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2026-06-30 - 05:38

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 Tue Jun 30, 2026 00:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3144621170,2chrt31445-21entropy22:48:181
3144621170,2chrt31445-21entropy22:48:181
36212940,2chrt0-21swapper/320:08:083
36212940,2chrt0-21swapper/320:08:083
106502850,3sleep30-21swapper/320:23:323
106502850,3sleep30-21swapper/320:23:323
79692780,3sleep07967-21sensors_temp21:43:290
79692780,3sleep07967-21sensors_temp21:43:290
79692780,3sleep07967-21sensors_temp21:43:290
101582710,3chrt0-21swapper/321:48:303
101582710,3chrt0-21swapper/321:48:303
101582710,3chrt0-21swapper/321:48:303
169192680,3sleep00-21swapper/023:33:270
169192680,3sleep00-21swapper/023:33:270
13292630,3sleep30-21swapper/321:28:163
13292630,3sleep30-21swapper/321:28:163
13292630,3sleep30-21swapper/321:28:163
23592600,3sleep20-21swapper/200:23:222
23592600,3sleep20-21swapper/200:23:222
15920996052,3cyclictest0-21swapper/100:03:241
15920996052,3cyclictest0-21swapper/100:03:241
15920996052,3cyclictest0-21swapper/100:03:241
232702590,3sleep30-21swapper/320:58:263
232702590,3sleep30-21swapper/320:58:263
15912995729,26cyclictest30773-21netstat21:18:270
15912995729,26cyclictest30773-21netstat21:18:270
15912995729,26cyclictest30773-21netstat21:18:270
149382560,2sleep20-21swapper/220:38:102
149382560,2sleep20-21swapper/220:38:102
15912995444,5cyclictest0-21swapper/000:03:150
15912995444,5cyclictest0-21swapper/000:03:150
15912995444,5cyclictest0-21swapper/000:03:150
43882500,3chrt0-21swapper/221:33:302
43882500,3chrt0-21swapper/221:33:302
284252450,3chrt0-21swapper/300:03:583
284252450,3chrt0-21swapper/300:03:583
284252450,3chrt0-21swapper/300:03:583
297262440,2chrt0-21swapper/222:43:202
297262440,2chrt0-21swapper/222:43:202
204772440,3sleep30-21swapper/320:53:083
204772440,3sleep30-21swapper/320:53:083
195852440,2sleep119580-21latency_hist23:43:171
246842430,3sleep20-21swapper/222:28:292
246842430,3sleep20-21swapper/222:28:292
40242420,5chrt4014-21cpu00:28:190
40242420,5chrt4014-21cpu00:28:190
40242420,5chrt4014-21cpu00:28:190
1591299411,35cyclictest27850-21cat00:03:250
1591299411,35cyclictest27850-21cat00:03:250
1591299411,35cyclictest27850-21cat00:03:250
1592799401,23cyclictest26982-21chrt00:03:133
1592799401,23cyclictest26982-21chrt00:03:133
1592799401,23cyclictest26982-21chrt00:03:133
19542390,2sleep02061-21df_inode20:03:200
19542390,2sleep02061-21df_inode20:03:200
107832390,3sleep10-21swapper/121:53:191
107832390,3sleep10-21swapper/121:53:191
15920993832,4cyclictest360-21cut19:58:201
15920993832,4cyclictest360-21cut19:58:201
89942370,1sleep09149-21fschecks_time21:48:200
89942370,1sleep09149-21fschecks_time21:48:200
89942370,1sleep09149-21fschecks_time21:48:200
201862350,1sleep120253-21processes19:23:291
201862350,1sleep120253-21processes19:23:291
15920993529,4cyclictest15901-21cyclictest23:33:191
15920993529,4cyclictest15901-21cyclictest23:33:191
15920993424,3cyclictest181rcu_preempt20:13:071
15920993424,3cyclictest181rcu_preempt20:13:071
15912993424,7cyclictest550-21cron23:23:090
15912993424,7cyclictest550-21cron23:23:090
15912993424,7cyclictest550-21cron23:23:090
267972330,2sleep00-21swapper/019:43:140
267972330,2sleep00-21swapper/019:43:140
1592099336,6cyclictest281ktimers/122:57:101
1592099336,6cyclictest281ktimers/122:57:101
1592099336,6cyclictest281ktimers/122:57:101
15920993312,18cyclictest271rcuc/121:04:381
15920993312,18cyclictest271rcuc/121:04:381
15912993326,5cyclictest4738-21cut23:03:190
81942320,3sleep00-21swapper/023:13:130
81942320,3sleep00-21swapper/023:13:130
15920993227,3cyclictest26932-21latency_hist00:03:091
15920993227,3cyclictest26932-21latency_hist00:03:091
15920993227,3cyclictest26932-21latency_hist00:03:091
15920993227,3cyclictest0-21swapper/123:23:071
15920993227,3cyclictest0-21swapper/123:23:071
15920993227,3cyclictest0-21swapper/123:23:071
15920993225,5cyclictest281ktimers/123:16:111
15920993225,5cyclictest281ktimers/123:16:111
15920993224,6cyclictest30216-21unixbench_singl00:08:361
15920993224,6cyclictest30216-21unixbench_singl00:08:361
15920993223,7cyclictest7707-21needreboot21:43:251
15920993223,7cyclictest7707-21needreboot21:43:251
15920993223,7cyclictest7707-21needreboot21:43:251
15920993223,7cyclictest27958-21latency_hist21:13:071
15920993223,7cyclictest27958-21latency_hist21:13:071
15920993223,7cyclictest27958-21latency_hist21:13:071
15912993227,3cyclictest0-21swapper/023:03:070
15912993227,3cyclictest0-21swapper/023:03:070
1592099319,14cyclictest29-21ksoftirqd/123:40:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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