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2025-04-21 - 09:41

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Mon Apr 21, 2025 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24184210997,7sleep20-21swapper/219:06:192
24125210991,12sleep10-21swapper/119:05:381
23081210980,21sleep00-21swapper/019:05:170
22842210177,16sleep30-21swapper/319:05:163
93422790,5sleep22454499cyclictest00:01:462
178152740,1sleep3381ktimersoftd/323:36:183
302862730,1sleep1221ktimersoftd/122:40:151
312752700,1sleep2301ktimersoftd/222:40:282
323392690,0sleep30-21swapper/321:33:283
220042660,0sleep20-21swapper/221:20:532
245012310,1sleep10-21swapper/100:19:171
2454299220,16cyclictest0-21swapper/022:56:030
2454299210,19cyclictest0-21swapper/020:30:150
24544992017,2cyclictest28242-21kworker/u8:322:09:032
2454299200,18cyclictest0-21swapper/022:10:080
24544991916,2cyclictest28242-21kworker/u8:322:29:042
24544991916,2cyclictest27283-21kworker/u8:222:02:032
24544991916,2cyclictest13345-21kworker/u8:121:57:032
24544991815,2cyclictest9751-21kworker/u8:021:14:032
24544991815,2cyclictest2200-21kworker/u8:023:22:032
24544991815,2cyclictest12570-21kworker/u8:220:20:042
24544991815,2cyclictest12570-21kworker/u8:220:19:032
24544991815,2cyclictest10629-21kworker/u8:122:24:022
2454499181,2cyclictest29-21rcuc/223:53:042
2454299180,17cyclictest0-21swapper/022:34:020
17262180,0sleep21728-21dpkg23:55:122
24545991714,2cyclictest25940-21kworker/u8:123:46:043
24545991714,2cyclictest17338-21kworker/u8:000:11:043
24545991712,3cyclictest15369-21sort21:50:103
24544991714,2cyclictest8570-21kworker/u8:123:28:032
24544991714,2cyclictest31072-21kworker/u8:019:32:042
24544991714,2cyclictest23607-21kworker/u8:022:46:062
24544991714,2cyclictest10629-21kworker/u8:122:31:032
24543991714,2cyclictest12570-21kworker/u8:220:25:031
24545991613,2cyclictest3776-21kworker/u8:023:58:033
2454599160,14cyclictest0-21swapper/322:50:193
2454599160,14cyclictest0-21swapper/300:02:403
24544991613,2cyclictest9362-21kworker/u8:119:17:042
24544991613,2cyclictest873-21kworker/u8:121:39:032
24544991613,2cyclictest873-21kworker/u8:121:39:032
24544991613,2cyclictest873-21kworker/u8:121:32:042
24544991613,2cyclictest873-21kworker/u8:121:03:032
24544991613,2cyclictest6970-21kworker/u8:119:53:032
24544991613,2cyclictest32441-21kworker/u8:122:59:032
24544991613,2cyclictest28490-21kworker/u8:219:26:032
24544991613,2cyclictest28242-21kworker/u8:322:12:042
24544991613,2cyclictest22104-21kworker/u8:323:07:032
24544991613,2cyclictest20019-21kworker/u8:022:17:032
24544991613,2cyclictest15378-21kworker/u8:120:36:022
24544991613,2cyclictest13345-21kworker/u8:121:51:032
24544991613,2cyclictest12570-21kworker/u8:219:59:042
24544991613,2cyclictest12020-21kworker/u8:100:22:032
24544991613,2cyclictest12020-21kworker/u8:100:07:032
24543991613,2cyclictest14407-21kworker/u8:023:45:031
167522160,0sleep10-21swapper/121:15:341
24545991512,2cyclictest10629-21kworker/u8:122:22:023
2454599150,14cyclictest3806-21ssh23:20:393
2454599150,14cyclictest0-21swapper/320:45:003
2454599150,14cyclictest0-21swapper/300:38:003
2454599150,13cyclictest0-21swapper/323:40:133
2454599150,13cyclictest0-21swapper/322:47:503
2454599150,13cyclictest0-21swapper/300:15:053
24544991512,2cyclictest8570-21kworker/u8:123:38:052
24544991512,2cyclictest6970-21kworker/u8:119:48:032
24544991512,2cyclictest31072-21kworker/u8:019:37:032
24544991512,2cyclictest30359-21kworker/u8:000:31:032
24544991512,2cyclictest23705-21kworker/u8:200:18:052
24544991512,2cyclictest16041-21kworker/u8:023:02:042
24544991512,2cyclictest15378-21kworker/u8:120:30:022
24544991512,2cyclictest15378-21kworker/u8:120:13:032
24544991512,2cyclictest12570-21kworker/u8:220:03:032
24544991512,2cyclictest12020-21kworker/u8:100:10:032
2454499151,12cyclictest0-21swapper/222:35:062
2454499150,3cyclictest31704-21sed20:45:002
2454499150,13cyclictest24016-21fschecks_count20:25:132
24543991512,2cyclictest221ktimersoftd/122:58:331
24543991512,2cyclictest0-21swapper/122:18:231
24543991512,2cyclictest0-21swapper/100:39:121
24543991510,4cyclictest0-21swapper/119:40:191
2454399150,2cyclictest0-21swapper/100:08:521
2454399150,13cyclictest0-21swapper/123:00:171
2454399150,13cyclictest0-21swapper/121:40:231
2454399150,13cyclictest0-21swapper/121:40:221
2454399150,13cyclictest0-21swapper/120:55:151
24542991512,2cyclictest32441-21kworker/u8:122:53:060
2454299150,13cyclictest0-21swapper/023:45:020
24545991411,2cyclictest28242-21kworker/u8:322:06:033
24545991411,2cyclictest0-21swapper/323:28:303
24545991411,2cyclictest0-21swapper/322:39:003
24545991411,2cyclictest0-21swapper/322:32:093
24545991411,2cyclictest0-21swapper/321:40:213
24545991411,2cyclictest0-21swapper/321:40:203
24545991411,2cyclictest0-21swapper/319:45:173
2454599140,3cyclictest0-21swapper/321:55:023
2454599140,2cyclictest0-21swapper/323:34:393
2454599140,13cyclictest19136-21ssh22:29:403
2454599140,13cyclictest0-21swapper/323:18:593
2454599140,13cyclictest0-21swapper/322:40:023
2454599140,13cyclictest0-21swapper/321:16:013
2454599140,13cyclictest0-21swapper/300:23:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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