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2025-12-07 - 03:50
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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 Sun Dec 07, 2025 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147598270,11rtkit-daemon651313-21ssh00:33:331
172411992320,1cyclictest0-21swapper/323:10:243
17241199231,16cyclictest371400-21taskset21:40:013
2564562212,7sleep0258301-21cut20:15:190
172411992117,1cyclictest0-21swapper/320:50:003
17241199211,15cyclictest539454-21taskset23:24:013
172411992017,1cyclictest0-21swapper/323:55:173
172411992017,1cyclictest0-21swapper/319:50:173
172411991916,1cyclictest0-21swapper/321:45:163
172411991916,1cyclictest0-21swapper/321:10:013
17241199191,15cyclictest547849-21sleep23:30:003
17241199191,14cyclictest223959-21turbostat19:49:593
17241199187,7cyclictest1932702sleep319:25:123
172411991816,1cyclictest0-21swapper/322:55:013
172411991815,1cyclictest0-21swapper/322:45:193
172411991815,1cyclictest0-21swapper/300:00:183
17241199181,13cyclictest395570-21turbostat21:55:003
17241199181,13cyclictest378143-21taskset21:42:213
17241199181,13cyclictest276833-21taskset20:30:203
17241199181,13cyclictest276833-21taskset20:30:193
17241199181,13cyclictest230421-21taskset19:55:133
17241199181,12cyclictest193006-21taskset19:24:563
17241199180,13cyclictest531559-21taskset23:19:553
17241199180,13cyclictest499652-21taskset22:59:553
17241199180,13cyclictest427789-21chrt22:14:563
17241199178,6cyclictest5870882sleep323:53:223
172411991714,1cyclictest0-21swapper/323:05:133
172411991714,1cyclictest0-21swapper/320:55:183
172411991714,1cyclictest0-21swapper/320:50:193
172411991714,1cyclictest0-21swapper/300:20:013
17241199171,13cyclictest466896-21chrt22:38:033
17241199171,13cyclictest466896-21chrt22:38:033
17241199171,13cyclictest360647-21taskset21:30:233
17241199171,13cyclictest281370-21taskset20:35:163
17241199171,12cyclictest565097-21taskset23:40:153
17241199171,12cyclictest551908-21taskset23:30:173
17241199171,12cyclictest475770-21turbostat22:45:013
17241199171,12cyclictest434679-21chrt22:17:233
17241199171,12cyclictest332244-21taskset21:15:173
17241199171,12cyclictest331105-21taskset21:14:563
17241199171,12cyclictest310920-21taskset21:00:133
17241199171,12cyclictest242523-21turbostat20:05:003
17241199170,13cyclictest458888-21chrt22:32:583
172411991613,1cyclictest0-21swapper/321:58:113
172411991613,1cyclictest0-21swapper/319:37:003
172411991613,1cyclictest0-21swapper/319:15:033
17241199161,12cyclictest659100-21taskset00:38:023
17241199161,12cyclictest634091-21taskset00:20:313
17241199161,12cyclictest562046-21taskset23:35:503
17241199161,12cyclictest449965-21taskset22:25:413
17241199161,12cyclictest419602-21chrt22:09:383
17241199161,12cyclictest347588-21taskset21:25:153
17241199161,12cyclictest291995-21taskset20:44:553
17241199161,12cyclictest273328-21chrt20:28:483
17241199161,12cyclictest213521-21taskset19:40:193
17241199161,12cyclictest205397-21turbostat19:35:003
17241199161,12cyclictest178509-21chrt19:14:383
17241199161,11cyclictest604377-21chrt00:05:093
17241199161,11cyclictest500878-21taskset23:00:163
17241199160,12cyclictest649989-21taskset00:30:243
17241199160,12cyclictest403830-21taskset22:00:013
17241199160,11cyclictest255086-21taskset20:15:023
147598160,7rtkit-daemon387578-21cron21:49:592
5801002152,4sleep2580122-21apt-get23:50:132
172411991512,1cyclictest0-21swapper/323:50:003
172411991512,1cyclictest0-21swapper/320:05:183
172411991512,1cyclictest0-21swapper/300:25:203
17241199151,11cyclictest618102-21taskset00:10:333
17241199151,11cyclictest436581-21taskset22:20:173
17241199150,12cyclictest339507-21chrt21:20:133
17241199150,12cyclictest266937-21chrt20:21:103
17241199150,12cyclictest250258-21taskset20:10:203
17241199140,12cyclictest172458-21taskset19:10:013
4584022131,9sleep1458409-21ssh22:31:571
147598130,9rtkit-daemon744-21runrttasks22:13:182
5170222121,8sleep2518060-21grep23:10:182
2862672121,7sleep2286357-21/usr/sbin/munin20:40:172
1822052120,2sleep10-21swapper/119:15:171
147598120,8rtkit-daemon22110-21packagekitd20:42:521
147598120,1rtkit-daemon0-21swapper/020:08:270
6260512110,7sleep1626059-21ssh00:15:291
5774962111,7sleep2577754-21sed23:45:252
4358022110,8sleep2435962-21latency_hist22:20:002
3469872110,8sleep2346995-21ssh21:24:462
147598110,7rtkit-daemon729-21lldpd23:26:481
147598110,7rtkit-daemon515-21gmain19:20:160
147598110,7rtkit-daemon214-21plymouthd23:58:000
147598110,6rtkit-daemon539883-21munin-run23:25:001
147598110,4rtkit-daemon1540-21sendmail-mta22:23:390
147598110,3rtkit-daemon515-21gmain20:23:320
6587582102,6sleep2619072-21kworker/u16:4+xprtiod00:37:102
6112852102,4sleep2562076-21kworker/u16:1+xprtiod00:08:212
5940922100,7sleep1594098-21ssh23:56:061
5702542100,2sleep1570262-21ssh23:41:141
5531792100,1sleep0553317-21/usr/sbin/munin23:30:190
5240012101,2sleep00-21swapper/023:15:170
4102302100,3sleep1410236-21ssh22:02:011
3932872100,7sleep1393491-21unixbench-2d21:50:261
2984822100,2sleep10-21swapper/120:50:141
2127012100,2sleep2213520-21kthreadcore19:40:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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