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2025-12-01 - 14:50

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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.
Unexpectedly long latencies may be caused by SMIs
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 rack5slot3s.osadl.org (updated Mon Dec 01, 2025 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
228062236163,24sleep30-21swapper/307:09:083
228102232162,57sleep20-21swapper/207:09:112
225582227154,60sleep00-21swapper/007:05:550
226592207169,25sleep10-21swapper/107:07:131
1119721600,4sleep12296999cyclictest11:35:121
1040021350,3sleep12296999cyclictest09:05:191
22974999793,3cyclictest0-21swapper/210:51:082
185572610,7sleep1221ktimersoftd/108:10:151
67742530,4sleep36775-21unixbench-2d08:55:253
272942510,1sleep00-21swapper/007:15:230
22962993910,12cyclictest7011-21basename12:40:010
251712370,3sleep10-21swapper/108:25:171
141432360,1sleep20-21swapper/210:25:282
2297499341,23cyclictest29814-21unixbench_singl07:20:262
2296999341,13cyclictest0-21swapper/107:30:191
2296999331,16cyclictest0-21swapper/108:20:221
2296999331,15cyclictest22192-21latency10:45:191
2296999331,12cyclictest0-21swapper/111:15:241
2296999321,13cyclictest30738-21cat12:20:021
2296999311,15cyclictest0-21swapper/110:20:171
22979993012,15cyclictest14516-21idleruntime-cro10:30:013
2296999308,3cyclictest0-21swapper/109:32:281
2296999305,3cyclictest3198-40dnf10:00:591
2296999292,12cyclictest7934-21munin-run10:15:001
2296999291,2cyclictest0-21swapper/111:20:301
2296999287,19cyclictest8154-21sed09:00:161
2296999287,19cyclictest8154-21sed09:00:161
22969992811,3cyclictest28328-21netstat09:45:211
22969992811,3cyclictest16196-21latency_hist09:20:021
2296999281,12cyclictest0-21swapper/112:24:021
2296999281,12cyclictest0-21swapper/111:09:101
2296999281,12cyclictest0-21swapper/111:09:101
2296999281,12cyclictest0-21swapper/111:00:061
2296999281,12cyclictest0-21swapper/110:30:271
2296999281,11cyclictest0-21swapper/110:36:031
2296999281,11cyclictest0-21swapper/109:37:491
240712270,3sleep224076-21pmu-power09:35:222
2296999271,9cyclictest0-21swapper/112:03:401
22969992712,4cyclictest496-21jbd2/dm-0-810:55:231
2296299271,13cyclictest27722-21munin-run11:00:010
2296999269,3cyclictest4031-21memory08:50:191
2296999268,3cyclictest12566-21expr09:10:161
2296999261,3cyclictest0-21swapper/112:28:361
2296999261,12cyclictest0-21swapper/111:41:341
2296999261,11cyclictest0-21swapper/109:24:101
2296999261,10cyclictest0-21swapper/112:38:161
2296299267,16cyclictest8560-21munin-run11:30:000
2296299261,13cyclictest20491-21munin-run09:30:020
2297999251,16cyclictest0-21swapper/310:05:053
2297499254,8cyclictest0-21swapper/211:45:242
2296999251,12cyclictest0-21swapper/107:25:131
2296999251,10cyclictest0-21swapper/111:12:501
2296999251,10cyclictest0-21swapper/108:15:301
2296299256,16cyclictest27102-21munin-run09:45:010
2296299253,9cyclictest2227250kworker/u8:109:10:350
2296299251,5cyclictest0-21swapper/011:49:230
2296299251,4cyclictest0-21swapper/012:12:230
2296299251,4cyclictest0-21swapper/012:12:230
22979992420,3cyclictest0-21swapper/308:19:573
2297999241,3cyclictest0-21swapper/311:40:293
2297499247,3cyclictest0-21swapper/212:05:282
2297499245,6cyclictest88250irq/135-enp2s0-07:15:162
2296999242,5cyclictest0-21swapper/112:05:221
2296999241,7cyclictest0-21swapper/109:26:441
2296999241,13cyclictest0-21swapper/110:28:211
2296999241,10cyclictest0-21swapper/108:42:131
2296299241,6cyclictest0-21swapper/012:26:100
2296299241,6cyclictest0-21swapper/010:14:020
2296299241,5cyclictest0-21swapper/011:50:030
2296299241,11cyclictest9507-21awk09:05:010
2296299241,11cyclictest9507-21awk09:05:010
2296299241,10cyclictest25328-21cut12:05:220
2297999234,4cyclictest24525-21awk09:35:273
2297999231,9cyclictest0-21swapper/309:55:183
22979992318,3cyclictest29379-21if_err_enp1s012:15:193
2297999231,6cyclictest0-21swapper/310:51:233
2297999231,11cyclictest23659-40dnf12:01:153
2297999231,10cyclictest0-21swapper/308:39:433
2297999230,10cyclictest0-21swapper/309:20:193
2297499238,4cyclictest11861-21cat09:10:012
2297499233,9cyclictest0-21swapper/212:01:162
2296999234,3cyclictest0-21swapper/111:56:401
2296999233,3cyclictest0-21swapper/111:45:081
2296999231,6cyclictest0-21swapper/110:42:571
22969992315,3cyclictest0-21swapper/107:20:411
2296999231,16cyclictest0-21swapper/107:41:061
2296999231,14cyclictest10352-21unixbench_singl11:30:281
2296999231,12cyclictest0-21swapper/108:45:261
2296999231,11cyclictest0-21swapper/110:15:131
2296999231,11cyclictest0-21swapper/108:35:171
2296999231,10cyclictest0-21swapper/111:25:181
2296299233,10cyclictest30126-21gltestperf09:50:160
2296299231,6cyclictest0-21swapper/011:22:250
123152231,4sleep312554-21gltestperf09:10:163
44592220,2sleep20-21swapper/211:20:132
300072220,5sleep230010-21pmu-power08:35:292
2297999222,12cyclictest0-21swapper/309:32:483
2297999221,4cyclictest0-21swapper/311:56:293
2297999221,15cyclictest0-21swapper/310:37:263
2297999221,15cyclictest0-21swapper/309:40:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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