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2025-04-03 - 23:50

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #6

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 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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot6s.osadl.org (updated Thu Apr 03, 2025 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
228177599566,22cyclictest20950irq/209-8000000.ethernet19:45:010
228177599566,22cyclictest20950irq/209-8000000.ethernet19:45:000
228177599543,25cyclictest2285542-21gpgv19:30:010
228177599542,17cyclictest15-21rcuc/019:35:000
2281780995237,9cyclictest2323006-21grep23:30:292
2281777995243,4cyclictest0-21swapper/123:20:291
2281780995140,7cyclictest2288854-21munin-plugin-st19:50:002
2281775995131,14cyclictest0-21swapper/021:20:300
2281777995041,4cyclictest2321067-21munin-plugin-st23:20:001
2281777995040,6cyclictest0-21swapper/119:40:281
2281777995040,6cyclictest0-21swapper/119:40:281
2281775995036,7cyclictest0-21swapper/000:40:010
2281780994939,5cyclictest0-21swapper/220:05:002
2281780994934,10cyclictest2306124-21grep21:30:282
228178099491,31cyclictest0-21swapper/221:20:012
228178099486,34cyclictest0-21swapper/223:45:012
228178099486,34cyclictest0-21swapper/223:45:012
2281777994838,5cyclictest0-21swapper/119:15:011
228177599471,36cyclictest0-21swapper/022:10:070
228178099464,23cyclictest0-21swapper/200:30:012
2281780994637,5cyclictest2295761-21cron20:30:002
228177799461,12cyclictest0-21swapper/119:55:011
2281775994634,8cyclictest0-21swapper/023:25:000
2281775994629,12cyclictest2299070-21grep20:45:310
2281780994531,10cyclictest2329402-21latency_hist00:20:002
2281780994528,12cyclictest311ktimers/219:40:152
2281780994528,12cyclictest311ktimers/219:40:152
2281777994528,9cyclictest2285329-21grep19:25:301
2281777994526,11cyclictest0-21swapper/123:30:291
2281775994530,9cyclictest0-21swapper/021:15:290
2281775994526,11cyclictest0-21swapper/020:35:290
2281780994436,5cyclictest2300818-21sendmail21:00:002
2281780994434,5cyclictest0-21swapper/222:10:162
228178099441,2cyclictest0-21swapper/221:05:022
2281777994433,7cyclictest2284473-21grep19:20:301
2281777994433,7cyclictest2284473-21grep19:20:301
228177599446,3cyclictest0-21swapper/022:40:010
2281775994433,8cyclictest2294944-21apt-key20:25:010
2281775994429,9cyclictest0-21swapper/023:00:320
2281775994429,9cyclictest0-21swapper/023:00:320
2281775994429,8cyclictest0-21swapper/000:10:240
2281780994330,8cyclictest0-21swapper/200:10:232
2281777994335,5cyclictest0-21swapper/123:35:281
2281777994334,5cyclictest2315459-21latency_hist22:40:001
2281777994330,8cyclictest0-21swapper/123:40:291
2281777994330,8cyclictest0-21swapper/123:40:291
2281775994329,8cyclictest0-21swapper/019:35:300
2281775994326,12cyclictest0-21swapper/022:00:260
2281775994326,12cyclictest0-21swapper/022:00:260
2281775994321,19cyclictest131ktimers/000:20:290
2281780994234,6cyclictest2315388-21apt-get22:40:002
2281780994228,9cyclictest2325749-21grep23:50:242
2281777994231,6cyclictest0-21swapper/121:40:301
2281777994230,8cyclictest2299096-21grep20:45:311
2281777994227,9cyclictest0-21swapper/121:30:281
2281775994233,5cyclictest20950irq/209-8000000.ethernet21:00:260
2281775994233,5cyclictest20950irq/209-8000000.ethernet21:00:260
2281775994230,8cyclictest0-21swapper/019:15:000
2281775994217,20cyclictest0-21swapper/021:10:060
228177599421,6cyclictest0-21swapper/021:50:010
228177599421,6cyclictest0-21swapper/021:50:010
2281780994133,5cyclictest168450irq/135-8000000.ethernet-tx200:35:002
2281780994129,8cyclictest2307934-21grep21:40:312
2281780994129,8cyclictest0-21swapper/219:20:302
2281780994129,8cyclictest0-21swapper/219:20:292
2281780994128,8cyclictest0-21swapper/222:30:252
2281777994130,5cyclictest0-21swapper/122:30:241
2281777994128,8cyclictest0-21swapper/123:10:241
2281775994129,5cyclictest0-21swapper/023:35:200
2281775994127,9cyclictest0-21swapper/022:55:270
2281775994115,14cyclictest14-21rcu_preempt00:35:010
228177599411,2cyclictest0-21swapper/023:45:010
228177599411,2cyclictest0-21swapper/023:45:010
2281780994030,5cyclictest2303431-21munin-plugin-st21:15:002
2281780994029,7cyclictest2309772-21grep21:55:272
2281780994028,8cyclictest311ktimers/221:50:102
2281780994027,8cyclictest0-21swapper/221:35:292
2281780994025,8cyclictest0-21swapper/219:15:302
2281780994023,10cyclictest0-21swapper/219:25:302
2281777994030,5cyclictest0-21swapper/120:10:201
2281777994028,7cyclictest0-21swapper/121:20:311
2281777994028,5cyclictest0-21swapper/100:10:161
2281777994027,7cyclictest2332101-21grep00:35:311
2281775994027,9cyclictest0-21swapper/023:30:010
2281775994027,9cyclictest0-21swapper/023:30:010
2281775994026,9cyclictest0-21swapper/019:20:300
2281775994026,9cyclictest0-21swapper/019:20:300
2281775994026,10cyclictest0-21swapper/023:55:280
2281775994025,10cyclictest0-21swapper/022:30:230
228177599401,3cyclictest0-21swapper/022:10:010
228177599401,34cyclictest0-21swapper/020:00:130
228177599401,33cyclictest0-21swapper/020:50:160
228177599401,2cyclictest0-21swapper/019:20:010
2281780993932,4cyclictest168450irq/135-8000000.ethernet-tx220:35:162
2281780993931,6cyclictest2327502-21munin-plugin-st00:05:002
2281780993930,5cyclictest0-21swapper/219:15:012
2281780993926,9cyclictest0-21swapper/220:45:312
228177799396,19cyclictest2310613-21tail22:00:331
228177799396,19cyclictest2310613-21tail22:00:331
2281777993928,5cyclictest0-21swapper/100:15:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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