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2024-07-27 - 14:19

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 50 highest latencies:
System rack4slot1s.osadl.org (updated Sat Jul 27, 2024 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2462421390,3chrt0-21swapper/111:24:331
2462421390,3chrt0-21swapper/111:24:331
1728721370,9sleep1281ktimers/108:14:271
1728721370,9sleep1281ktimers/108:14:271
168321270,3sleep11688-21gltestperf08:59:251
168321270,3sleep11688-21gltestperf08:59:251
2436921000,2chrt0-21swapper/011:24:280
2436921000,2chrt0-21swapper/011:24:280
128892640,2chrt0-21swapper/209:29:252
128892640,2chrt0-21swapper/209:29:252
17612590,3chrt0-21swapper/307:34:213
17612590,3chrt0-21swapper/307:34:213
294242530,2chrt29425-21find11:39:121
294242530,2chrt29425-21find11:39:121
294242530,2chrt29425-21find11:39:121
73142520,3sleep20-21swapper/210:39:282
73142520,3sleep20-21swapper/210:39:282
32522500,3sleep30-21swapper/309:04:173
95792440,4sleep20-21swapper/209:19:322
65202440,3sleep20-21swapper/212:04:132
65202440,3sleep20-21swapper/212:04:132
209602430,1sleep120972-21strings09:49:311
209602430,1sleep120972-21strings09:49:311
26560993933,4cyclictest271rcuc/110:29:231
26560993933,4cyclictest271rcuc/110:29:231
186712390,1sleep2351rcuc/212:34:322
186712390,1sleep2351rcuc/212:34:322
2656199382,29cyclictest4854-21chrt10:34:212
2656199382,29cyclictest4854-21chrt10:34:212
26559993825,3cyclictest181rcu_preempt12:17:120
26559993825,3cyclictest181rcu_preempt12:17:120
2655999380,33cyclictest25502-21cron11:29:190
2655999380,33cyclictest25502-21cron11:29:190
177202380,2sleep10-21swapper/112:34:111
316382370,3sleep20-21swapper/211:44:232
316382370,3sleep20-21swapper/211:44:232
26560993729,6cyclictest7727-21threads10:39:341
26560993729,6cyclictest7727-21threads10:39:341
259152370,5sleep30-21swapper/307:09:353
17582370,1sleep10-21swapper/110:24:311
17582370,1sleep10-21swapper/110:24:311
126402370,3sleep20-21swapper/209:29:172
126402370,3sleep20-21swapper/209:29:172
2656199363,20cyclictest297122sleep210:14:232
2656199363,20cyclictest297122sleep210:14:232
26560993630,4cyclictest23509-21latency_hist11:24:081
26560993630,4cyclictest23509-21latency_hist11:24:081
248152360,3sleep20-21swapper/208:34:262
248152360,3sleep20-21swapper/208:34:262
206342360,2sleep30-21swapper/312:39:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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