612699271,6cyclictest4176118-21cyclictest21:16:071
417612699270,6cyclictest0-21swapper/122:33:551
417612399272,8cyclictest31396-21diskmemload23:01:500
417612399271,8cyclictest31396-21diskmemload23:25:260
417612399271,14cyclictest31396-21diskmemload22:41:140
417612399271,13cyclictest31396-21diskmemload23:37:250
417612399271,13cyclictest31396-21diskmemload22:09:240
417612399271,13cyclictest31396-21diskmemload21:53:230
417612399271,13cyclictest31396-21diskmemload21:20:290
417612699262,17cyclictest42437-21apt-get21:25:151
4176126992613,7cyclictest63750irq/132-enp2s023:50:121
417612399261,8cyclictest31396-21diskmemload22:29:040
417612399261,7cyclictest31396-21diskmemload00:10:090
4176123992612,9cyclictest123990-21apt-get23:20:130
417612399261,12cyclictest31396-21diskmemload21:55:330
310672260,16sleep10-21swapper/121:06:411
125899260,1rtkit-daemon1257-21rtkit-daemon20:40:181
125899260,18rtkit-daemon74100-21cron22:10:001
417612699252,16cyclictest4178781-21apt-get19:15:151
417612699250,6cyclictest0-21swapper/123:13:151
417612699250,6cyclictest0-21swapper/119:26:501
175512250,1sleep117549-21ls20:35:131
125899250,1rtkit-daemon1257-21rtkit-daemon20:46:161
125899250,1rtkit-daemon1257-21rtkit-daemon00:22:261
417612699244,19cyclictest179362-21sed00:40:001
417612699242,16cyclictest159121-21apt-get00:10:151
417612699241,6cyclictest4187636-21/usr/sbin/munin19:35:161
417612699241,5cyclictest35045-21ssh21:14:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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