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2024-04-27 - 06:30

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #7

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 50 highest latencies:
System rack0slot7s.osadl.org (updated Sat Apr 27, 2024 00:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2196258211871,20sleep10-21swapper/119:08:381
2196100211464,20sleep00-21swapper/019:06:410
2196035211365,18sleep20-21swapper/219:05:502
2196207211269,36sleep30-21swapper/319:08:003
219650599560,35cyclictest0-21swapper/219:17:042
112099280,3ntpd2323343-21ntpq00:25:191
112099280,3ntpd2283554-21ntpq22:45:193
112099200,2ntpd2255780-21ntpq21:35:181
2196505991918,1cyclictest0-21swapper/220:10:352
229699170,2rtkit-daemon2295-21rtkit-daemon19:26:342
2196505991716,1cyclictest1026-21snmpd21:04:312
219650899167,9cyclictest0-21swapper/300:11:523
219650899160,15cyclictest0-21swapper/319:56:223
2196505991615,1cyclictest1026-21snmpd21:09:102
2196505991615,1cyclictest1026-21snmpd20:43:352
2196503991614,1cyclictest1026-21snmpd23:22:021
2196503991614,1cyclictest1026-21snmpd19:14:531
229699150,2rtkit-daemon2295-21rtkit-daemon23:09:093
219650899156,9cyclictest0-21swapper/323:32:333
219650899155,9cyclictest0-21swapper/321:11:093
219650899150,15cyclictest0-21swapper/319:47:223
219650399150,7cyclictest0-21swapper/122:06:341
219649899152,13cyclictest0-21swapper/020:39:090
2196498991515,0cyclictest0-21swapper/022:31:060
219649899150,15cyclictest0-21swapper/023:30:200
219649899150,15cyclictest0-21swapper/020:43:390
112099150,3ntpd0-21swapper/322:30:203
219650899146,8cyclictest0-21swapper/320:22:443
219650899145,9cyclictest0-21swapper/322:22:543
219650899145,9cyclictest0-21swapper/319:34:333
2196508991412,1cyclictest1026-21snmpd20:55:183
2196503991411,2cyclictest1026-21snmpd19:56:221
219650399140,1cyclictest0-21swapper/123:05:171
219650399140,13cyclictest0-21swapper/119:50:121
219649899146,8cyclictest0-21swapper/019:27:260
219649899145,9cyclictest0-21swapper/023:46:570
219649899145,9cyclictest0-21swapper/020:29:020
2196498991414,0cyclictest0-21swapper/019:36:270
112099140,0ntpd0-21swapper/319:40:203
219650899134,9cyclictest0-21swapper/322:54:253
219650899134,9cyclictest0-21swapper/300:34:043
2196508991312,1cyclictest0-21swapper/321:28:493
2196508991312,1cyclictest0-21swapper/320:50:333
219650899130,4cyclictest0-21swapper/322:01:053
2196505991311,1cyclictest1026-21snmpd23:30:202
2196503991311,1cyclictest1026-21snmpd23:10:051
219650399130,1cyclictest0-21swapper/119:45:221
219650399130,13cyclictest0-21swapper/120:55:151
219649899134,9cyclictest0-21swapper/023:43:300
219649899134,9cyclictest0-21swapper/021:34:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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