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2026-03-17 - 15:42

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 Tue Mar 17, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2924807995040,7cyclictest3033625-21grep12:20:231
2924807994638,4cyclictest2978639-21munin-plugin-st09:45:011
2924816994538,5cyclictest3023624-21kworker/u8:0+events_unbound12:35:013
2924816994538,5cyclictest3023624-21kworker/u8:0+events_unbound12:35:003
2924816994531,11cyclictest391ktimers/308:35:123
2924807994538,4cyclictest2971820-21munin-plugin-st09:25:001
2924807994518,9cyclictest3000861-21seq10:45:491
2924807994517,10cyclictest2968045-21chrt09:11:011
2924816994432,8cyclictest3018496-21sendmail11:40:003
2924816994431,9cyclictest391ktimers/310:25:143
2924812994433,6cyclictest3025517-21munin-plugin-st12:00:002
2924812994433,6cyclictest3025517-21munin-plugin-st11:59:592
2924807994435,5cyclictest3004640-21apt-get11:00:001
2924803994432,8cyclictest2936810-21grep07:40:250
2924812994330,10cyclictest3005664-21/usr/sbin/munin11:00:272
2924812994329,11cyclictest2936647-21/usr/sbin/munin07:40:252
2924812994328,9cyclictest0-21swapper/210:10:102
2924812994328,9cyclictest0-21swapper/210:10:102
2924807994324,15cyclictest2938506-21unixbench_multi07:45:261
2924812994220,11cyclictest0-21swapper/207:25:132
2924816994134,5cyclictest3005074-21kworker/u8:2+events_unbound11:09:493
2924816994130,6cyclictest2978178-21grep09:40:263
2924812994128,10cyclictest3035267-21/usr/sbin/munin12:25:262
2924812994128,10cyclictest3035267-21/usr/sbin/munin12:25:262
2924812994128,10cyclictest3027910-21/usr/sbin/munin12:05:202
2924812994128,10cyclictest2996569-21/usr/sbin/munin10:35:182
2924812994127,11cyclictest3016107-21/usr/sbin/munin11:30:232
2924812994126,11cyclictest2939550-21/usr/sbin/munin07:50:172
2924812994118,6cyclictest2947497-21apt-get08:15:032
2924807994126,11cyclictest2976278-21/usr/sbin/munin09:35:241
2924803994131,6cyclictest0-21swapper/011:35:000
2924812994030,7cyclictest3017008-21apt-get11:35:122
2924812994030,6cyclictest0-21swapper/212:35:002
2924812994027,10cyclictest3027049-21cron12:03:002
2924812994027,10cyclictest2925737-21/usr/sbin/munin07:10:262
2924812994026,11cyclictest2990666-21cron10:19:002
2924812994026,11cyclictest2990666-21cron10:19:002
2924807994026,11cyclictest2957218-21/usr/sbin/munin08:40:201
2924807994026,10cyclictest3022575-21/usr/sbin/munin11:50:161
2924807994021,13cyclictest2966015-21/usr/sbin/munin09:05:241
2924803994033,4cyclictest2947510-21munin-plugin-st08:15:010
2924803994029,7cyclictest2996278-21grep10:35:140
2924812993932,4cyclictest2935577-21sendmail07:40:002
2924812993932,4cyclictest2935577-21sendmail07:40:002
2924812993930,6cyclictest2960094-21apt-get08:50:112
2924812993930,6cyclictest2960094-21apt-get08:50:112
2924812993930,6cyclictest2951367-21apt-get08:25:152
2924812993930,5cyclictest3033628-21unixbench_singl12:20:222
2924812993929,8cyclictest2982457-21apt-get09:55:062
2924812993928,8cyclictest2992717-21munin-node10:25:122
2924812993927,9cyclictest2985889-21/usr/sbin/munin10:05:262
2924812993927,8cyclictest3023342-21grep11:50:252
2924812993927,7cyclictest3012487-21/usr/sbin/munin11:20:212
2924812993926,10cyclictest3011213-21/usr/sbin/munin11:15:252
2924812993926,10cyclictest2945456-21cron08:06:012
2924812993926,10cyclictest2930197-21cron07:22:002
2924812993925,11cyclictest3009003-21/usr/sbin/munin11:10:182
2924812993919,16cyclictest2954978-21runrttasks08:35:112
2924807993929,6cyclictest0-21swapper/111:30:001
2924807993929,6cyclictest0-21swapper/107:25:011
2924807993926,10cyclictest2984511-21/usr/sbin/munin10:00:161
2924807993925,10cyclictest231ktimers/111:35:111
2924807993923,10cyclictest2987704-21/usr/sbin/munin10:10:131
2924807993923,10cyclictest2987704-21/usr/sbin/munin10:10:131
2924807993921,14cyclictest3025924-21fschecks_count12:00:141
2924807993921,13cyclictest2951475-21df08:25:161
2924807993920,14cyclictest53-21kcompactd012:35:051
2924807993920,14cyclictest53-21kcompactd012:35:051
2924807993919,15cyclictest2948145-21tune2fs08:15:171
2924803993927,8cyclictest3017991-21grep11:35:240
2924812993833,2cyclictest2927268-21apt-get07:15:122
2924812993832,3cyclictest3020430-21apt-get11:45:122
2924812993831,4cyclictest2970095-21cron09:20:012
2924812993828,7cyclictest3001581-21/usr/sbin/munin10:50:152
2924812993827,8cyclictest2961853-21/usr/sbin/munin08:55:162
2924812993827,8cyclictest2933762-21sshd07:34:002
2924812993826,9cyclictest3039151-21sshd12:37:332
2924812993826,9cyclictest3039151-21sshd12:37:332
2924812993826,9cyclictest3029767-21pluginstate12:10:222
2924812993826,8cyclictest2942980-21/usr/sbin/munin08:00:182
2924812993825,10cyclictest2965756-21/usr/sbin/munin09:05:212
2924812993821,13cyclictest2997942-21df10:40:132
2924812993820,13cyclictest2954908-21latency_hist08:35:012
2924807993825,10cyclictest3031662-21/usr/sbin/munin12:15:231
2924807993825,10cyclictest2962320-21/usr/sbin/munin08:55:221
2924807993824,9cyclictest2931716-21/usr/sbin/munin07:25:281
2924807993824,10cyclictest2969292-21/usr/sbin/munin09:15:221
2924807993823,10cyclictest0-21swapper/108:30:121
2924807993822,11cyclictest0-21swapper/111:20:111
2924807993822,10cyclictest0-21swapper/107:10:131
2924807993821,13cyclictest3028923-21cron12:10:001
2924812993731,3cyclictest3018732-21apt-get11:40:152
2924812993727,7cyclictest3003598-21/usr/sbin/munin10:55:202
2924812993727,7cyclictest2984303-21/usr/sbin/munin10:00:132
2924812993727,7cyclictest2977753-21/usr/sbin/munin09:40:222
2924812993726,8cyclictest2976136-21/usr/sbin/munin09:35:232
2924812993720,13cyclictest2980538-21latency_hist09:50:012
2924812993720,13cyclictest2973634-21sed09:30:012
2924812993719,15cyclictest2951216-21latency_hist08:25:012
2924807993726,8cyclictest2958397-21/usr/sbin/munin08:45:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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