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2026-03-17 - 11:22
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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 rackeslot8.osadl.org (updated Tue Mar 17, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3514617992523,0cyclictest0-21swapper/323:59:593
3514617992219,1cyclictest0-21swapper/322:20:003
351461799211,16cyclictest3783303-21turbostat22:40:003
3514617991916,1cyclictest0-21swapper/321:55:003
3514617991916,1cyclictest0-21swapper/319:25:003
351461799191,13cyclictest3802804-21taskset22:55:123
351461799191,13cyclictest3587043-21chrt20:05:023
351461799188,6cyclictest3866112-21turbostat23:45:003
3514617991815,1cyclictest0-21swapper/323:00:143
3514617991815,1cyclictest0-21swapper/300:40:013
3514617991814,1cyclictest0-21swapper/323:20:153
351461799181,13cyclictest3567355-21turbostat19:50:003
351461799180,10cyclictest3853155-21taskset23:35:003
351461799177,7cyclictest37325642sleep322:00:113
351461799177,7cyclictest37325642sleep322:00:113
3514617991714,1cyclictest0-21swapper/323:35:183
3514617991714,1cyclictest0-21swapper/322:05:143
3514617991714,1cyclictest0-21swapper/319:50:153
351461799171,13cyclictest3891405-21chrt00:04:373
351461799171,12cyclictest3713084-21taskset21:41:433
351461799171,12cyclictest3662761-21taskset21:04:563
351461799171,12cyclictest3638863-21taskset20:45:173
351461799171,11cyclictest3554957-21chrt19:40:123
351461799167,6cyclictest35993022sleep320:12:393
351461799165,7cyclictest37973072sleep322:50:163
3514617991613,1cyclictest0-21swapper/322:28:243
3514617991613,1cyclictest0-21swapper/320:50:163
3514617991613,1cyclictest0-21swapper/319:10:183
351461799161,12cyclictest3929306-21taskset00:33:593
351461799161,12cyclictest3903922-21chrt00:12:393
351461799161,12cyclictest3891725-21taskset00:05:093
351461799161,12cyclictest3872243-21chrt23:47:543
351461799161,12cyclictest3700365-21taskset21:31:063
351461799161,12cyclictest3630960-21chrt20:37:473
351461799161,12cyclictest3554499-21chrt19:38:083
351461799161,12cyclictest3541671-21taskset19:25:253
351461799161,11cyclictest3820917-21taskset23:05:223
351461799161,11cyclictest3732015-21taskset21:56:293
351461799161,11cyclictest3664344-21taskset21:05:163
351461799160,13cyclictest3910433-21turbostat00:20:003
351461799160,13cyclictest3656262-21chrt20:57:543
351461799160,13cyclictest0-21swapper/323:14:553
351461799160,12cyclictest3757887-21sleep22:24:553
3514617991512,1cyclictest0-21swapper/319:15:203
351461799151,12cyclictest3548023-21taskset19:31:143
351461799151,11cyclictest3922713-21taskset00:25:373
351461799151,11cyclictest3790120-21taskset22:45:023
351461799151,11cyclictest3784422-21taskset22:40:183
351461799151,11cyclictest3751161-21taskset22:10:253
351461799151,11cyclictest3751161-21taskset22:10:243
351461799151,11cyclictest3700923-21taskset21:35:053
351461799151,11cyclictest3682368-21taskset21:20:153
351461799151,11cyclictest3681519-21taskset21:17:383
351461799151,11cyclictest3669703-21taskset21:10:133
351461799151,11cyclictest3637235-21taskset20:41:553
351461799151,11cyclictest3612409-21taskset20:25:083
351461799151,11cyclictest3574187-21taskset19:55:113
351461799151,10cyclictest3688391-21chrt21:25:123
351461799150,12cyclictest3829426-21taskset23:15:163
351461799150,12cyclictest3619062-21chrt20:30:133
351461799150,11cyclictest3877709-21taskset23:50:193
351461799150,11cyclictest3846442-21taskset23:25:343
351461799141,11cyclictest3776727-21taskset22:32:323
351461799141,11cyclictest3611813-21taskset20:20:353
351461799141,11cyclictest3605576-21taskset20:17:153
351461799140,12cyclictest3592841-21chrt20:05:333
351461799140,11cyclictest3916410-21taskset00:20:373
351461799140,11cyclictest3719326-21taskset21:45:393
38208052131,9sleep23820916-21/usr/sbin/munin23:05:222
36377322121,3sleep23637766-21apt-get20:45:122
307598120,7rtkit-daemon3769540-21cat22:25:172
38726972110,2sleep00-21swapper/023:50:140
37827412111,7sleep13782905-21vmstat22:35:241
35149312110,4sleep23515044-21tune2fs19:10:142
35084302111,4sleep03508463-21apt-get19:05:110
307598110,7rtkit-daemon316-21systemd-udevd20:28:451
307598110,3rtkit-daemon3521004-21munin-node21:20:501
38916872107,1sleep03751458-21kworker/0:1+kacpid00:05:070
38270812100,7sleep13827205-21sort23:10:221
37712132100,7sleep23772103-21irqrtprio22:30:162
37609832100,2sleep13763070-21kthreadcore22:20:171
37149222101,6sleep03716502-21kthreadcore21:45:180
36357902100,3sleep23636499-21missed_timers20:40:192
307598100,6rtkit-daemon3565662-21kthreadcore19:45:181
307598100,6rtkit-daemon3256-21sendmail-mta23:23:492
307598100,6rtkit-daemon3256-21sendmail-mta21:01:091
307598100,6rtkit-daemon3256-21sendmail-mta20:00:591
307598100,5rtkit-daemon3852736-21/usr/sbin/munin23:30:242
307598100,5rtkit-daemon217-21plymouthd19:54:571
307598100,3rtkit-daemon3256-21sendmail-mta23:35:492
3916457290,1sleep00-21swapper/000:21:140
3910685291,4sleep13910718-21apt-get00:20:111
3835425290,6sleep13836569-21kthreadcore23:20:161
3793598290,7sleep13795133-21/usr/sbin/munin22:45:171
3752143290,7sleep13752965-21sed22:15:161
3745806290,1sleep13746356-21irqrtprio22:10:151
3745806290,1sleep13746356-21irqrtprio22:10:151
3727601290,6sleep13729559-21kthreadcore21:55:171
3688484290,6sleep03688624-21idleruntime21:25:140
3599973290,6sleep03600108-21/usr/sbin/munin20:15:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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