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2026-06-23 - 07:04
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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 23, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32647462430,1sleep20-21swapper/200:30:172
2793484992925,1cyclictest0-21swapper/321:35:003
2793484992824,1cyclictest0-21swapper/322:00:113
2793484992511,9cyclictest3278988-21turbostat00:40:003
2793484992421,1cyclictest0-21swapper/323:20:123
279348499230,19cyclictest2929950-21turbostat20:55:013
2793484992220,1cyclictest0-21swapper/322:25:013
2793484992219,1cyclictest0-21swapper/321:55:003
279348499221,16cyclictest3247899-21chrt00:20:113
279348499221,15cyclictest2800119-21taskset19:15:013
32163102210,1sleep1321rcuc/100:00:021
2793484992118,1cyclictest0-21swapper/323:40:173
2793484992118,1cyclictest0-21swapper/321:15:253
279348499204,6cyclictest2980532-21turbostat21:30:003
2793484992017,1cyclictest0-21swapper/319:55:143
2793484992017,1cyclictest0-21swapper/300:25:153
279348499201,13cyclictest2936559-21taskset21:00:023
2793484992010,7cyclictest3142652-21taskset23:10:193
2793484991916,1cyclictest0-21swapper/322:10:163
2793484991916,1cyclictest0-21swapper/320:45:153
2793484991916,1cyclictest0-21swapper/320:20:173
2793484991916,1cyclictest0-21swapper/320:10:013
2793484991916,1cyclictest0-21swapper/320:00:183
2793484991916,1cyclictest0-21swapper/319:20:063
279348499191,14cyclictest3222311-21taskset00:00:323
279348499191,14cyclictest3167960-21taskset23:27:123
279348499191,14cyclictest3122321-21taskset23:00:133
279348499191,14cyclictest3114833-21taskset22:55:163
279348499191,14cyclictest2942998-21chrt21:05:143
279348499191,13cyclictest3224283-21chrt00:05:133
279348499191,13cyclictest3224283-21chrt00:05:123
279348499190,17cyclictest2821153-21turbostat19:34:553
2793484991816,1cyclictest0-21swapper/320:10:143
2793484991815,1cyclictest0-21swapper/323:30:163
2793484991815,1cyclictest0-21swapper/322:05:183
279348499181,13cyclictest3265604-21taskset00:30:183
279348499181,13cyclictest3246359-21taskset00:16:523
279348499181,13cyclictest3238073-21taskset00:10:453
279348499181,13cyclictest3132172-21taskset23:05:193
279348499181,13cyclictest3105080-21taskset22:46:543
279348499181,13cyclictest3090734-21taskset22:40:043
279348499181,13cyclictest3010135-21taskset21:45:243
279348499181,13cyclictest3003615-21taskset21:43:393
279348499181,13cyclictest2956469-21taskset21:13:373
279348499181,13cyclictest2935998-21taskset20:56:203
279348499181,13cyclictest2904301-21taskset20:34:553
279348499181,13cyclictest2891864-21chrt20:25:133
28968142171,9sleep22896952-21/usr/sbin/munin20:25:212
2793484991714,1cyclictest0-21swapper/323:55:193
2793484991714,1cyclictest0-21swapper/322:30:253
2793484991714,1cyclictest0-21swapper/322:25:503
2793484991714,1cyclictest0-21swapper/321:20:123
279348499171,13cyclictest3199244-21taskset23:47:003
279348499171,13cyclictest3112433-21taskset22:50:343
279348499171,13cyclictest3089053-21taskset22:36:153
279348499171,13cyclictest2996047-21taskset21:39:303
279348499171,13cyclictest2799480-21taskset19:10:523
279348499171,12cyclictest3177097-21taskset23:35:093
279348499171,12cyclictest3145841-21chrt23:15:133
279348499171,12cyclictest3057444-21taskset22:15:393
279348499171,12cyclictest3057444-21taskset22:15:383
279348499171,12cyclictest2848433-21taskset19:50:173
279348499171,12cyclictest2832996-21chrt19:35:233
29384142161,7sleep02940165-21kthreadcore21:00:190
2793484991613,1cyclictest0-21swapper/319:40:123
279348499161,12cyclictest3020089-21taskset21:55:063
279348499161,12cyclictest2911041-21chrt20:40:133
279348499161,12cyclictest2904572-21taskset20:35:073
279348499161,12cyclictest2846419-21taskset19:46:013
279348499161,11cyclictest3200688-21taskset23:50:133
279348499161,11cyclictest2879089-21chrt20:15:113
279348499161,11cyclictest2815033-21chrt19:25:123
31075042140,11sleep03108431-21kthreadcore22:50:160
28533932141,10sleep00-21swapper/019:55:120
32163442131,9sleep23216061-21sendmail-msp00:00:082
31603032139,2sleep03138335-21kworker/0:2+kacpid23:22:450
29952482131,9sleep12995252-21ssh21:37:211
31901952120,1sleep20-21swapper/223:40:232
31849482121,2sleep03184985-21apt-get23:40:130
31045792120,10sleep03104585-21ssh22:45:360
30755612121,8sleep13076383-21sed22:30:171
27873312120,6sleep0222-21plymouthd19:05:140
31675712110,8sleep03167577-21ssh23:26:050
31541562110,7sleep13154767-21sed23:20:161
31312052111,3sleep20-21swapper/223:05:192
31134162110,5sleep20-21swapper/222:53:232
29808782111,7sleep02981037-21df_inode21:30:140
31752702100,2sleep1222-21plymouthd23:30:481
31509062100,1sleep20-21swapper/223:15:192
31199402100,7sleep13120174-21ssh22:55:281
31040062100,3sleep13104039-21ssh22:45:251
30741802102,5sleep0222-21plymouthd22:28:200
30656962100,4sleep00-21swapper/022:21:460
30165432100,7sleep23017374-21/usr/sbin/munin21:50:202
30109662100,1sleep10-21swapper/121:47:161
29573362101,5sleep22957342-21ssh21:15:122
29362152100,2sleep00-21swapper/020:59:060
28988482103,5sleep12899666-21kthreadcore20:30:181
28213892102,4sleep12821422-21apt-get19:30:111
28140412100,7sleep12814245-21sed19:20:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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