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2026-07-11 - 06:14
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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 Jul 11, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40042742590,1sleep30-21swapper/320:20:173
41493262440,1sleep30-21swapper/322:00:213
3910921993330,1cyclictest0-21swapper/321:15:003
3910921993122,7cyclictest37968-21sleep22:55:003
3910921992724,1cyclictest0-21swapper/322:20:143
3910921992622,1cyclictest0-21swapper/320:00:173
1221152260,1sleep20-21swapper/223:45:192
3910921992522,1cyclictest0-21swapper/321:50:123
3910921992522,1cyclictest0-21swapper/300:00:213
3910921992421,1cyclictest0-21swapper/323:45:153
3910921992421,1cyclictest0-21swapper/323:20:173
3910921992421,1cyclictest0-21swapper/322:40:283
3910921992421,1cyclictest0-21swapper/300:15:273
391092199241,19cyclictest3938624-21turbostat19:30:003
391092199241,17cyclictest4153768-21chrt22:05:133
3910921992320,1cyclictest0-21swapper/322:00:013
3910921992320,1cyclictest0-21swapper/320:30:013
3910921992320,1cyclictest0-21swapper/300:35:003
3910921992320,1cyclictest0-21swapper/300:20:083
3910921992219,1cyclictest0-21swapper/321:20:163
3910921992219,1cyclictest0-21swapper/321:20:163
3910921992219,1cyclictest0-21swapper/321:00:083
391092199220,19cyclictest3957967-21turbostat19:49:553
3910921992118,1cyclictest0-21swapper/323:00:173
3910921992118,1cyclictest0-21swapper/322:35:143
3910921992118,1cyclictest0-21swapper/319:20:023
391092199211,17cyclictest3990004-21turbostat20:14:563
391092199211,15cyclictest4028630-21taskset20:40:013
391092199211,14cyclictest98812-21taskset23:30:253
391092199211,14cyclictest140054-21taskset23:59:563
3910921992017,1cyclictest0-21swapper/323:20:013
3910921992017,1cyclictest0-21swapper/322:20:013
391092199201,14cyclictest4098584-21taskset21:30:013
391092199201,14cyclictest4075088-21chrt21:15:133
391092199201,14cyclictest4075088-21chrt21:15:133
391092199201,14cyclictest3957729-21taskset19:42:083
391092199201,13cyclictest4047885-21taskset20:55:023
391092199201,13cyclictest3983630-21sleep20:09:553
391092199192,14cyclictest4112631-21taskset21:36:103
3910921991917,1cyclictest0-21swapper/320:30:143
3910921991916,1cyclictest0-21swapper/323:40:183
3910921991916,1cyclictest0-21swapper/321:30:173
3910921991916,1cyclictest0-21swapper/321:05:193
3910921991916,1cyclictest0-21swapper/320:40:133
3910921991916,1cyclictest0-21swapper/319:50:143
3910921991915,1cyclictest0-21swapper/300:10:163
3910921991914,3cyclictest1011432sleep323:35:113
391092199191,14cyclictest61469-21taskset23:10:003
391092199191,13cyclictest4002858-21taskset20:20:013
391092199188,7cyclictest1865822sleep300:28:073
391092199188,7cyclictest1315292sleep323:52:553
391092199181,9cyclictest3938631-21sleep19:34:553
3910921991816,1cyclictest0-21swapper/319:20:123
3910921991815,1cyclictest0-21swapper/323:00:013
3910921991815,1cyclictest0-21swapper/320:00:013
391092199181,13cyclictest4185117-21taskset22:25:103
391092199181,13cyclictest4166147-21taskset22:10:183
391092199181,13cyclictest4121014-21chrt21:42:243
391092199181,13cyclictest3917128-21taskset19:13:343
391092199181,13cyclictest28484-21taskset22:45:303
6334721712,3sleep064931-21kthreadcore23:10:180
41603982171,8sleep24160404-21ssh22:07:452
391092199172,12cyclictest4122248-21taskset21:45:083
3910921991713,1cyclictest0-21swapper/319:35:183
391092199171,13cyclictest67961-21taskset23:11:243
391092199171,12cyclictest195417-21taskset00:35:043
391092199171,12cyclictest148389-21chrt00:05:133
391092199170,14cyclictest91387-21taskset23:25:443
40440812163,9sleep04045815-21cut20:50:180
3910921991613,1cyclictest0-21swapper/320:50:163
391092199161,12cyclictest4397-21taskset22:30:233
391092199161,12cyclictest4040921-21taskset20:45:303
1700762160,1sleep10-21swapper/100:15:581
39582932151,4sleep0222-21plymouthd19:45:150
39046952141,7sleep2222-21plymouthd19:05:132
1133872141,5sleep0114147-21memory23:40:210
40099392130,10sleep04010591-21cut20:25:170
1721312131,9sleep1172297-21/usr/sbin/munin00:20:151
7972121,9sleep12596-21cut22:30:181
591642121,8sleep259212-21ntpq23:05:232
535042121,8sleep253508-21ssh23:04:432
41698082121,8sleep04170739-21irqrtprio22:15:180
41143192121,8sleep14114326-21munin-node21:40:101
40983372121,8sleep24098582-21latency_hist21:30:012
40960952121,8sleep14096132-21ntpq21:25:231
39202402120,9sleep13921056-21uname19:15:171
41801892110,7sleep14181602-21kthreadcore22:20:191
41669942111,7sleep14167106-21/usr/sbin/munin22:10:251
41460082111,7sleep14146120-21tune2fs22:00:151
41374672110,8sleep14137473-21ssh21:54:291
41040382110,8sleep04104094-21ps21:30:270
40615542113,5sleep04062239-21tr21:05:170
40273432112,6sleep24027463-21ntpq20:35:202
40161652110,9sleep24015912-21/usr/sbin/munin20:30:152
39842592110,8sleep13984703-21cut20:05:161
39774212112,5sleep23977183-21sendmail-msp20:00:132
1722982111,7sleep2171858-21/usr/sbin/munin00:20:162
1634792110,8sleep0163487-21sshd-auth00:14:250
1558272111,7sleep1155840-21latency_hist00:10:011
41676982100,3sleep0222-21plymouthd22:11:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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