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2026-06-02 - 12:36
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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 Jun 02, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2587616992522,1cyclictest0-21swapper/319:40:013
2587616992421,1cyclictest0-21swapper/323:35:133
2587616992321,1cyclictest0-21swapper/321:10:003
2587616992320,1cyclictest0-21swapper/323:50:003
2587616992320,1cyclictest0-21swapper/300:10:153
2587616992219,1cyclictest0-21swapper/300:40:003
2587616992118,1cyclictest0-21swapper/321:30:263
258761699211,15cyclictest2960833-21chrt23:30:133
258761699202,14cyclictest2698277-21taskset20:33:483
2587616992017,1cyclictest0-21swapper/320:46:293
2587616992017,1cyclictest0-21swapper/319:20:003
258761699201,5cyclictest2766575-21turbostat21:25:003
258761699198,8cyclictest29298482sleep323:10:133
2587616991916,1cyclictest0-21swapper/323:55:173
2587616991916,1cyclictest0-21swapper/323:20:183
2587616991916,1cyclictest0-21swapper/323:00:013
2587616991916,1cyclictest0-21swapper/322:37:563
2587616991916,1cyclictest0-21swapper/322:13:493
2587616991916,1cyclictest0-21swapper/321:35:183
2587616991916,1cyclictest0-21swapper/321:17:333
2587616991916,1cyclictest0-21swapper/300:20:073
258761699191,14cyclictest2943879-21taskset23:16:503
2587616991910,6cyclictest25936802sleep319:11:143
258761699182,13cyclictest2805600-21taskset21:50:013
2587616991815,1cyclictest0-21swapper/323:09:173
2587616991815,1cyclictest0-21swapper/322:55:123
2587616991815,1cyclictest0-21swapper/322:50:173
2587616991815,1cyclictest0-21swapper/322:00:003
2587616991815,1cyclictest0-21swapper/321:10:273
2587616991815,1cyclictest0-21swapper/320:20:203
2587616991815,1cyclictest0-21swapper/319:45:003
2587616991814,1cyclictest0-21swapper/320:25:163
258761699181,13cyclictest3037173-21taskset00:18:003
258761699181,13cyclictest2998404-21chrt23:52:533
258761699181,13cyclictest2982123-21taskset23:40:283
258761699181,13cyclictest2958433-21taskset23:25:243
258761699181,13cyclictest2873637-21taskset22:30:353
258761699181,13cyclictest2865851-21taskset22:25:383
258761699181,13cyclictest2851239-21taskset22:18:043
258761699181,13cyclictest2813634-21taskset21:55:153
258761699181,13cyclictest2723845-21taskset20:53:493
258761699181,13cyclictest2653445-21taskset19:58:163
258761699181,13cyclictest2615070-21taskset19:28:053
258761699181,12cyclictest3015000-21taskset00:05:003
258761699180,13cyclictest2828898-21taskset22:05:013
2587616991714,1cyclictest0-21swapper/322:40:163
258761699171,13cyclictest3059576-21taskset00:30:273
258761699171,13cyclictest3015042-21taskset00:05:053
258761699171,13cyclictest2858737-21taskset22:22:173
258761699171,13cyclictest2802625-21taskset21:45:213
258761699171,13cyclictest2726354-21taskset20:55:203
258761699171,13cyclictest2705077-21taskset20:40:143
258761699171,13cyclictest2660444-21taskset20:05:143
258761699171,13cyclictest2659781-21taskset20:02:323
258761699171,12cyclictest2773182-21taskset21:26:523
258761699171,12cyclictest2730577-21taskset21:00:023
258761699171,12cyclictest2666672-21taskset20:10:103
258761699171,12cyclictest2602777-21taskset19:20:033
6881160,6low-memory-moni3012541-21ntpq00:00:202
2587616991614,1cyclictest0-21swapper/319:30:183
2587616991613,1cyclictest0-21swapper/320:35:183
258761699161,12cyclictest3051931-21taskset00:25:383
258761699161,12cyclictest2796658-21taskset21:42:233
258761699161,12cyclictest2678821-21taskset20:15:443
258761699161,11cyclictest2897122-21taskset22:46:063
258761699161,11cyclictest2641138-21chrt19:50:133
30064942150,8sleep13006498-21ssh23:58:431
28914272151,11sleep12891814-21cut22:45:171
258761699150,12cyclictest2634733-21taskset19:45:053
28888252140,4sleep02889072-21awk22:40:270
6881130,2low-memory-moni3821954-21fwupd23:59:352
29946532131,3sleep00-21swapper/023:50:200
29453242130,10sleep22945361-21ssh23:20:112
28739022131,9sleep12873908-21ssh22:31:261
28457072130,10sleep12846619-21tr22:15:181
26412952131,9sleep02641408-21/usr/sbin/munin19:50:160
25871472130,2sleep30-21swapper/319:05:283
29303472120,9sleep02931280-21irqstats23:10:170
28979632121,9sleep00-21swapper/022:48:370
28067672120,9sleep22807691-21grep21:50:172
27489632120,9sleep02749074-21sed21:10:250
27379352120,9sleep22738798-21grep21:05:192
27359862121,8sleep22736098-21grep21:00:262
26667102120,9sleep12666862-21df20:10:141
26041882120,9sleep02605294-21grep19:20:160
26025802121,8sleep12602562-21sendmail-msp19:20:011
30162872110,8sleep23017221-21cat00:05:172
29899542110,4sleep21000-21snmpd23:45:532
28536732110,8sleep12855263-21grep22:20:201
25932952114,4sleep02593506-21sed19:10:260
30542542100,3sleep03055193-21irqstats00:30:170
30513482101,2sleep10-21swapper/100:25:241
29968822101,6sleep22996974-21ntpq23:50:212
29354262101,6sleep22935665-21grep23:10:282
28807212100,7sleep12880769-21ld22:35:221
28445152101,6sleep02844521-21ssh22:15:130
28433462100,1sleep00-21swapper/022:12:410
27884242100,7sleep12788430-21ssh21:35:571
27763962106,2sleep20-21swapper/221:30:162
27294672100,8sleep12729543-21ps20:55:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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