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2023-10-03 - 05:02

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, 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 
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  Intel
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 rack1slot6s.osadl.org (updated Tue Oct 03, 2023 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23734991059,24cyclictest0-21swapper/320:54:513
23734991059,24cyclictest0-21swapper/320:54:513
23734991008,80cyclictest0-21swapper/318:24:573
2372799994,53cyclictest0-21swapper/021:30:280
2372799994,51cyclictest0-21swapper/023:35:290
23727999837,10cyclictest26420-21unixbench_singl19:30:350
23727999837,10cyclictest26420-21unixbench_singl19:30:350
23727999836,10cyclictest19005-21grep22:30:090
2372799974,42cyclictest0-21swapper/022:05:050
2373499964,27cyclictest0-21swapper/322:50:293
2373499934,39cyclictest21019-21sendmail_mailqu19:20:323
2373499934,39cyclictest0-21swapper/323:19:453
23734999329,15cyclictest0-21swapper/322:00:213
23734999314,27cyclictest32481-21gltestperf18:40:233
2373499925,34cyclictest1274-21runrttasks19:29:363
243699910,5rtkit-daemon2435-21rtkit-daemon21:24:182
2373499914,36cyclictest0-21swapper/319:15:293
2373499904,39cyclictest24225-21hwlatdetect21:35:203
2373499904,39cyclictest24225-21hwlatdetect21:35:203
23734999021,10cyclictest29475-21unixbench_multi20:40:343
2373499895,36cyclictest0-21swapper/321:20:283
2373499895,26cyclictest0-21swapper/322:32:273
23734998917,12cyclictest27111-21telnet19:35:113
2373499886,34cyclictest0-21swapper/321:05:213
2373499885,25cyclictest0-21swapper/320:47:093
2373499884,28cyclictest0-21swapper/322:10:103
23734998827,11cyclictest6209-21needreboot19:55:253
2373199884,77cyclictest19757-21cpuspeed_turbos19:20:141
2373499875,26cyclictest0-21swapper/321:54:493
2373499875,13cyclictest0-21swapper/322:40:033
2373499874,13cyclictest0-21swapper/321:29:493
23734998739,40cyclictest0-21swapper/321:34:493
2373499865,34cyclictest0-21swapper/319:00:303
2373199854,74cyclictest0-21swapper/122:40:251
2373199854,73cyclictest31863-21munin-run19:44:531
23734998433,10cyclictest24483-21unixbench_singl20:30:333
23734998410,20cyclictest0-21swapper/322:04:493
2373199843,73cyclictest19238-21munin-node23:35:051
2373499834,27cyclictest0-21swapper/318:50:233
2373499834,27cyclictest0-21swapper/318:50:233
2373199833,72cyclictest15585-21munin-node23:25:191
2373499824,35cyclictest0-21swapper/323:45:233
2373199824,71cyclictest0-21swapper/120:35:211
2373199824,71cyclictest0-21swapper/119:55:321
2373199823,73cyclictest0-21swapper/120:12:511
2373199814,70cyclictest0-21swapper/122:09:481
2373199814,70cyclictest0-21swapper/119:19:121
2373199814,58cyclictest8871-21crond23:14:451
2373199813,71cyclictest0-21swapper/120:05:191
2373199813,70cyclictest20041-21munin-node20:25:121
2373199813,70cyclictest1222-21snmpd20:32:061
2373199813,64cyclictest21800-21fschecks_count22:35:121
2373499804,25cyclictest0-21swapper/319:52:003
2373199804,69cyclictest26836-21cut18:30:171
2373199804,69cyclictest0-21swapper/123:00:211
2373199804,69cyclictest0-21swapper/120:59:501
2373199804,57cyclictest0-21swapper/120:40:131
2373199803,70cyclictest396-21fschecks_time19:45:181
2373199803,62cyclictest798-21munin-node21:55:261
2373199803,60cyclictest17562-21telnet20:20:071
2373199802,70cyclictest25217-21taskset21:37:031
2373199802,70cyclictest25217-21taskset21:37:031
2373499794,35cyclictest0-21swapper/323:05:053
2373199795,67cyclictest0-21swapper/121:20:311
2373199794,68cyclictest0-21swapper/122:15:251
2373199794,68cyclictest0-21swapper/118:54:561
2373199794,68cyclictest0-21swapper/118:54:561
2373199784,67cyclictest0-21swapper/123:33:431
2373199783,69cyclictest26547-21cpuspeed_turbos22:45:061
2373199783,59cyclictest0-21swapper/121:42:181
2373199783,57cyclictest0-21swapper/118:55:171
2373199783,56cyclictest26452-21vmstat19:30:361
2373199783,56cyclictest26452-21vmstat19:30:361
2373199774,64cyclictest0-21swapper/123:20:221
2373199774,58cyclictest0-21swapper/123:05:031
2373199774,58cyclictest0-21swapper/122:54:461
2373199774,55cyclictest0-21swapper/123:40:031
2373199774,55cyclictest0-21swapper/123:40:031
2373199773,66cyclictest19816-21irqstats22:30:201
2373199773,58cyclictest0-21swapper/122:12:231
2373199773,58cyclictest0-21swapper/119:54:041
2373199772,68cyclictest20604-21munin-node21:30:321
2373499765,26cyclictest0-21swapper/319:31:573
2373499765,26cyclictest0-21swapper/319:31:573
2373199764,54cyclictest26821-21munin-node23:50:131
2373199764,54cyclictest0-21swapper/120:45:111
2373199763,67cyclictest10253-21latency_hist21:09:511
2373199763,66cyclictest947-21runrttasks22:57:201
2373199763,66cyclictest0-21swapper/123:15:031
2373199763,58cyclictest13698-21chrt22:20:041
2373199763,58cyclictest0-21swapper/121:25:291
2373199763,56cyclictest13231-21cpu21:15:061
2373199754,65cyclictest0-21swapper/118:39:551
2373199753,66cyclictest0-21swapper/119:11:491
2373199753,66cyclictest0-21swapper/119:09:341
2373199753,65cyclictest31625-21aten2.4-expect18:40:151
2373199753,65cyclictest12773-21latency_hist21:14:501
2373199753,58cyclictest7392-21munin-node20:00:351
2373199752,67cyclictest24361-21aten2.4-expect23:45:041
23732997421,36cyclictest0-21swapper/221:35:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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