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2025-09-17 - 22:33
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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 50 highest latencies:
System rackcslot4.osadl.org (updated Wed Sep 17, 2025 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24233822269193,26sleep00-21swapper/007:07:320
24233582264191,27sleep10-21swapper/107:07:181
24237309913448,70cyclictest2502345-21apt-key09:50:020
2423735991165,93cyclictest2502354-21gpg-connect-age09:50:021
125899970,4rtkit-daemon1257-21rtkit-daemon11:53:241
24692712670,3chrt0-21swapper/009:00:270
25496122630,1sleep12549611-21sleep10:55:001
25843382540,10sleep013-21ksoftirqd/011:40:240
125899530,4rtkit-daemon1257-21rtkit-daemon10:18:071
125899510,4rtkit-daemon1257-21rtkit-daemon11:10:500
125899510,3rtkit-daemon1257-21rtkit-daemon09:33:181
125899490,3rtkit-daemon1257-21rtkit-daemon11:59:171
125899440,4rtkit-daemon2597537-21apt-get12:00:151
125899420,5rtkit-daemon2448401-21apt-get08:10:150
125899420,3rtkit-daemon1257-21rtkit-daemon09:25:221
125899390,3rtkit-daemon0-21swapper/011:07:180
125899380,3rtkit-daemon0-21swapper/008:51:160
125899380,3rtkit-daemon0-21swapper/008:43:280
125899370,3rtkit-daemon1257-21rtkit-daemon11:00:261
125899370,3rtkit-daemon0-21swapper/011:25:230
125899370,3rtkit-daemon0-21swapper/011:25:220
125899370,3rtkit-daemon0-21swapper/008:47:330
125899370,3rtkit-daemon0-21swapper/007:21:530
25813532360,4chrt0-21swapper/011:36:160
242373099366,6cyclictest13-21ksoftirqd/009:35:000
2423730993613,6cyclictest13-21ksoftirqd/011:15:140
125899360,4rtkit-daemon1257-21rtkit-daemon12:17:241
125899360,3rtkit-daemon0-21swapper/008:34:270
2423730993520,5cyclictest2556342-21ssh11:03:280
125899350,5rtkit-daemon2573929-21ssh11:25:481
125899350,5rtkit-daemon2573929-21ssh11:25:471
125899350,4rtkit-daemon1257-21rtkit-daemon11:23:200
125899350,4rtkit-daemon1257-21rtkit-daemon10:49:330
125899350,4rtkit-daemon1257-21rtkit-daemon09:16:010
125899350,4rtkit-daemon0-21swapper/112:25:050
125899350,3rtkit-daemon0-21swapper/012:09:290
125899350,3rtkit-daemon0-21swapper/009:55:540
125899350,3rtkit-daemon0-21swapper/007:29:030
2423730993419,4cyclictest13-21ksoftirqd/009:10:000
125899340,5rtkit-daemon2523097-21ssh10:17:320
125899340,4rtkit-daemon1257-21rtkit-daemon08:37:400
125899340,3rtkit-daemon0-21swapper/111:32:410
125899340,3rtkit-daemon0-21swapper/110:23:290
125899340,3rtkit-daemon0-21swapper/010:47:381
125899340,3rtkit-daemon0-21swapper/008:22:121
125899330,3rtkit-daemon0-21swapper/007:14:331
242373099326,2cyclictest141rcu_preempt09:35:230
242373099325,2cyclictest141rcu_preempt09:50:000
125899320,4rtkit-daemon1257-21rtkit-daemon07:41:001
125899320,4rtkit-daemon0-21swapper/107:41:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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