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2026-03-31 - 23:03
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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 50 highest latencies:
System rackcslot4.osadl.org (updated Tue Mar 31, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30716952256183,58sleep10-21swapper/107:09:361
30714652254180,58sleep00-21swapper/007:07:100
32531842760,4sleep10-21swapper/112:19:461
307185799692,46cyclictest3253563-21apt-get12:20:121
307185799682,43cyclictest3208424-21apt-get11:15:131
307185799642,42cyclictest3222333-21apt-get11:35:141
307185799642,39cyclictest3138073-21apt-get09:35:151
307185499592,38cyclictest3229262-21apt-get11:45:120
307185499592,37cyclictest3116067-21apt-get09:00:110
307185799571,4cyclictest3243013-21/usr/sbin/munin12:05:001
3071857995711,26cyclictest3151459-21sh09:54:031
307185499572,35cyclictest3183945-21apt-get10:40:130
3071857995614,23cyclictest3171603-21chrt10:21:071
3071857995611,25cyclictest3221559-21sh11:33:471
3071857995611,24cyclictest3231610-21sh11:47:421
307185799552,37cyclictest3162655-21apt-get10:10:131
307185799551,5cyclictest3211910-21apt-get11:20:121
31271602540,12sleep013-21ksoftirqd/009:19:540
3071857995410,31cyclictest3119764-21diskmemload12:08:071
307185799539,27cyclictest3187404-21seq10:45:031
307185799532,5cyclictest3134410-21apt-get09:30:111
307185799531,3cyclictest3180378-21apt-get10:35:121
307185799530,7cyclictest3121576-21ssh09:10:471
307185799529,24cyclictest3158461-21sh10:04:001
307185799521,4cyclictest3072003-21apt-get07:10:131
307185499522,32cyclictest3264379-21apt-get12:35:120
307185799512,38cyclictest3204607-21ssh11:09:581
307185799511,35cyclictest3130863-21apt-get09:25:121
307185799510,39cyclictest3179361-21ssh10:33:091
307185799508,27cyclictest3119470-21seq09:07:011
307185799505,3cyclictest3119764-21diskmemload09:44:211
307185799502,7cyclictest3100432-21apt-get08:20:131
307185799502,4cyclictest3198049-21apt-get11:00:121
307185799501,7cyclictest3168409-21ssh10:18:101
307185799501,7cyclictest3154922-21ssh09:59:061
307185499507,29cyclictest3119764-21diskmemload10:09:150
307185499503,5cyclictest3243263-21apt-get12:05:120
307185499502,6cyclictest3257574-21apt-get12:25:110
307185499502,22cyclictest3250044-21apt-get12:15:150
307185499501,5cyclictest3218838-21apt-get11:30:120
3071854995011,26cyclictest3119764-21diskmemload09:27:430
307185799490,5cyclictest3110704-21interrupts08:45:191
307185499492,5cyclictest3145012-21apt-get09:45:120
307185799489,24cyclictest850-21runrttasks08:43:231
307185799488,24cyclictest3119764-21diskmemload10:40:021
307185799486,26cyclictest30882612chrt07:50:111
307185799486,26cyclictest30879282chrt07:48:341
307185799482,4cyclictest3084384-21apt-get07:40:131
307185799481,9cyclictest3228275-21ssh11:43:201
307185799481,9cyclictest3196228-21ssh10:56:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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