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2023-12-04 - 07:34

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #5

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 rackeslot5s.osadl.org (updated Mon Dec 04, 2023 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4892992828,0cyclictest271rcuc/222:09:102
489299260,25cyclictest7333-21ssh23:39:402
4890992624,1cyclictest0-21swapper/121:35:001
4896992522,2cyclictest597-21dbus-daemon00:00:003
489699250,24cyclictest31420-21diskmemload22:08:153
489699250,1cyclictest0-21swapper/323:18:303
489299250,24cyclictest26198-21ssh00:34:382
489299250,24cyclictest14528-21latency_hist19:30:002
489099250,24cyclictest0-21swapper/122:53:161
4886992523,1cyclictest29263-21memory00:37:480
4886992523,1cyclictest13066-21sh22:35:000
4886992523,1cyclictest0-21swapper/022:25:000
488699250,24cyclictest29432-21apt-get20:02:420
488699250,24cyclictest29239-21perf21:40:000
488699250,24cyclictest27574-21tr00:00:000
488699250,24cyclictest19614-21cron22:05:010
488699250,24cyclictest0-21swapper/021:53:310
488699250,1cyclictest0-21swapper/021:59:480
4896992422,1cyclictest31420-21diskmemload00:27:373
4896992422,1cyclictest19604-21cron22:05:013
489699240,23cyclictest31420-21diskmemload23:12:063
489699240,23cyclictest31420-21diskmemload00:00:483
489699240,23cyclictest0-21swapper/322:22:263
489699240,0cyclictest31420-21diskmemload21:40:113
4892992421,2cyclictest17359-21awk23:50:002
489299240,2cyclictest18640-21systemd-journal23:55:002
489299240,23cyclictest20406-21ssh22:43:422
489299240,1cyclictest0-21swapper/223:00:232
489299240,1cyclictest0-21swapper/221:14:232
489299240,1cyclictest0-21swapper/200:39:532
489099240,24cyclictest0-21swapper/122:48:311
489099240,24cyclictest0-21swapper/121:41:551
489099240,24cyclictest0-21swapper/100:22:391
489099240,23cyclictest0-21swapper/123:28:081
489099240,23cyclictest0-21swapper/123:28:081
489099240,0cyclictest31420-21diskmemload21:24:251
4886992421,2cyclictest28935-21sh23:28:360
4886992421,2cyclictest28935-21sh23:28:360
488699240,24cyclictest0-21swapper/022:09:530
488699240,23cyclictest19261-21cat21:30:000
488699240,0cyclictest0-21swapper/022:54:220
4896992323,0cyclictest31420-21diskmemload21:16:543
4896992323,0cyclictest0-21swapper/323:06:483
4896992323,0cyclictest0-21swapper/322:27:563
4896992323,0cyclictest0-21swapper/322:13:303
4896992323,0cyclictest0-21swapper/321:45:273
4896992323,0cyclictest0-21swapper/321:33:243
4896992323,0cyclictest0-21swapper/300:10:053
4896992322,1cyclictest0-21swapper/321:40:003
4896992321,1cyclictest31363-21cron00:40:003
4896992321,1cyclictest0-21swapper/323:25:583
4896992321,1cyclictest0-21swapper/323:25:583
4896992320,2cyclictest8470-21rm23:41:113
4896992320,2cyclictest10950-21apt-get20:30:023
489699230,2cyclictest3344-21ssh23:35:493
489699230,23cyclictest0-21swapper/322:48:233
489699230,22cyclictest9701-21sh21:20:183
489699230,22cyclictest6140-21cron20:20:003
489699230,22cyclictest21722-21cron19:45:013
489699230,1cyclictest22660-21cron23:55:003
489699230,1cyclictest19039-21ssh21:29:403
489699230,1cyclictest10999-21ssh21:56:403
489699230,0cyclictest31420-21diskmemload21:50:273
4892992323,0cyclictest0-21swapper/223:56:212
4892992323,0cyclictest0-21swapper/223:31:082
4892992323,0cyclictest0-21swapper/222:39:422
4892992323,0cyclictest0-21swapper/222:30:412
4892992323,0cyclictest0-21swapper/221:32:472
4892992321,1cyclictest271rcuc/222:57:102
4892992321,1cyclictest0-21swapper/222:50:412
4892992321,0cyclictest0-21swapper/221:51:232
4892992320,2cyclictest2326-21sh21:45:322
489299230,23cyclictest0-21swapper/223:41:412
489299230,23cyclictest0-21swapper/221:40:452
489299230,22cyclictest31272-21ssh22:17:502
489299230,22cyclictest29579-21sh23:29:422
489299230,22cyclictest29579-21sh23:29:422
489299230,22cyclictest27482-21ntp_states22:12:542
489299230,22cyclictest20116-21gpg-connect-age23:20:012
489299230,22cyclictest18262-21ssh23:17:452
489299230,22cyclictest15997-21ssh21:27:282
489299230,22cyclictest12295-21ssh21:22:512
489299230,22cyclictest10658-21ssh23:08:332
489299230,22cyclictest0-21swapper/222:24:532
489299230,1cyclictest0-21swapper/221:16:022
489299230,0cyclictest31420-21diskmemload00:09:112
489299230,0cyclictest271rcuc/200:26:442
489299230,0cyclictest0-21swapper/221:38:512
489299230,0cyclictest0-21swapper/200:20:422
4890992323,0cyclictest0-21swapper/123:42:111
4890992323,0cyclictest0-21swapper/122:35:171
4890992323,0cyclictest0-21swapper/122:30:501
4890992323,0cyclictest0-21swapper/122:24:461
4890992323,0cyclictest0-21swapper/122:17:221
4890992323,0cyclictest0-21swapper/121:13:051
4890992323,0cyclictest0-21swapper/100:30:211
4890992322,1cyclictest774-21runrttasks23:22:521
4890992322,1cyclictest22961-21kworker/u8:323:59:491
4890992321,1cyclictest0-21swapper/122:10:561
4890992321,1cyclictest0-21swapper/121:48:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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