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2026-04-25 - 11:43
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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 Apr 25, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
324245621230,1sleep20-21swapper/200:23:392
30425042380,2sleep23042511-21kthreadcore22:15:182
31364162250,2sleep014-21ksoftirqd/023:15:170
2782163992422,1cyclictest0-21swapper/323:15:003
2782163992321,1cyclictest0-21swapper/322:25:173
2782163992320,1cyclictest0-21swapper/322:20:003
2782163992320,1cyclictest0-21swapper/300:09:593
2782163992219,1cyclictest0-21swapper/322:20:183
2782163992219,1cyclictest0-21swapper/321:55:003
278216399221,15cyclictest2875007-21taskset20:20:003
2782163992118,1cyclictest0-21swapper/322:45:303
278216399211,14cyclictest3025334-21taskset22:04:593
278216399202,14cyclictest3000447-21taskset21:45:563
2782163992017,1cyclictest0-21swapper/322:35:213
31086822190,16sleep23108773-21readlink22:55:242
278216399199,7cyclictest28228102sleep319:37:083
278216399192,13cyclictest3163902-21taskset23:31:113
278216399192,13cyclictest2903685-21taskset20:40:163
2782163991917,1cyclictest0-21swapper/321:45:013
2782163991916,1cyclictest0-21swapper/323:40:013
2782163991916,1cyclictest0-21swapper/321:25:193
2782163991916,1cyclictest0-21swapper/320:50:163
278216399191,14cyclictest3258341-21taskset00:34:473
278216399191,14cyclictest3111053-21chrt23:00:123
278216399191,14cyclictest3026051-21taskset22:05:163
278216399191,14cyclictest2887689-21taskset20:29:433
278216399190,13cyclictest3142122-21taskset23:20:013
29763282181,5sleep22976376-21ntpq21:30:232
278216399187,7cyclictest32033972sleep323:58:193
278216399182,13cyclictest2985943-21taskset21:39:233
278216399182,12cyclictest3226204-21taskset00:11:333
2782163991816,1cyclictest0-21swapper/323:20:013
2782163991816,1cyclictest0-21swapper/300:35:223
2782163991815,1cyclictest0-21swapper/323:50:243
2782163991815,1cyclictest0-21swapper/322:55:183
2782163991815,1cyclictest0-21swapper/321:20:203
2782163991815,1cyclictest0-21swapper/319:20:013
2782163991815,1cyclictest0-21swapper/300:25:263
2782163991814,1cyclictest0-21swapper/321:30:203
278216399181,14cyclictest2880338-21taskset20:20:213
278216399181,13cyclictest3184611-21taskset23:45:193
278216399181,13cyclictest3085909-21taskset22:40:533
278216399181,13cyclictest3085909-21taskset22:40:533
278216399181,13cyclictest3069688-21taskset22:30:223
278216399181,13cyclictest3017231-21taskset21:59:313
278216399181,13cyclictest2953932-21taskset21:16:453
278216399181,13cyclictest2947382-21taskset21:15:013
278216399181,13cyclictest2932916-21taskset21:04:473
278216399181,13cyclictest2932916-21taskset21:04:463
278216399181,13cyclictest2888176-21taskset20:30:153
278216399181,13cyclictest2855434-21sleep20:05:013
278216399181,13cyclictest2835758-21taskset19:46:363
278216399181,13cyclictest2810565-21taskset19:30:133
278216399181,12cyclictest2803667-21taskset19:24:563
278216399172,12cyclictest3125544-21taskset23:07:473
2782163991714,1cyclictest0-21swapper/323:40:173
2782163991714,1cyclictest0-21swapper/322:10:193
2782163991714,1cyclictest0-21swapper/320:10:203
278216399171,13cyclictest3233788-21taskset00:16:023
278216399171,13cyclictest2861821-21taskset20:09:333
278216399171,13cyclictest2847796-21taskset19:55:183
278216399171,13cyclictest2809770-21taskset19:25:403
278216399171,12cyclictest3149905-21taskset23:25:073
278216399171,12cyclictest2939055-21taskset21:05:543
278216399171,12cyclictest2913209-21taskset20:45:303
278216399171,12cyclictest2900387-21taskset20:36:283
278216399171,12cyclictest2842132-21taskset19:50:343
278216399171,12cyclictest2828424-21taskset19:40:203
278216399171,12cyclictest2782332-21taskset19:10:043
278216399170,13cyclictest3095347-21taskset22:50:023
2782163991614,1cyclictest0-21swapper/300:20:233
278216399161,12cyclictest3209473-21taskset00:00:193
278216399161,12cyclictest2926413-21taskset20:58:533
27819912160,2sleep30-21swapper/319:09:423
28674282141,10sleep22867467-21ntpq20:10:222
28220582141,9sleep02822095-21ntpq19:35:210
31340102139,2sleep12939398-21diskmemload23:14:591
29789142131,9sleep02979118-21hddtemp_smartct21:35:160
29354742131,9sleep12937291-21cut21:05:181
28738772136,4sleep22873916-21ntpq20:15:242
28285672131,4sleep02828606-21ntpq19:40:220
27772972131,8sleep12778971-21cut19:05:191
129998130,9rtkit-daemon3024239-21ssh22:02:080
32338082121,8sleep23233812-21ssh00:16:062
32122972121,8sleep13212083-21/usr/sbin/munin00:05:151
30620212121,3sleep0222-21plymouthd22:25:260
30237722121,8sleep23023776-21ssh22:00:422
29607352122,6sleep12960783-21ntpq21:20:201
29133572121,8sleep02913359-21sshd-session20:47:250
129998120,8rtkit-daemon3956811-21gmain23:49:161
129998120,8rtkit-daemon2788740-21munin-node19:36:091
129998120,8rtkit-daemon1000-21snmpd20:05:371
129998120,7rtkit-daemon2195379-21ntpd20:25:191
129998120,4rtkit-daemon703-21mta-sts-daemon20:18:551
129998120,2rtkit-daemon0-21swapper/120:21:261
32647652110,5sleep13264769-21ssh00:35:421
32280362110,8sleep13227666-21/usr/sbin/munin00:15:171
32278752116,2sleep03228033-21gltestperf00:15:160
30945402110,8sleep23094546-21ssh22:48:262
30716812110,8sleep23071686-21sh22:34:392
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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