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2026-05-26 - 06:22
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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 May 26, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2768945992824,1cyclictest0-21swapper/319:15:013
2768945992623,1cyclictest0-21swapper/319:25:163
2768945992320,1cyclictest0-21swapper/321:05:013
2768945992320,1cyclictest0-21swapper/320:20:273
2768945992320,1cyclictest0-21swapper/320:20:273
2768945992219,1cyclictest0-21swapper/322:20:123
2768945992219,1cyclictest0-21swapper/320:50:143
2768945992118,1cyclictest0-21swapper/323:40:003
276894599211,15cyclictest3205782-21chrt00:05:243
276894599211,15cyclictest3166375-21taskset23:40:223
276894599211,15cyclictest3145018-21turbostat23:29:593
276894599211,15cyclictest3097734-21turbostat23:00:013
32544892200,9sleep13254494-21sh00:37:501
2768945992017,1cyclictest0-21swapper/322:05:223
2768945992017,1cyclictest0-21swapper/322:00:183
2768945992017,1cyclictest0-21swapper/322:00:183
2768945992017,1cyclictest0-21swapper/321:20:293
2768945992017,1cyclictest0-21swapper/320:40:013
276894599201,15cyclictest3088371-21taskset22:51:023
276894599201,13cyclictest2803036-21taskset19:35:003
276894599199,7cyclictest29957872sleep321:55:143
276894599199,7cyclictest29957872sleep321:55:143
276894599199,7cyclictest28558162sleep320:15:193
2768945991917,1cyclictest0-21swapper/322:20:003
2768945991917,0cyclictest0-21swapper/323:00:063
2768945991916,1cyclictest0-21swapper/322:40:213
276894599191,14cyclictest3168847-21taskset23:45:033
276894599191,14cyclictest3168847-21taskset23:45:033
276894599191,14cyclictest2828603-21turbostat19:55:003
276894599182,12cyclictest2872420-21taskset20:25:253
2768945991816,0cyclictest0-21swapper/321:20:013
2768945991815,1cyclictest0-21swapper/322:30:173
2768945991815,1cyclictest0-21swapper/320:55:183
2768945991815,1cyclictest0-21swapper/300:35:163
276894599181,14cyclictest3238803-21taskset00:27:563
276894599181,14cyclictest2994086-21taskset21:51:203
276894599181,14cyclictest2892760-21taskset20:45:053
276894599181,13cyclictest3230893-21taskset00:22:483
276894599181,13cyclictest3215796-21taskset00:14:503
276894599181,13cyclictest3191238-21taskset23:57:223
276894599181,13cyclictest3152671-21taskset23:34:373
276894599181,13cyclictest3127997-21taskset23:16:483
276894599181,13cyclictest3119933-21taskset23:11:233
276894599181,13cyclictest3024797-21taskset22:10:253
276894599181,13cyclictest2948455-21chrt21:25:143
276894599181,13cyclictest2932304-21taskset21:14:563
276894599181,13cyclictest2892159-21taskset20:41:043
276894599181,13cyclictest2875625-21taskset20:30:173
276894599181,13cyclictest2848082-21chrt20:10:133
276894599181,13cyclictest2847448-21taskset20:05:443
276894599181,13cyclictest2841038-21taskset20:00:433
276894599181,13cyclictest2789943-21taskset19:21:423
276894599181,13cyclictest2783454-21taskset19:15:293
276894599181,12cyclictest2918316-21taskset21:05:023
28596182174,10sleep02859669-21/usr/sbin/munin20:15:240
276894599177,7cyclictest30651022sleep322:37:003
2768945991714,1cyclictest0-21swapper/321:30:183
2768945991714,1cyclictest0-21swapper/300:30:173
276894599171,13cyclictest3081584-21taskset22:48:583
276894599171,13cyclictest2979970-21taskset21:45:113
276894599171,13cyclictest2978082-21taskset21:40:463
276894599171,13cyclictest2970953-21taskset21:37:563
276894599171,13cyclictest2834814-21taskset19:58:223
276894599171,13cyclictest2815531-21taskset19:41:543
276894599171,13cyclictest2809280-21taskset19:38:543
276894599171,12cyclictest3216110-21taskset00:15:063
276894599171,12cyclictest3197877-21taskset00:00:233
276894599171,12cyclictest3105865-21taskset23:05:103
276894599171,12cyclictest3049040-21taskset22:26:013
30255672161,8sleep13025572-21sh22:11:241
2768945991614,1cyclictest0-21swapper/323:20:273
276894599161,12cyclictest3176831-21taskset23:50:123
276894599161,12cyclictest2816503-21taskset19:45:153
31455122152,10sleep03145542-21/usr/sbin/munin23:30:140
27685072150,2sleep30-21swapper/319:06:203
32058242141,10sleep03205952-21python300:05:260
31484372141,10sleep13150290-21tr23:30:191
30482772141,3sleep23048316-21ntpq22:25:242
31842442131,2sleep00-21swapper/023:54:470
30610362130,9sleep13062713-21tr22:35:181
30022252138,3sleep03000225-21kworker/0:0+kacpi_notify21:57:080
30022252138,3sleep03000225-21kworker/0:0+kacpi_notify21:57:080
29486382131,8sleep12948411-21/usr/sbin/munin21:25:171
28797062130,2sleep1222-21plymouthd20:35:011
28027712135,3sleep2431ktimers/219:32:202
32136262120,3sleep03213708-21ps00:10:230
29713682120,3sleep22971376-21ssh21:39:012
29239182121,8sleep02924069-21vmstat21:05:280
29016662120,9sleep02902870-21cut20:50:200
28430472121,8sleep12844207-21grep20:05:181
32413292111,6sleep23242749-21kthreadcore00:30:182
31917682111,1sleep10-21swapper/123:58:481
31599802110,8sleep13159988-21ssh23:38:041
31294972110,8sleep03129272-21sendmail-msp23:20:030
30422862110,8sleep23042290-21ssh22:24:042
29943582110,8sleep02994360-21ssh21:52:100
29283522110,7sleep22929853-21cat21:10:192
28799122110,3sleep00-21swapper/020:35:130
28723362110,8sleep12872376-21ntpq20:25:231
28278912111,7sleep02828146-21awk19:50:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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