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2026-09-03 - 07:43

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 Sep 03, 2026 00:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
100832890,3sleep30-21swapper/322:09:183
100832890,3sleep30-21swapper/322:09:183
20962820,3sleep30-21swapper/320:19:283
20962820,3sleep30-21swapper/320:19:283
118132780,3sleep30-21swapper/323:39:233
118132780,3sleep30-21swapper/323:39:233
118132780,3sleep30-21swapper/323:39:233
278142760,3sleep30-21swapper/322:54:293
278142760,3sleep30-21swapper/322:54:293
267532740,2sleep026860-21wc19:59:280
267532740,2sleep026860-21wc19:59:280
22872640,3sleep30-21swapper/321:49:123
22872640,3sleep30-21swapper/321:49:123
171962640,3sleep30-21swapper/320:59:283
171962640,3sleep30-21swapper/320:59:283
81672590,2sleep20-21swapper/223:29:252
81672590,2sleep20-21swapper/223:29:252
96562550,3sleep20-21swapper/222:09:062
96562550,3sleep20-21swapper/222:09:062
155242550,3sleep20-21swapper/222:24:172
155242550,3sleep20-21swapper/222:24:172
48792540,3chrt4882-21needreboot21:54:280
166232530,4sleep30-21swapper/323:54:063
166232530,4sleep30-21swapper/323:54:063
298972520,3chrt0-21swapper/222:59:302
298972520,3chrt0-21swapper/222:59:302
259032520,2sleep20-21swapper/221:24:232
259032520,2sleep20-21swapper/221:24:232
9575995027,15cyclictest20473-21sed00:04:110
9575995027,15cyclictest20473-21sed00:04:110
9575995027,15cyclictest20473-21sed00:04:110
957899470,32cyclictest13188-21sendmail_mailst20:49:271
957899470,32cyclictest13188-21sendmail_mailst20:49:271
152962470,2sleep0171ktimers/022:24:070
152962470,2sleep0171ktimers/022:24:070
957899451,29cyclictest20134-21taskset19:43:511
957899451,27cyclictest18340-21sed19:39:081
957899451,27cyclictest11930-21seq20:47:021
287412450,3sleep30-21swapper/300:24:213
281562450,3sleep20-21swapper/220:04:192
136182450,3sleep30-21swapper/323:44:213
136182450,3sleep30-21swapper/323:44:213
9578994420,22cyclictest9570-21cyclictest20:09:321
957899441,29cyclictest6983-21seq23:25:531
957899441,29cyclictest18461-21taskset23:58:501
957899441,29cyclictest18461-21taskset23:58:501
957899440,29cyclictest5786-21chrt21:57:551
957899431,23cyclictest749-21runrttasks00:03:281
957899431,23cyclictest749-21runrttasks00:03:281
957899431,23cyclictest749-21runrttasks00:03:281
957899430,41cyclictest700-21192.168.115.40-manager22:13:001
957899430,41cyclictest700-21192.168.115.40-manager22:13:001
957899430,41cyclictest700-21192.168.115.40-manager00:28:351
957899428,21cyclictest23982-21seq00:12:371
957899421,25cyclictest614-21seq20:16:551
957899421,25cyclictest614-21seq20:16:551
957899420,40cyclictest700-21192.168.115.40-manager00:06:051
957899420,40cyclictest700-21192.168.115.40-manager00:06:051
957899411,27cyclictest15997-21cut20:59:111
957899411,26cyclictest749-21runrttasks23:22:521
957899411,26cyclictest749-21runrttasks23:22:521
957899411,24cyclictest17596-21seq21:02:421
957899411,24cyclictest17596-21seq21:02:421
957899410,39cyclictest700-21192.168.115.40-manager23:34:341
957899410,39cyclictest700-21192.168.115.40-manager22:32:361
957899410,38cyclictest700-21192.168.115.40-manager22:38:301
957899410,38cyclictest700-21192.168.115.40-manager00:39:351
957899410,38cyclictest700-21192.168.115.40-manager00:39:351
957899410,27cyclictest3111-21seq23:14:441
957899410,27cyclictest15123-21taskset22:22:071
957899410,27cyclictest15123-21taskset22:22:071
957899410,25cyclictest30070-21taskset23:01:331
957899410,25cyclictest30070-21taskset23:01:331
9575994132,7cyclictest729-21dbus-daemon23:24:060
9575994132,7cyclictest729-21dbus-daemon23:24:060
957899401,23cyclictest749-21runrttasks22:51:481
957899401,23cyclictest749-21runrttasks22:51:481
957899401,23cyclictest21727-21taskset19:45:041
957899401,22cyclictest4288-21seq20:25:361
957899400,38cyclictest700-21192.168.115.40-manager00:31:391
957899400,38cyclictest700-21192.168.115.40-manager00:31:391
957899400,37cyclictest700-21192.168.115.40-manager21:41:591
957899400,37cyclictest700-21192.168.115.40-manager21:41:591
54502400,3sleep30-21swapper/320:29:203
9578993915,22cyclictest14678-21systemd-journal22:25:281
9578993915,22cyclictest14678-21systemd-journal22:25:281
957899391,36cyclictest700-21192.168.115.40-manager21:05:001
957899391,36cyclictest700-21192.168.115.40-manager21:05:001
957899391,36cyclictest700-21192.168.115.40-manager00:23:371
957899391,36cyclictest700-21192.168.115.40-manager00:23:371
957899391,25cyclictest14927-21runrttasks23:49:131
957899391,25cyclictest14927-21runrttasks23:49:131
957899391,24cyclictest749-21runrttasks22:56:061
957899391,24cyclictest749-21runrttasks22:56:061
957899391,22cyclictest1372-21taskset23:11:251
957899391,22cyclictest1372-21taskset23:11:251
957899390,37cyclictest700-21192.168.115.40-manager23:32:111
957899390,37cyclictest700-21192.168.115.40-manager23:32:111
957899390,37cyclictest700-21192.168.115.40-manager22:40:051
957899390,37cyclictest700-21192.168.115.40-manager22:40:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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