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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 #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 100 highest latencies:
System rack4slot1s.osadl.org (updated Thu Apr 03, 2025 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3169521250,3chrt0-21swapper/210:08:382
3169521250,3chrt0-21swapper/210:08:382
1590521210,3sleep20-21swapper/211:03:332
1590521210,3sleep20-21swapper/211:03:332
2136021180,3chrt0-21swapper/209:38:352
2136021180,3chrt0-21swapper/209:38:352
2319621060,2chrt23197-21fschecks_count08:08:341
2319621060,2chrt23197-21fschecks_count08:08:341
365121050,4chrt0-21swapper/207:18:182
365121050,4chrt0-21swapper/207:18:182
118892990,3chrt0-21swapper/210:48:372
118892990,3chrt0-21swapper/210:48:372
77792870,2sleep20-21swapper/207:28:272
77792870,2sleep20-21swapper/207:28:272
95682800,2sleep30-21swapper/310:43:323
95682800,2sleep30-21swapper/310:43:323
95682800,2sleep30-21swapper/310:43:323
285912730,3sleep00-21swapper/011:43:350
285912730,3sleep00-21swapper/011:43:350
62742700,3chrt0-21swapper/208:53:252
138662640,4sleep20-21swapper/207:43:352
138662640,4sleep20-21swapper/207:43:352
247452610,2sleep024924-21grep11:28:440
124652590,3chrt0-21swapper/107:38:471
105142590,1chrt0-21swapper/109:08:191
105142590,1chrt0-21swapper/109:08:191
3894995619,29cyclictest0-21swapper/010:58:310
389599552,43cyclictest6935-21taskset08:58:261
389599533,41cyclictest826-21cron10:18:271
389599533,41cyclictest826-21cron10:18:271
389599531,40cyclictest1067-21date10:18:271
229432510,2sleep022645-21apt-get08:08:260
229432510,2sleep022645-21apt-get08:08:260
3894994932,9cyclictest0-21swapper/009:59:500
3894994932,9cyclictest0-21swapper/009:59:500
177832490,3chrt17785-21fschecks_time11:08:341
177832490,3chrt17785-21fschecks_time11:08:341
177832490,3chrt17785-21fschecks_time11:08:341
89462480,3sleep30-21swapper/307:28:443
89462480,3sleep30-21swapper/307:28:443
389599482,38cyclictest6910-21sendmail-mta08:58:261
311512480,1chrt0-21swapper/110:08:331
311512480,1chrt0-21swapper/110:08:331
185312480,3chrt0-21swapper/109:28:331
185312480,3chrt0-21swapper/109:28:331
103012480,3sleep10-21swapper/107:33:371
103012480,3sleep10-21swapper/107:33:371
3895994722,18cyclictest281ktimers/111:23:291
3895994722,18cyclictest281ktimers/111:23:291
3894994734,8cyclictest27215-21apt-get09:58:270
3894994734,8cyclictest27215-21apt-get09:58:270
389499465,30cyclictest17268-21runrttasks07:53:300
389499465,30cyclictest17268-21runrttasks07:53:300
3894994631,12cyclictest0-21swapper/008:41:130
3894994631,12cyclictest0-21swapper/008:41:130
203332460,4chrt0-21swapper/309:33:253
203332460,4chrt0-21swapper/309:33:253
3894994435,6cyclictest22901-21apt-get09:43:310
3894994435,6cyclictest22901-21apt-get09:43:310
3894994434,6cyclictest2575-21apt-get08:43:320
3894994434,6cyclictest2575-21apt-get08:43:320
3894994415,9cyclictest13197-21taskset10:54:090
311232440,1sleep00-21swapper/010:08:320
311232440,1sleep00-21swapper/010:08:320
229992440,2sleep20-21swapper/208:08:272
229992440,2sleep20-21swapper/208:08:272
128782440,3chrt0-21swapper/209:13:352
128782440,3chrt0-21swapper/209:13:352
3895994320,16cyclictest281ktimers/107:48:291
3895994320,16cyclictest281ktimers/107:48:291
3894994315,10cyclictest774-21chrt10:17:400
3894994315,10cyclictest774-21chrt10:17:400
182702430,3sleep30-21swapper/311:08:403
182702430,3sleep30-21swapper/311:08:403
182702430,3sleep30-21swapper/311:08:403
3895994229,8cyclictest0-21swapper/108:43:311
3895994229,8cyclictest0-21swapper/108:43:311
3894994227,11cyclictest2952-21apt-get10:23:310
3894994227,11cyclictest2952-21apt-get10:23:310
3894994225,13cyclictest0-21swapper/012:23:300
3894994217,9cyclictest11410-21date12:38:200
3894994217,9cyclictest11410-21date12:38:200
3894994215,12cyclictest10144-21seq09:04:200
3894994215,12cyclictest10144-21seq09:04:200
3894994211,22cyclictest36350irq/47-eth008:18:330
3894994211,22cyclictest36350irq/47-eth008:18:330
182622420,3sleep00-21swapper/009:28:200
182622420,3sleep00-21swapper/009:28:200
389599411,8cyclictest181rcu_preempt12:38:271
3894994129,9cyclictest590-21192.168.115.40-manager12:17:180
3894994129,9cyclictest590-21192.168.115.40-manager12:17:180
3894994129,6cyclictest7342-21apt-get10:38:300
3894994129,6cyclictest7342-21apt-get10:38:300
3894994128,10cyclictest590-21192.168.115.40-manager11:58:590
3894994128,10cyclictest590-21192.168.115.40-manager11:58:590
3894994128,10cyclictest5793-21apt-get07:23:310
3894994128,10cyclictest5793-21apt-get07:23:310
3894994125,13cyclictest21877-21apt-get11:23:300
3894994125,13cyclictest21877-21apt-get11:23:300
3894994116,11cyclictest11007-21taskset07:34:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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