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2025-07-10 - 16:18

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #3

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 rack7slot3s.osadl.org (updated Thu Jul 10, 2025 12:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
164012850,5sleep01283699cyclictest12:02:440
227692820,5sleep21283899cyclictest10:40:292
307722770,2sleep10-21swapper/108:00:031
95002740,2sleep30-21swapper/311:54:583
95002740,2sleep30-21swapper/311:54:583
160072730,3sleep00-21swapper/011:16:540
1283699734,56cyclictest0-21swapper/009:40:220
1283699721,59cyclictest3287-21grep08:10:310
1283699704,35cyclictest0-21swapper/010:50:160
1283699701,55cyclictest31088-21wget08:00:140
1283699701,53cyclictest3796-21proc_pri11:45:280
1283699684,5cyclictest10082-21ssh12:35:160
1283999668,6cyclictest0-21swapper/310:10:153
1283699661,53cyclictest23607-21sh09:10:020
1283699647,40cyclictest0-21swapper/007:45:190
1283699642,49cyclictest0-21swapper/011:40:190
1283699641,43cyclictest20794-21latency_hist11:25:020
1283899637,22cyclictest0-21swapper/211:45:152
12836996324,25cyclictest0-21swapper/009:15:160
1283699631,51cyclictest10375-21wc11:10:020
1283699622,49cyclictest0-21swapper/007:25:230
1283699621,7cyclictest28638-21munin-run10:50:020
1283699611,41cyclictest0-21swapper/009:00:150
244482600,1sleep30-21swapper/309:56:183
1283699601,48cyclictest0-21swapper/007:35:210
1283699601,30cyclictest642-21fschecks_time08:05:220
124892605,48sleep00-21swapper/007:09:020
124892605,48sleep00-21swapper/007:09:020
1283699598,37cyclictest0-21swapper/007:30:220
1283699593,39cyclictest0-21swapper/009:45:290
1283699591,32cyclictest11473-21fschecks_count08:35:200
1283999582,9cyclictest0-21swapper/310:00:173
12836995830,5cyclictest8050irq/56-dwc_otg_11:55:170
12836995819,15cyclictest9705-21fschecks_time08:30:190
1283699581,38cyclictest25979-21cat12:15:030
1283699581,28cyclictest31006-21/usr/sbin/munin09:20:230
12836995738,5cyclictest8050irq/56-dwc_otg_10:55:260
12836995729,5cyclictest460-21latency_hist10:10:030
1283699572,45cyclictest0-21swapper/008:55:390
1283699571,40cyclictest3139-21grep09:25:320
1283699571,27cyclictest5489-21grep10:15:310
1283699561,41cyclictest17321-21runrttasks08:50:260
1283699561,40cyclictest20425-21ls09:50:320
1283699561,40cyclictest0-21swapper/010:00:020
1283699561,35cyclictest11388-21basename10:25:180
1283699551,40cyclictest8517-21proc_pri10:20:280
1283699551,40cyclictest8517-21proc_pri10:20:280
1283699551,35cyclictest1531-21ssh12:25:020
1283699551,35cyclictest1531-21ssh12:25:020
1283699551,34cyclictest0-21swapper/009:35:020
1283699541,4cyclictest0-21swapper/010:10:190
12836995339,4cyclictest7950irq/56-dwc_otg_11:05:010
12836995334,6cyclictest7950irq/56-dwc_otg_11:50:300
12836995334,6cyclictest7950irq/56-dwc_otg_11:50:300
1283699532,28cyclictest22313-21head11:25:320
1283699531,19cyclictest0-21swapper/008:40:130
1283699521,39cyclictest17142-21ntpq07:20:240
1283699521,38cyclictest19080-21ssh10:35:240
1283699521,37cyclictest0-21swapper/007:50:310
26262511,41sleep22720-21ls08:10:232
1283699512,27cyclictest0-21swapper/008:25:280
12836995116,23cyclictest4327-21sh12:27:360
1283899501,4cyclictest25826-21ls12:15:022
1283699508,26cyclictest0-21swapper/008:00:020
1283699501,5cyclictest23977-21fschecks_time07:40:190
1283699501,33cyclictest0-21swapper/008:46:230
1283699501,29cyclictest0-21swapper/010:33:490
1283699501,28cyclictest24302-21ssh09:10:220
209992490,2sleep30-21swapper/309:51:353
12836994934,4cyclictest28028-21ls11:35:030
12836994934,4cyclictest28028-21ls11:35:030
12836994927,4cyclictest7950irq/56-dwc_otg_11:10:200
12836994913,33cyclictest23103-21grep10:40:320
1283699491,26cyclictest0-21swapper/011:35:240
1283699491,24cyclictest881450ssh09:35:150
1283699491,24cyclictest15119-21/usr/sbin/munin07:15:240
1283999488,26cyclictest0-21swapper/308:45:143
1283999483,28cyclictest0-21swapper/308:20:133
1283699481,29cyclictest0-21swapper/007:10:230
12836994812,3cyclictest0-21swapper/010:05:030
12839994729,11cyclictest39-21ksoftirqd/309:40:163
1283899477,24cyclictest0-21swapper/209:20:142
1283899476,16cyclictest31-21ksoftirqd/210:10:132
1283899471,22cyclictest7950irq/56-dwc_otg_09:50:322
1283799477,26cyclictest0-21swapper/110:50:161
1283699472,26cyclictest26451-21ssh12:15:200
1283899467,24cyclictest0-21swapper/207:40:152
1283899462,10cyclictest2475-21ls12:25:222
1283799462,9cyclictest0-21swapper/108:40:151
12836994628,4cyclictest7950irq/56-dwc_otg_12:08:160
1283899459,6cyclictest8050irq/56-dwc_otg_09:15:142
47182440,2sleep20-21swapper/210:15:212
1283899448,23cyclictest0-21swapper/210:50:162
1283799447,25cyclictest0-21swapper/107:50:151
12837994411,6cyclictest0-21swapper/108:25:191
1283699442,33cyclictest0-21swapper/008:24:160
1283699442,28cyclictest0-21swapper/012:33:160
1283899436,24cyclictest0-21swapper/209:30:172
1283799438,22cyclictest0-21swapper/108:15:171
1283799438,22cyclictest0-21swapper/108:15:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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