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2025-12-13 - 10:07
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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 Sat Dec 13, 2025 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3243555992421,1cyclictest0-21swapper/319:44:593
3243555992219,1cyclictest0-21swapper/321:10:153
3243555991916,1cyclictest0-21swapper/322:05:003
324355599191,13cyclictest3532916-21taskset23:00:123
324355599191,13cyclictest3357607-21turbostat20:40:003
34779112180,8sleep03479200-21cut22:15:130
3243555991815,1cyclictest0-21swapper/319:15:023
35214482170,7sleep134-21ksoftirqd/122:50:111
3243555991714,1cyclictest0-21swapper/320:35:013
3243555991714,1cyclictest0-21swapper/319:50:163
3243555991714,1cyclictest0-21swapper/319:25:013
324355599171,12cyclictest3488243-21taskset22:20:243
324355599171,12cyclictest3362333-21chrt20:40:193
324355599171,12cyclictest3362333-21chrt20:40:183
324355599171,12cyclictest3258000-21taskset19:19:563
36200502160,8sleep03620120-21tr00:10:100
3243555991615,0cyclictest0-21swapper/321:55:003
3243555991613,1cyclictest0-21swapper/323:45:183
3243555991613,1cyclictest0-21swapper/321:40:123
3243555991613,1cyclictest0-21swapper/300:15:143
324355599161,12cyclictest3638181-21taskset00:21:413
324355599161,12cyclictest3545019-21taskset23:09:563
324355599161,12cyclictest3501838-21taskset22:35:143
324355599161,12cyclictest3495238-21chrt22:30:063
324355599161,12cyclictest3426119-21taskset21:33:123
324355599161,12cyclictest3407612-21chrt21:19:573
324355599161,12cyclictest3338646-21taskset20:20:553
324355599161,12cyclictest3326507-21chrt20:15:053
324355599161,11cyclictest3413632-21taskset21:21:543
324355599160,12cyclictest3379813-21taskset20:55:173
324355599157,5cyclictest33074092sleep319:56:403
3243555991513,1cyclictest0-21swapper/322:55:133
3243555991513,1cyclictest0-21swapper/322:55:133
3243555991513,1cyclictest0-21swapper/322:45:013
3243555991513,1cyclictest0-21swapper/321:27:563
3243555991512,1cyclictest0-21swapper/323:25:233
3243555991512,1cyclictest0-21swapper/321:48:393
3243555991512,1cyclictest0-21swapper/321:35:133
3243555991512,1cyclictest0-21swapper/320:51:143
3243555991512,1cyclictest0-21swapper/319:30:183
3243555991512,1cyclictest0-21swapper/300:35:243
3243555991512,1cyclictest0-21swapper/300:10:513
324355599151,11cyclictest3650920-21turbostat00:35:003
324355599151,11cyclictest3613796-21taskset00:05:073
324355599151,11cyclictest3581577-21taskset23:35:213
324355599151,11cyclictest3570196-21chrt23:30:093
324355599151,11cyclictest3557726-21taskset23:20:073
324355599151,11cyclictest3557253-21taskset23:17:223
324355599151,11cyclictest3470397-21chrt22:10:063
324355599151,11cyclictest3394832-21taskset21:05:503
324355599151,11cyclictest3388782-21taskset21:02:433
324355599151,11cyclictest3369756-21taskset20:46:003
324355599151,11cyclictest3345177-21turbostat20:30:003
324355599151,11cyclictest3314118-21taskset20:05:053
324355599151,11cyclictest3281930-21taskset19:35:183
324355599151,11cyclictest3270111-21taskset19:25:573
324355599150,9cyclictest3463699-21sleep22:09:553
324355599150,12cyclictest3638961-21taskset00:25:103
324355599150,12cyclictest3606535-21chrt23:55:173
324355599150,12cyclictest3320505-21taskset20:10:133
324355599150,12cyclictest3313031-21taskset20:00:233
324355599150,11cyclictest3600630-21taskset23:50:233
324355599150,11cyclictest3476593-21taskset22:15:073
307598150,10rtkit-daemon3282870-21munin-run19:40:010
324355599143,8cyclictest34514692sleep321:55:093
3243555991412,1cyclictest0-21swapper/322:50:123
3243555991411,1cyclictest0-21swapper/319:45:063
324355599141,10cyclictest3550887-21taskset23:10:293
324355599140,11cyclictest3607531-21chrt00:00:053
324355599140,11cyclictest3519824-21taskset22:45:203
324355599140,11cyclictest3491408-21taskset22:25:123
33950762139,2sleep03230232-21kworker/0:1+kacpid21:09:010
324355599131,10cyclictest3588220-21taskset23:40:423
36252072121,8sleep13625299-21switchtime00:10:191
307598120,7rtkit-daemon3256-21sendmail-mta22:03:451
35031952110,1sleep10-21swapper/122:35:161
307598110,7rtkit-daemon3256-21sendmail-mta20:25:171
307598110,5rtkit-daemon217-21plymouthd19:18:520
307598110,3rtkit-daemon3249874-21munin-node21:44:071
35355252100,1sleep03537682-21kthreadcore23:00:180
34013712101,6sleep23401375-21cron21:15:012
33132112100,7sleep03313337-21smartctl20:02:260
32959892101,7sleep03296926-21irqstats19:50:150
307598100,6rtkit-daemon714-21snmpd23:41:471
307598100,6rtkit-daemon3424906-21kthreadcore21:30:171
307598100,6rtkit-daemon3351218-21runrttasks20:33:011
307598100,6rtkit-daemon3256-21sendmail-mta22:19:161
307598100,6rtkit-daemon3256-21sendmail-mta21:21:301
307598100,6rtkit-daemon3256-21sendmail-mta19:30:010
307598100,6rtkit-daemon3249874-21munin-node23:30:091
307598100,6rtkit-daemon3249874-21munin-node21:45:501
307598100,6rtkit-daemon316-21systemd-udevd20:49:431
307598100,5rtkit-daemon3237564-21apt-get19:05:070
307598100,4rtkit-daemon3319036-21memory20:05:161
3601242292,4sleep13601275-21apt-get23:55:081
3496936290,6sleep23498988-21cut22:30:182
3484389290,6sleep13486429-21kthreadcore22:20:201
3472748290,6sleep13474803-21kthreadcore22:10:141
3381835290,1sleep10-21swapper/120:55:201
3346849290,6sleep23348767-21kthreadcore20:30:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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