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2025-05-02 - 12:54

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 50 highest latencies:
System rackbslot5s.osadl.org (updated Fri May 02, 2025 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3495013995023,24cyclictest3574746-21idleruntime-cro23:00:000
3495013994813,31cyclictest0-21swapper/021:40:010
3495025994631,11cyclictest391ktimers/319:55:163
3495017994434,7cyclictest3545005-21grep21:30:301
3495013994421,19cyclictest36052532sleep000:25:260
349501399441,7cyclictest3543765-21idleruntime-cro21:30:000
3495013994414,26cyclictest0-21swapper/021:00:010
3495013994413,28cyclictest0-21swapper/019:45:230
349502599436,6cyclictest131rcu_preempt00:30:133
349501399432,8cyclictest3581553-21sendmail23:20:010
3495013994316,3cyclictest13650irq/42-30be0000.ethernet20:05:230
3495013994316,3cyclictest13650irq/42-30be0000.ethernet20:05:230
3495021994231,8cyclictest311ktimers/223:10:142
349501399429,8cyclictest3528673-21date20:45:020
3495013994212,3cyclictest0-21swapper/019:55:280
349501399411,8cyclictest3583429-21cron23:25:000
349501399401,18cyclictest0-21swapper/021:00:280
3495013994011,5cyclictest121ktimers/022:09:000
349501399401,11cyclictest3511248-21debian-sa119:55:010
3495025993932,4cyclictest3560937-21munin-plugin-st22:20:003
3495025993932,3cyclictest0-21swapper/323:40:003
349501399395,6cyclictest3547461-21cpuspeed21:40:160
3495013993928,8cyclictest3588521-21munin-plugin-st23:40:000
349501399392,5cyclictest0-21swapper/019:40:000
349501399391,8cyclictest3600638-21idleruntime-cro00:15:010
349501399391,8cyclictest3600638-21idleruntime-cro00:15:000
3495025993826,9cyclictest391ktimers/320:15:163
3495021993821,14cyclictest3495006-21cyclictest19:40:212
3495017993825,10cyclictest231ktimers/121:45:151
3495017993825,10cyclictest231ktimers/121:45:141
349501399389,7cyclictest3568991-21ls22:40:240
349501399381,6cyclictest3525262-21latency_hist20:35:010
349501399381,6cyclictest3514932-21latency_hist20:05:010
3495017993728,5cyclictest3605284-21unixbench_multi00:25:271
3495013993729,5cyclictest3598933-21ls00:10:000
3495013993712,5cyclictest121ktimers/022:00:260
3495013993710,6cyclictest3497060-21wc19:15:020
3495013993710,3cyclictest3538647-21latency_hist21:15:010
349501799365,6cyclictest131rcu_preempt22:50:141
3495017993628,4cyclictest0-21swapper/100:00:001
349501399369,5cyclictest121ktimers/019:40:290
349501399368,7cyclictest3558180-21cat22:10:170
3495013993613,3cyclictest3561486-21if_eth122:20:190
3495013993612,3cyclictest0-21swapper/022:15:280
3495013993611,5cyclictest0-21swapper/023:45:230
3495013993610,6cyclictest121ktimers/019:15:010
3495025993527,4cyclictest0-21swapper/320:55:303
3495025993523,7cyclictest0-21swapper/320:10:293
3495021993527,4cyclictest0-21swapper/221:55:272
3495021993526,4cyclictest0-21swapper/221:00:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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