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2026-05-01 - 09:03

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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  Phytec
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot5s.osadl.org (updated Fri May 01, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3892032995237,12cyclictest231ktimers/122:00:121
3892032995237,12cyclictest231ktimers/122:00:121
3892032995041,5cyclictest3979113-21munin-plugin-st23:20:001
3892040994432,7cyclictest0-21swapper/322:19:593
389204099421,9cyclictest3922447-21/usr/sbin/munin20:35:173
389204099421,8cyclictest3976236-21/usr/sbin/munin23:10:173
3892040994212,23cyclictest0-21swapper/320:15:163
389204099421,10cyclictest3983962-21cron23:32:003
389204099411,8cyclictest3985183-21/usr/sbin/munin23:35:243
389204099411,8cyclictest3980421-21grep23:20:253
389204099411,12cyclictest3931550-21grep21:00:263
389204099411,10cyclictest3981214-21cut23:25:153
389204099410,8cyclictest3993001-21apt-get00:00:143
3892027994131,6cyclictest3909162-21taskset19:55:250
389204099408,27cyclictest3904038-21unixbench_multi19:40:263
389204099408,27cyclictest3904038-21unixbench_multi19:40:263
3892040994029,8cyclictest391ktimers/319:50:113
389204099402,5cyclictest4004983-21cron00:36:003
3892040994020,14cyclictest0-21swapper/322:05:233
3892040994020,14cyclictest0-21swapper/322:05:233
389204099401,9cyclictest3942821-21/usr/sbin/munin21:35:143
389204099401,8cyclictest3898515-21/usr/sbin/munin19:25:233
389204099401,8cyclictest3898515-21/usr/sbin/munin19:25:233
389204099401,8cyclictest3892320-21/usr/sbin/munin19:10:163
389204099401,7cyclictest3967340-21/usr/sbin/munin22:45:173
389204099401,7cyclictest3967340-21/usr/sbin/munin22:45:163
3892032994033,5cyclictest3973033-21kworker/u8:0+events_unbound00:38:061
3892027994031,6cyclictest3936889-21unixbench_multi21:15:270
389204099393,6cyclictest3925988-21ntp_states20:45:203
389204099393,3cyclictest3944406-21apt-get21:40:123
3892040993931,5cyclictest3972097-21idleruntime-cro23:00:003
3892040993931,5cyclictest3972097-21idleruntime-cro23:00:003
389204099392,6cyclictest3927576-21memory20:50:203
389204099392,6cyclictest3918532-21fschecks_count20:25:153
389204099392,4cyclictest3932359-21df_inode21:05:163
389204099392,12cyclictest3937332-21cron21:20:003
389204099391,9cyclictest3929434-21/usr/sbin/munin20:55:233
389204099391,9cyclictest3924254-21/usr/sbin/munin20:40:193
389204099391,8cyclictest3974472-21/usr/sbin/munin23:05:193
389204099391,8cyclictest3973077-21/usr/sbin/munin23:00:223
389204099391,7cyclictest3995379-21/usr/sbin/munin00:10:103
389204099391,7cyclictest3964676-21sshd22:35:463
389204099391,7cyclictest3941198-21/usr/sbin/munin21:30:163
389204099391,5cyclictest3969205-21/usr/sbin/munin22:50:163
389204099391,5cyclictest3969205-21/usr/sbin/munin22:50:163
389204099391,5cyclictest3951435-21apt-get22:00:123
389204099391,5cyclictest3951435-21apt-get22:00:123
389204099391,11cyclictest3960348-21tune2fs22:25:153
389204099391,11cyclictest3934727-21ntp_states21:10:203
389204099391,11cyclictest3934727-21ntp_states21:10:203
389204099391,10cyclictest3978081-21meminfo23:15:193
389204099391,10cyclictest3965841-21/usr/sbin/munin22:40:183
3892040993910,25cyclictest391ktimers/323:40:143
3892040993910,25cyclictest391ktimers/323:40:143
3892027993930,6cyclictest3985933-21munin-plugin-st23:40:000
3892040993829,5cyclictest391ktimers/320:30:133
389204099382,5cyclictest3908483-21irqstats19:55:183
389204099382,4cyclictest3999319-21ntp_states00:20:213
389204099382,4cyclictest3911681-21diskstats20:05:143
389204099381,9cyclictest3913604-21irqstats20:10:213
389204099381,8cyclictest3940131-21/usr/sbin/munin21:25:273
389204099381,5cyclictest3946241-21/usr/sbin/munin21:45:143
3892040993815,21cyclictest3949503-21/usr/sbin/munin21:55:223
3892040993815,19cyclictest0-21swapper/323:50:173
389204099381,4cyclictest4000543-21/usr/sbin/munin00:25:163
389204099381,4cyclictest3962320-21meminfo22:30:203
389204099381,4cyclictest3955859-21/usr/sbin/munin22:10:253
3892032993826,8cyclictest3969904-21grep22:50:241
3892032993826,8cyclictest3969904-21grep22:50:231
3892027993830,5cyclictest3923497-21sendmail20:40:010
389204099373,4cyclictest3988324-21meminfo23:45:193
389204099371,9cyclictest4002265-21/usr/sbin/munin00:30:153
389204099371,8cyclictest3991795-21/usr/sbin/munin23:55:203
389204099371,7cyclictest3910931-21/usr/sbin/munin20:00:263
389204099371,5cyclictest3917011-21if_eth120:20:173
389204099371,4cyclictest3997043-21/usr/sbin/munin00:15:133
389204099371,4cyclictest3958806-21irqstats22:20:173
389204099371,4cyclictest3947933-21/usr/sbin/munin21:50:153
389204099371,4cyclictest3896664-21meminfo19:20:193
389204099371,10cyclictest3904835-21/usr/sbin/munin19:45:143
3892032993727,7cyclictest3992308-21grep23:55:251
3892027993729,5cyclictest0-21swapper/023:24:590
3892027993728,6cyclictest0-21swapper/022:20:000
3892027993728,6cyclictest0-21swapper/019:20:000
389204099362,3cyclictest3937911-21/usr/sbin/munin21:20:173
389204099361,9cyclictest3901890-21ntp_states19:35:203
389204099361,4cyclictest3894742-21/usr/sbin/munin19:15:163
3892036993628,4cyclictest0-21swapper/222:00:002
3892036993625,7cyclictest0-21swapper/222:20:002
3892036993624,7cyclictest0-21swapper/223:00:002
3892036993624,7cyclictest0-21swapper/223:00:002
3892032993625,6cyclictest0-21swapper/123:05:181
3892027993627,6cyclictest0-21swapper/021:40:010
389204099351,4cyclictest0-21swapper/319:30:183
3892036993527,3cyclictest0-21swapper/222:40:262
3892036993526,4cyclictest0-21swapper/221:35:142
3892027993526,6cyclictest0-21swapper/022:40:000
3892027993526,5cyclictest0-21swapper/000:00:000
3892027993525,6cyclictest0-21swapper/022:00:000
3892027993524,8cyclictest3921756-21latency_hist20:35:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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