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2026-04-01 - 00:26
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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 Mar 31, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4144103992623,1cyclictest0-21swapper/311:40:243
4144103992623,1cyclictest0-21swapper/310:05:283
4144103992421,1cyclictest0-21swapper/310:50:203
4144103992421,1cyclictest0-21swapper/310:30:003
4144103992421,1cyclictest0-21swapper/310:10:143
4144103992421,1cyclictest0-21swapper/309:00:253
4144103992320,1cyclictest0-21swapper/312:15:133
4144103992320,1cyclictest0-21swapper/310:35:003
4144103992219,1cyclictest0-21swapper/312:10:263
4144103992219,1cyclictest0-21swapper/311:05:183
4144103992219,1cyclictest0-21swapper/310:45:223
4144103992219,1cyclictest0-21swapper/310:00:243
4144103992219,1cyclictest0-21swapper/309:45:193
4144103992219,1cyclictest0-21swapper/309:40:263
4144103992219,1cyclictest0-21swapper/308:40:003
414410399212,15cyclictest305928-21taskset11:17:253
4144103992119,1cyclictest0-21swapper/311:35:203
4144103992119,1cyclictest0-21swapper/309:29:223
4144103992118,1cyclictest0-21swapper/311:30:403
4144103992118,1cyclictest0-21swapper/307:50:013
4144103992118,1cyclictest0-21swapper/307:15:003
4144103992018,1cyclictest0-21swapper/308:00:163
4144103992017,1cyclictest0-21swapper/312:24:133
4144103992017,1cyclictest0-21swapper/310:15:273
4144103992017,1cyclictest0-21swapper/309:59:123
4144103992017,1cyclictest0-21swapper/308:20:233
4144103992017,1cyclictest0-21swapper/308:00:013
4144103991917,1cyclictest0-21swapper/312:00:033
4144103991917,1cyclictest0-21swapper/311:50:203
4144103991916,1cyclictest0-21swapper/311:29:433
4144103991916,1cyclictest0-21swapper/310:56:593
4144103991916,1cyclictest0-21swapper/308:25:233
4144103991916,1cyclictest0-21swapper/307:42:243
4144103991916,1cyclictest0-21swapper/307:35:003
414410399191,14cyclictest141761-21taskset09:30:183
4144103991816,1cyclictest0-21swapper/309:23:143
4144103991816,1cyclictest0-21swapper/309:05:183
4144103991815,1cyclictest0-21swapper/312:35:193
4144103991815,1cyclictest0-21swapper/309:50:193
4144103991815,1cyclictest0-21swapper/308:15:303
4144103991815,1cyclictest0-21swapper/307:50:133
4144103991815,1cyclictest0-21swapper/307:35:163
4144103991815,1cyclictest0-21swapper/307:20:133
414410399181,14cyclictest377377-21taskset12:05:173
414410399181,14cyclictest298991-21taskset11:14:463
414410399181,13cyclictest87318-21taskset08:55:133
414410399181,13cyclictest85998-21taskset08:50:213
414410399181,13cyclictest85998-21taskset08:50:213
414410399181,13cyclictest407594-21taskset12:25:023
414410399181,13cyclictest313494-21taskset11:21:393
414410399181,13cyclictest251740-21taskset10:42:063
414410399181,13cyclictest150344-21taskset09:35:223
414410399180,14cyclictest217174-21taskset10:20:163
2449722188,7sleep1245037-21sendmail-msp10:40:001
41443022172,5sleep04144298-21apt-get07:10:130
414410399176,8cyclictest4150476-21sleep07:19:563
4144103991715,1cyclictest0-21swapper/308:15:013
4144103991714,1cyclictest0-21swapper/311:45:143
4144103991714,1cyclictest0-21swapper/311:00:233
4144103991714,1cyclictest0-21swapper/309:10:173
4144103991714,1cyclictest0-21swapper/308:40:123
4144103991714,1cyclictest0-21swapper/308:05:233
414410399171,13cyclictest74525-21taskset08:45:163
414410399171,12cyclictest4165642-21taskset07:25:063
414410399171,12cyclictest415432-21chrt12:30:103
41439392171,12sleep04143978-21/usr/sbin/munin07:10:010
4144103991614,1cyclictest0-21swapper/307:10:013
414410399161,12cyclictest361661-21chrt11:55:153
414410399161,12cyclictest243844-21taskset10:36:293
414410399161,12cyclictest121519-21chrt09:19:593
414410399161,11cyclictest60404-21chrt08:30:253
129998150,11rtkit-daemon86671-21seq08:52:502
129998150,11rtkit-daemon86671-21seq08:52:492
129998150,10rtkit-daemon406436-21ssh12:22:240
1193882152,4sleep2119424-21ntpq09:15:212
41931542141,3sleep21059-21kthreadcore07:45:192
1918752148,3sleep20-21swapper/210:05:182
129998140,9rtkit-daemon246241-21irqcore10:40:172
129998140,7rtkit-daemon167966-21ls09:50:010
129998140,6rtkit-daemon44-21ksoftirqd/209:24:552
129998140,10rtkit-daemon376400-21ssh12:04:371
4168262130,10sleep0418184-21tr12:30:170
2967572130,3sleep2296899-21ssh11:10:212
129998130,9rtkit-daemon228984-21ssh10:27:442
129998130,5rtkit-daemon34747-21ntpq08:10:221
3531732120,1sleep00-21swapper/011:49:440
2744802120,2sleep2431ktimers/210:55:392
2609292121,8sleep1261132-21idleruntime10:50:151
1504962121,8sleep2150604-21/usr/sbin/munin09:35:272
129998120,8rtkit-daemon74082-21/usr/sbin/munin08:45:012
129998120,8rtkit-daemon175525-21ssh09:54:380
129998120,2rtkit-daemon222-21plymouthd07:16:511
732002110,7sleep073229-21ld08:40:240
4305532110,8sleep2430679-21grep12:40:002
4076902112,5sleep1407683-21apt-get12:25:121
3881062110,8sleep1389612-21cat12:10:211
3598102110,8sleep2359814-21ssh11:51:212
1899272110,8sleep1189933-21ssh10:01:351
129998110,7rtkit-daemon343449-21cat11:40:212
129998110,7rtkit-daemon222-21plymouthd11:48:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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