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2026-08-30 - 06:59

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 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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot6s.osadl.org (updated Sun Aug 30, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1145447996958,4cyclictest0-21swapper/000:00:110
114545299588,21cyclictest0-21swapper/223:55:212
114545299588,21cyclictest0-21swapper/223:55:212
1145447995829,26cyclictest0-21swapper/020:00:110
1145452995648,5cyclictest1156670-21munin-plugin-st20:14:592
114545099554,16cyclictest22-21rcuc/122:55:011
114545099551,31cyclictest0-21swapper/120:00:011
1145447995546,5cyclictest20650irq/252-8000000.ethernet20:50:020
1145447995447,4cyclictest1154130-21cat20:00:000
1145452995331,13cyclictest0-21swapper/223:35:282
1145447995244,4cyclictest167350irq/118-8000000.ethernet-tx000:15:000
1145447995242,5cyclictest1183952-21munin-plugin-st22:55:000
1145452995137,9cyclictest0-21swapper/223:10:272
1145452995038,7cyclictest1159227-21grep20:25:432
1145452995037,8cyclictest1160055-21grep20:30:292
114545299503,28cyclictest1190960-21rm23:35:012
1145447995043,4cyclictest20650irq/252-8000000.ethernet22:20:280
1145447995043,4cyclictest20650irq/252-8000000.ethernet22:20:280
1145447995042,5cyclictest0-21swapper/021:50:110
1145447995042,4cyclictest20650irq/252-8000000.ethernet23:40:000
1145447995040,6cyclictest1181976-21ptp4l-jitter22:40:280
114544799494,31cyclictest0-21swapper/022:35:000
1145447994941,4cyclictest20650irq/252-8000000.ethernet23:25:180
114544799492,3cyclictest0-21swapper/019:20:020
1145452994840,4cyclictest1172897-21munin-plugin-st21:50:002
1145452994835,8cyclictest1157490-21grep20:15:292
1145452994830,12cyclictest0-21swapper/222:45:302
1145447994841,4cyclictest20650irq/252-8000000.ethernet20:50:240
1145447994840,4cyclictest20650irq/252-8000000.ethernet21:40:200
1145447994840,4cyclictest20650irq/252-8000000.ethernet21:40:200
1145447994840,4cyclictest167350irq/118-8000000.ethernet-tx020:40:160
1145452994734,8cyclictest1180451-21grep22:30:292
1145452994732,6cyclictest0-21swapper/200:25:192
1145452994730,8cyclictest0-21swapper/222:20:212
1145452994730,8cyclictest0-21swapper/222:20:202
1145450994739,4cyclictest0-21swapper/122:40:301
1145447994740,4cyclictest20650irq/252-8000000.ethernet23:10:160
1145447994740,4cyclictest20650irq/252-8000000.ethernet00:30:250
1145447994740,4cyclictest167350irq/118-8000000.ethernet-tx022:00:170
1145447994739,4cyclictest20650irq/252-8000000.ethernet22:05:300
1145447994739,4cyclictest20650irq/252-8000000.ethernet19:25:180
1145447994734,9cyclictest0-21swapper/019:15:000
1145447994734,9cyclictest0-21swapper/019:15:000
114544799471,25cyclictest0-21swapper/023:25:010
1145452994639,4cyclictest1150764-21sendmail19:40:012
1145452994639,4cyclictest1150764-21sendmail19:40:012
1145452994634,7cyclictest1194217-21grep23:50:262
1145452994632,9cyclictest0-21swapper/222:05:292
1145452994632,8cyclictest0-21swapper/221:00:262
1145452994632,8cyclictest0-21swapper/221:00:262
1145452994629,7cyclictest0-21swapper/221:40:212
1145452994629,7cyclictest0-21swapper/221:40:202
1145452994626,12cyclictest0-21swapper/220:05:272
1145450994637,5cyclictest0-21swapper/121:05:291
1145447994639,4cyclictest20650irq/252-8000000.ethernet22:25:190
1145447994639,4cyclictest20650irq/252-8000000.ethernet21:05:170
1145447994639,4cyclictest20650irq/252-8000000.ethernet20:30:220
1145447994639,4cyclictest20650irq/252-8000000.ethernet20:05:240
1145447994639,4cyclictest20650irq/252-8000000.ethernet19:15:170
1145447994639,4cyclictest20650irq/252-8000000.ethernet00:05:230
1145447994639,4cyclictest1156782-21apt-key20:15:010
1145447994638,4cyclictest20650irq/252-8000000.ethernet23:00:150
1145447994636,5cyclictest0-21swapper/023:05:210
1145447994636,5cyclictest0-21swapper/023:05:210
1145450994537,5cyclictest1187416-21munin-run23:14:591
1145450994535,5cyclictest1183234-21grep22:50:021
1145447994539,3cyclictest20650irq/252-8000000.ethernet22:10:270
1145447994539,3cyclictest20650irq/252-8000000.ethernet00:20:210
1145447994539,3cyclictest20650irq/252-8000000.ethernet00:20:210
1145447994539,3cyclictest20650irq/252-8000000.ethernet00:15:290
1145447994538,4cyclictest20650irq/252-8000000.ethernet23:30:160
1145447994538,4cyclictest20650irq/252-8000000.ethernet22:35:200
1145447994538,4cyclictest20650irq/252-8000000.ethernet21:00:300
1145447994538,4cyclictest20650irq/252-8000000.ethernet21:00:290
1145447994538,4cyclictest20650irq/252-8000000.ethernet20:15:250
1145447994538,4cyclictest20650irq/252-8000000.ethernet19:40:010
1145447994538,4cyclictest20650irq/252-8000000.ethernet19:40:000
1145447994538,4cyclictest167350irq/118-8000000.ethernet-tx020:20:110
1145447994536,5cyclictest1184281-21fschecks_time22:55:210
1145452994432,8cyclictest0-21swapper/221:55:002
1145452994431,9cyclictest0-21swapper/222:05:002
1145452994430,7cyclictest0-21swapper/200:35:282
1145452994429,8cyclictest0-21swapper/220:50:012
114545099441,24cyclictest0-21swapper/119:35:001
1145447994439,3cyclictest20650irq/252-8000000.ethernet21:20:210
1145447994436,4cyclictest0-21swapper/021:35:270
1145447994435,7cyclictest1200274-21sh00:30:000
1145447994435,5cyclictest1188166-21unixbench_multi23:15:290
114544799442,40cyclictest0-21swapper/021:10:190
1145452994331,7cyclictest1198366-21grep00:15:292
1145452994331,7cyclictest1166081-21grep21:05:302
1145452994330,9cyclictest0-21swapper/219:40:212
1145452994330,7cyclictest0-21swapper/222:10:212
1145452994327,11cyclictest0-21swapper/219:20:192
1145452994327,11cyclictest0-21swapper/200:10:282
1145452994315,13cyclictest1153490-21/usr/sbin/munin19:55:172
1145450994333,6cyclictest231ktimers/120:05:141
1145450994331,8cyclictest0-21swapper/122:55:001
1145450994328,9cyclictest231ktimers/123:00:111
1145447994336,4cyclictest20650irq/252-8000000.ethernet20:55:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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