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2025-11-20 - 06:03
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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 rackcslot6.osadl.org (updated Thu Nov 20, 2025 00:46:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
48506021480,3sleep40-21swapper/419:05:314
4837682124105,17sleep00-21swapper/019:05:200
4847512121116,3sleep20-21swapper/219:05:302
485723999730,35cyclictest0-21swapper/622:58:136
5613802920,1sleep2561353-21ssh21:25:162
485677999124,37cyclictest0-21swapper/019:18:130
485685998916,41cyclictest0-21swapper/100:18:131
485685998816,41cyclictest0-21swapper/119:43:131
485677998616,38cyclictest0-21swapper/023:53:130
485677998514,39cyclictest0-21swapper/020:53:120
48546328543,13sleep30-21swapper/319:09:333
7608882840,0sleep70-21swapper/700:04:287
48538828344,33sleep10-21swapper/119:08:261
485723998216,36cyclictest0-21swapper/600:08:136
485723998215,37cyclictest0-21swapper/619:28:136
48446928161,18sleep50-21swapper/519:05:255
485723997914,35cyclictest0-21swapper/620:03:136
485685997915,36cyclictest0-21swapper/120:38:131
5820762780,2sleep335-21ksoftirqd/321:40:233
485723997513,30cyclictest0-21swapper/623:08:126
5840212720,0sleep70-21swapper/721:43:077
48525727051,13sleep70-21swapper/719:06:317
5153052680,0sleep40-21swapper/420:25:184
48537526842,13sleep60-21swapper/619:08:156
485702996355,8cyclictest0-21swapper/321:03:133
485702996221,37cyclictest0-21swapper/321:23:133
485702996221,37cyclictest0-21swapper/321:23:133
485702996115,35cyclictest0-21swapper/321:38:133
48573099460,13cyclictest0-21swapper/723:43:137
485730994416,28cyclictest0-21swapper/721:58:137
485730994416,28cyclictest0-21swapper/700:28:127
485730994415,29cyclictest0-21swapper/722:43:137
485730994415,29cyclictest0-21swapper/722:43:137
485730994124,17cyclictest0-21swapper/720:18:137
485730994114,27cyclictest0-21swapper/722:23:137
485730993916,23cyclictest0-21swapper/722:13:137
485730993916,22cyclictest0-21swapper/723:33:137
485730993910,28cyclictest541224-21diskmemload00:38:137
485694993511,24cyclictest0-21swapper/220:33:592
485723993410,1cyclictest0-21swapper/600:27:596
485694993410,24cyclictest0-21swapper/221:13:592
485694993410,24cyclictest0-21swapper/220:05:592
485677993410,24cyclictest0-21swapper/019:47:580
48569499339,24cyclictest0-21swapper/221:55:592
48569499328,24cyclictest0-21swapper/222:14:582
48568599328,24cyclictest0-21swapper/122:59:591
48567799328,24cyclictest0-21swapper/020:27:590
216999320,14rtkit-daemon0-21swapper/621:18:136
485730993115,15cyclictest0-21swapper/723:58:127
485694993113,3cyclictest0-21swapper/220:58:132
48567799317,24cyclictest0-21swapper/019:31:590
485730993014,15cyclictest0-21swapper/722:53:137
485723993014,15cyclictest0-21swapper/600:33:136
485702993014,15cyclictest0-21swapper/320:13:133
485694993010,19cyclictest0-21swapper/221:48:132
48567799307,0cyclictest0-21swapper/020:35:590
485723992913,15cyclictest0-21swapper/623:28:136
485694992913,15cyclictest0-21swapper/222:33:132
48567799295,24cyclictest0-21swapper/020:32:590
485723992812,15cyclictest0-21swapper/620:33:136
485716992828,0cyclictest0-21swapper/522:07:255
48569499284,24cyclictest0-21swapper/223:56:592
48569499284,24cyclictest0-21swapper/221:51:592
48569499284,24cyclictest0-21swapper/200:11:592
485694992812,15cyclictest0-21swapper/219:38:132
7258042270,0sleep30-21swapper/323:35:173
485723992711,15cyclictest0-21swapper/621:53:136
485723992711,15cyclictest0-21swapper/619:13:136
48568599279,17cyclictest0-21swapper/100:03:131
485677992711,15cyclictest0-21swapper/000:23:130
48573099269,16cyclictest0-21swapper/723:23:137
485702992626,0cyclictest0-21swapper/300:38:273
48569499262,24cyclictest0-21swapper/223:00:592
48569499262,24cyclictest0-21swapper/219:21:592
485694992610,15cyclictest0-21swapper/223:18:132
48572399251,24cyclictest0-21swapper/619:42:596
48569499251,24cyclictest0-21swapper/200:39:582
5669372240,1sleep763-21ksoftirqd/721:30:097
5256582240,0sleep7525655-21latency_hist20:45:007
48571099241,0cyclictest0-21swapper/423:51:594
485694992423,1cyclictest2107-21gnome-shell19:46:592
48567799248,15cyclictest0-21swapper/019:58:130
216999240,0rtkit-daemon0-21swapper/623:24:062
7544512230,1sleep50-21swapper/523:59:155
485716992322,1cyclictest2107-21gnome-shell21:33:595
48571099237,15cyclictest0-21swapper/423:38:134
485694992321,1cyclictest2107-21gnome-shell20:01:592
48567799237,15cyclictest0-21swapper/020:08:130
6863622220,1sleep0686355-21aten2.4-expect23:05:110
48569499222,13cyclictest0-21swapper/222:18:132
48573099215,15cyclictest0-21swapper/723:13:137
48571699218,13cyclictest0-21swapper/520:23:135
485716992111,10cyclictest0-21swapper/523:48:135
485716992110,10cyclictest0-21swapper/522:38:135
48570299216,14cyclictest0-21swapper/320:43:133
216999210,1rtkit-daemon2168-21rtkit-daemon22:25:196
7855332200,0sleep20-21swapper/200:23:552
7555732200,0sleep60-21swapper/600:00:126
48573099203,16cyclictest0-21swapper/720:48:137
485716992013,7cyclictest0-21swapper/523:03:135
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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