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2024-05-28 - 06:21

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 Mon May 27, 2024 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3314835997115,37cyclictest131ktimers/010:45:010
331483999707,39cyclictest3350104-21cp10:35:022
331483999662,31cyclictest0-21swapper/207:35:022
331483599606,17cyclictest12-21ksoftirqd/009:45:010
331483599606,17cyclictest12-21ksoftirqd/009:45:010
331483699571,24cyclictest0-21swapper/111:20:011
3314836995340,8cyclictest3338123-21munin-plugin-st09:25:001
3314835995142,6cyclictest3335486-21grep09:05:340
3314835995040,6cyclictest3361205-21cut11:40:000
3314836994929,14cyclictest231ktimers/110:15:141
3314836994927,15cyclictest231ktimers/107:40:131
3314835994926,16cyclictest3334095-21/usr/sbin/munin09:00:200
3314836994837,7cyclictest3327038-21sendmail08:20:011
3314835994831,14cyclictest131ktimers/010:35:130
331483599482,3cyclictest3353452-21latency_hist10:55:010
331483599481,22cyclictest0-21swapper/007:25:010
331483699478,18cyclictest22-21rcuc/109:40:001
3314836994737,6cyclictest3326189-21munin-plugin-st08:15:011
3314836994737,5cyclictest3364540-21grep11:55:291
3314836994734,8cyclictest0-21swapper/111:50:351
3314836994729,14cyclictest231ktimers/109:30:161
3314836994729,14cyclictest231ktimers/109:30:161
331483599472,21cyclictest0-21swapper/012:25:200
331483599472,21cyclictest0-21swapper/012:25:200
331483599471,9cyclictest0-21swapper/011:00:020
331483599471,9cyclictest0-21swapper/011:00:020
3314836994636,6cyclictest3344834-21grep10:00:331
3314836994630,7cyclictest3332088-21grep08:45:311
3314836994625,15cyclictest231ktimers/110:55:151
3314836994625,15cyclictest231ktimers/110:55:151
3314835994632,7cyclictest131ktimers/007:45:270
3314835994632,7cyclictest131ktimers/007:45:270
3314835994615,5cyclictest15-21rcuc/008:00:260
3314835994615,5cyclictest15-21rcuc/008:00:260
3314839994532,10cyclictest3334699-21unixbench_singl09:00:342
3314836994522,18cyclictest231ktimers/108:20:161
3314839994436,5cyclictest3333040-21munin-plugin-st08:55:012
3314836994431,8cyclictest0-21swapper/111:35:341
3314836994423,15cyclictest231ktimers/109:45:141
3314836994423,15cyclictest231ktimers/109:45:141
3314835994440,2cyclictest0-21swapper/010:20:010
3314835994434,6cyclictest3322623-21grep07:50:290
3314839994334,5cyclictest0-21swapper/208:55:332
331483699434,19cyclictest22-21rcuc/110:45:011
3314836994331,7cyclictest0-21swapper/110:05:291
3314836994330,9cyclictest0-21swapper/110:35:381
3314836994329,9cyclictest0-21swapper/107:10:441
3314836994328,8cyclictest0-21swapper/112:35:311
3314836994328,7cyclictest0-21swapper/109:05:231
3314836994328,10cyclictest0-21swapper/108:50:361
3314836994320,15cyclictest231ktimers/107:50:091
3314835994336,4cyclictest21150irq/209-8000000.ethernet09:55:340
3314835994318,3cyclictest0-21swapper/007:35:190
3314835994313,27cyclictest14-21rcu_preempt09:35:270
3314839994231,7cyclictest0-21swapper/212:10:302
3314839994228,9cyclictest0-21swapper/207:35:202
3314836994232,6cyclictest3358579-21grep11:20:321
3314836994231,5cyclictest0-21swapper/111:00:311
3314836994230,8cyclictest0-21swapper/110:20:341
3314836994229,8cyclictest0-21swapper/108:55:321
3314836994229,8cyclictest0-21swapper/108:40:331
3314836994224,13cyclictest231ktimers/108:25:121
3314836994222,13cyclictest231ktimers/108:05:121
331483599429,12cyclictest3357908-21gpgv11:20:000
3314835994227,11cyclictest0-21swapper/009:15:200
3314835994225,13cyclictest0-21swapper/009:20:300
331483599422,12cyclictest3366472-21munin-node12:10:080
3314835994217,11cyclictest131ktimers/009:25:140
3314835994216,4cyclictest26850irq/343-wl18xx07:20:010
3314835994212,11cyclictest12-21ksoftirqd/008:10:000
331483599421,10cyclictest0-21swapper/012:00:010
3314839994127,9cyclictest0-21swapper/211:15:022
3314836994133,4cyclictest3366250-21kworker/u8:1-events_power_efficient12:25:291
3314836994133,4cyclictest3366250-21kworker/u8:1-events_power_efficient12:25:281
3314836994127,9cyclictest0-21swapper/107:45:191
3314836994127,9cyclictest0-21swapper/107:45:181
3314836994127,10cyclictest0-21swapper/109:50:371
3314835994134,5cyclictest14-21rcu_preempt07:30:240
331483599413,3cyclictest0-21swapper/010:15:010
3314835994132,7cyclictest3332982-21grep08:50:370
3314835994130,8cyclictest3320954-21grep07:40:330
331483599412,4cyclictest3339928-21grep09:35:020
331483599412,4cyclictest3339928-21grep09:35:010
3314839994030,6cyclictest3338123-21munin-plugin-st09:24:592
3314839994029,7cyclictest0-21swapper/211:45:322
3314839994029,7cyclictest0-21swapper/211:45:322
3314839994025,11cyclictest3316774-21munin-plugin-st07:20:002
3314836994028,8cyclictest0-21swapper/112:05:341
3314836994027,8cyclictest0-21swapper/111:40:321
3314835994026,9cyclictest0-21swapper/010:45:350
331483599402,32cyclictest0-21swapper/011:55:000
3314839993928,7cyclictest0-21swapper/208:45:332
3314836993931,5cyclictest0-21swapper/108:00:331
3314836993931,5cyclictest0-21swapper/108:00:331
3314836993927,7cyclictest0-21swapper/111:45:331
3314836993927,7cyclictest0-21swapper/111:45:321
3314836993926,9cyclictest0-21swapper/110:50:341
3314836993924,9cyclictest0-21swapper/107:35:201
3314836993922,9cyclictest0-21swapper/111:25:331
3314835993929,7cyclictest15-21rcuc/009:40:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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