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2026-06-10 - 00:34

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

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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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 rack4slot1s.osadl.org (updated Tue Jun 09, 2026 12:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3049221030,3sleep30-21swapper/310:03:023
3049221030,3sleep30-21swapper/310:03:023
3049221030,3sleep30-21swapper/310:03:023
100722960,2sleep010076-21sed10:33:100
100722960,2sleep010076-21sed10:33:100
183362950,2sleep30-21swapper/309:28:133
183362950,2sleep30-21swapper/309:28:133
183362950,2sleep30-21swapper/309:28:133
185812850,3sleep00-21swapper/012:23:090
185812850,3sleep00-21swapper/012:23:090
185812850,3sleep00-21swapper/012:23:090
13612700,1chrt32615-21kworker/u9:4-rpciod08:43:110
13612700,1chrt32615-21kworker/u9:4-rpciod08:43:110
40592530,1chrt3948-21/usr/sbin/munin08:53:000
40592530,1chrt3948-21/usr/sbin/munin08:53:000
201112470,2chrt0-21swapper/012:28:030
201112470,2chrt0-21swapper/012:28:030
45142430,4sleep04517-21timerwakeupswit10:18:100
45142430,4sleep04517-21timerwakeupswit10:18:100
208122430,1sleep120811-21timerwakeupswit12:28:121
208122430,1sleep120811-21timerwakeupswit12:28:121
196462430,3sleep019836-21grep08:08:030
196462430,3sleep019836-21grep08:08:030
134622430,3sleep20-21swapper/212:08:112
134622430,3sleep20-21swapper/212:08:112
134622430,3sleep20-21swapper/212:08:112
287032420,4sleep2351rcuc/209:58:022
287032420,4sleep2351rcuc/209:58:022
145652410,3sleep10-21swapper/112:13:061
145652410,3sleep10-21swapper/112:13:061
112752380,2chrt11280-21gltestperf10:38:040
112752380,2chrt11280-21gltestperf10:38:040
31543993732,4cyclictest9535-21/usr/sbin/munin07:38:111
31543993727,7cyclictest550-21cron11:02:491
31543993727,7cyclictest550-21cron11:02:491
31543993727,7cyclictest550-21cron11:02:491
94652360,2sleep19640-21unixbench-2d11:58:141
94652360,2sleep19640-21unixbench-2d11:58:141
94652360,2sleep19640-21unixbench-2d11:58:141
31543993628,6cyclictest6567-21tr08:58:071
31543993628,6cyclictest6567-21tr08:58:071
31541993630,4cyclictest10142-21idleruntime-cro12:02:490
31541993630,4cyclictest10142-21idleruntime-cro12:02:490
31541993630,4cyclictest10142-21idleruntime-cro12:02:490
31541993626,7cyclictest21950-21cron11:07:490
31541993626,7cyclictest21950-21cron11:07:490
31541993626,7cyclictest21950-21cron11:07:490
312622360,2sleep031454-21grep10:03:120
312622360,2sleep031454-21grep10:03:120
312622360,2sleep031454-21grep10:03:120
115202350,3sleep20-21swapper/210:38:062
115202350,3sleep20-21swapper/210:38:062
31543993426,6cyclictest23255-21kernelversion09:43:041
31543993426,6cyclictest23255-21kernelversion09:43:041
31543993329,3cyclictest31540-21cyclictest08:42:481
31543993329,3cyclictest31540-21cyclictest08:42:481
31541993328,3cyclictest0-21swapper/008:02:490
31541993325,6cyclictest26844-21cut09:53:010
31541993325,6cyclictest26844-21cut09:53:010
31541993125,4cyclictest16477-21kernelversion12:18:040
31541993125,4cyclictest16477-21kernelversion12:18:040
31541993125,4cyclictest1346-21avahi-daemon10:23:110
31541993125,4cyclictest1346-21avahi-daemon10:23:110
31541993125,4cyclictest1346-21avahi-daemon10:23:110
31541993124,5cyclictest3991-21unixbench-2d11:43:090
31541993124,5cyclictest3991-21unixbench-2d11:43:090
31543993023,5cyclictest4483-21latency_hist11:48:001
31543993023,5cyclictest4483-21latency_hist11:48:001
31541993025,4cyclictest31540-21cyclictest08:21:290
31541993024,4cyclictest547-21rs:main0
31541993022,6cyclictest16350-21latency_hist10:52:480
31541993022,6cyclictest16350-21latency_hist10:52:480
31541993022,6cyclictest16350-21latency_hist10:52:480
31543992923,4cyclictest29268-21gltestperf08:33:021
31543992922,5cyclictest13897-21latency_hist12:12:481
31543992922,5cyclictest13897-21latency_hist12:12:481
31543992922,5cyclictest13897-21latency_hist12:12:481
31541992921,6cyclictest7504-21latency_hist09:02:480
31541992921,6cyclictest7504-21latency_hist09:02:480
144002290,2sleep20-21swapper/207:53:042
3154999288,16cyclictest0-21swapper/209:34:592
3154999288,16cyclictest0-21swapper/209:34:592
3154999281,4cyclictest60602sleep211:48:512
3154999281,4cyclictest60602sleep211:48:512
31543992822,5cyclictest26256-21cron09:52:481
31543992822,5cyclictest26256-21cron09:52:481
31543992822,4cyclictest17314-21ntp_offset10:53:091
31543992822,4cyclictest17314-21ntp_offset10:53:091
31543992822,4cyclictest17314-21ntp_offset10:53:091
31543992822,3cyclictest0-21swapper/111:03:101
31543992822,3cyclictest0-21swapper/111:03:101
31543992822,3cyclictest0-21swapper/111:03:101
31543992822,3cyclictest0-21swapper/107:48:101
31543992822,3cyclictest0-21swapper/107:48:101
31543992821,5cyclictest9573-21kernelversion10:33:031
31543992821,5cyclictest9573-21kernelversion10:33:031
31543992821,5cyclictest21299-21latency_hist08:12:561
31543992821,5cyclictest21299-21latency_hist08:12:561
31543992820,6cyclictest13702-21rt-features10:43:111
31543992820,6cyclictest13702-21rt-features10:43:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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