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2026-08-13 - 16:23

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 Aug 13, 2026 12:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1077021520,2chrt0-21swapper/012:04:010
3274821330,2chrt0-21swapper/311:34:103
990321180,2sleep131902-21cyclictest09:08:591
990321180,2sleep131902-21cyclictest09:08:591
3176021140,2sleep10-21swapper/111:33:591
222142920,2chrt0-21swapper/111:08:551
222142920,2chrt0-21swapper/111:08:551
269232560,3sleep20-21swapper/208:28:482
43532550,9sleep016-21ksoftirqd/008:53:590
298642540,2sleep029979-21grep08:34:100
298642540,2sleep029979-21grep08:34:100
140202510,1sleep114082-21cpu07:53:591
31602500,2sleep016-21ksoftirqd/008:49:090
31602500,2sleep016-21ksoftirqd/008:49:090
31903994922,25cyclictest1929-21gltestperf10:14:020
218212490,3chrt0-21swapper/009:39:090
218212490,3chrt0-21swapper/009:39:090
3190399480,10cyclictest1167-21seq10:11:090
3190399480,10cyclictest1167-21seq10:11:090
3190399471,8cyclictest9728-21chrt07:39:580
3190399471,8cyclictest9728-21chrt07:39:580
3190399467,25cyclictest293622chrt11:27:030
3190399461,8cyclictest4337-21seq11:46:000
3190399461,8cyclictest4337-21seq11:46:000
3190399461,8cyclictest24380-21chrt09:47:420
3190399461,8cyclictest24380-21chrt09:47:420
3190399461,8cyclictest13068-21chrt09:16:540
3190399461,8cyclictest13068-21chrt09:16:540
3190399461,32cyclictest23550-21runrttasks11:09:300
3190399460,10cyclictest14768-21seq09:19:280
3190399460,10cyclictest14768-21seq09:19:280
3190399460,10cyclictest14768-21seq09:19:280
308932460,2sleep30-21swapper/310:04:053
3190399457,23cyclictest161442chrt10:50:210
3190399457,23cyclictest161442chrt10:50:210
3190399451,9cyclictest6181-21taskset11:50:260
3190399451,9cyclictest20586-21chrt09:37:040
3190399451,7cyclictest17453-21taskset12:20:090
3190399451,7cyclictest17453-21taskset12:20:090
3190399451,7cyclictest17453-21taskset12:20:090
3190399451,7cyclictest13477-21taskset07:50:030
3190399451,7cyclictest13477-21taskset07:50:030
3190399451,6cyclictest5005-21chrt10:22:230
3190399451,6cyclictest5005-21chrt10:22:230
3190399450,9cyclictest32717-21taskset08:43:570
3190399442,3cyclictest0-21swapper/012:40:440
3190399442,3cyclictest0-21swapper/012:40:440
3190399441,7cyclictest749-21runrttasks12:27:530
3190399441,4cyclictest313402sleep011:33:300
3190399441,4cyclictest313402sleep011:33:300
3190399441,3cyclictest700-21192.168.115.40-manager08:14:370
3190399441,28cyclictest749-21runrttasks08:06:180
3190399441,28cyclictest749-21runrttasks08:06:180
3190399440,5cyclictest700-21192.168.115.40-manager10:25:410
3190399440,5cyclictest700-21192.168.115.40-manager10:25:410
3190399440,3cyclictest700-21192.168.115.40-manager08:20:340
3190399440,3cyclictest700-21192.168.115.40-manager08:20:340
3190399433,25cyclictest0-21swapper/009:24:490
3190399431,7cyclictest26657-21runrttasks08:25:570
3190399431,7cyclictest10124-21seq12:02:210
3190399431,7cyclictest10124-21seq12:02:210
3190399430,9cyclictest31797-21seq10:06:590
3190399430,6cyclictest8712-21runrttasks10:31:310
3190399430,6cyclictest8712-21runrttasks10:31:310
3190399430,27cyclictest279902chrt09:56:140
216582430,1chrt21659-21sort08:14:001
3190399421,8cyclictest32372-21seq08:42:330
3190399421,8cyclictest32372-21seq08:42:330
3190399421,8cyclictest21989-21taskset11:08:250
3190399421,8cyclictest21989-21taskset11:08:250
3190399421,3cyclictest0-21swapper/010:45:540
3190399421,3cyclictest0-21swapper/007:57:360
3190399420,4cyclictest18632-21seq09:30:530
3190399420,3cyclictest700-21192.168.115.40-manager12:36:440
31905994135,4cyclictest547-21rs:main1
3190399411,3cyclictest0-21swapper/012:33:450
3190399410,7cyclictest2382-21seq11:40:060
3190399410,7cyclictest2382-21seq11:40:060
3190399410,2cyclictest700-21192.168.115.40-manager10:36:400
3190399410,2cyclictest700-21192.168.115.40-manager10:36:400
3190399401,3cyclictest0-21swapper/012:16:140
3190399401,3cyclictest0-21swapper/012:16:140
3190399401,3cyclictest0-21swapper/011:23:420
3190399401,3cyclictest0-21swapper/011:23:420
3190399401,3cyclictest0-21swapper/011:16:420
3190399401,3cyclictest0-21swapper/010:00:400
3190399401,3cyclictest0-21swapper/010:00:400
3190399401,3cyclictest0-21swapper/008:03:360
3190399401,3cyclictest0-21swapper/008:03:360
3190399401,3cyclictest0-21swapper/007:38:050
3190399401,3cyclictest0-21swapper/007:38:050
3190399401,3cyclictest0-21swapper/007:31:060
3190399401,10cyclictest16638-21acpi10:53:580
115022400,11sleep1281ktimers/112:04:101
31903993919,18cyclictest0-21swapper/008:59:000
31903993919,18cyclictest0-21swapper/008:59:000
31903993915,22cyclictest0-21swapper/010:39:090
31903993915,22cyclictest0-21swapper/010:39:090
3190399391,3cyclictest0-21swapper/011:57:130
3190399391,3cyclictest0-21swapper/011:38:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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