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2024-07-27 - 14:21

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #3

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 rack0slot3s.osadl.org (updated Sat Jul 27, 2024 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10022212279272,4sleep40-21swapper/419:06:044
10021872256214,13sleep30-21swapper/319:05:383
10024532251213,12sleep20-21swapper/219:09:152
10023232250210,13sleep10-21swapper/119:07:291
10024052247212,26sleep50-21swapper/519:08:385
10024002244207,26sleep00-21swapper/019:08:330
10023982239218,12sleep70-21swapper/719:08:327
10024392236214,12sleep60-21swapper/619:09:036
1002780993634,2cyclictest1650-21snmpd23:31:264
1002788993535,0cyclictest0-21swapper/720:06:247
100278899350,34cyclictest0-21swapper/719:40:417
1002780993521,1cyclictest1650-21snmpd20:44:024
1002788993434,0cyclictest0-21swapper/700:19:147
100278899340,34cyclictest0-21swapper/719:51:177
100278899340,33cyclictest982597-21kworker/7:0+mm_percpu_wq21:59:267
1002776993229,2cyclictest1650-21snmpd23:47:353
1002785993129,2cyclictest1650-21snmpd23:46:206
1002780993028,1cyclictest1650-21snmpd23:54:244
1002780993028,1cyclictest1650-21snmpd23:54:244
1002769993029,1cyclictest0-21swapper/022:09:410
1002785992928,0cyclictest0-21swapper/623:54:246
1002785992928,0cyclictest0-21swapper/623:54:246
1002776992926,2cyclictest1650-21snmpd00:28:373
1002771992929,0cyclictest0-21swapper/123:54:241
1002771992929,0cyclictest0-21swapper/123:54:241
1002788992725,2cyclictest0-21swapper/720:21:057
1002776992727,0cyclictest0-21swapper/323:08:103
1002769992727,0cyclictest0-21swapper/022:37:480
1002785992624,1cyclictest0-21swapper/619:51:546
1002782992625,1cyclictest0-21swapper/519:27:175
1002776992626,0cyclictest0-21swapper/322:25:593
1002774992626,0cyclictest0-21swapper/219:54:212
1002785992522,2cyclictest1650-21snmpd20:22:166
1002785992522,1cyclictest10030891kworker/u16:3+i91519:14:596
100278099250,22cyclictest0-21swapper/421:24:424
1002769992525,0cyclictest0-21swapper/022:48:090
100276999250,23cyclictest0-21swapper/023:38:590
100276999250,22cyclictest0-21swapper/019:43:270
100278899240,22cyclictest0-21swapper/719:35:247
1002785992422,1cyclictest1650-21snmpd23:18:316
1002785992421,2cyclictest1650-21snmpd21:20:126
100278599240,23cyclictest871-21runrttasks22:21:416
100278299246,17cyclictest0-21swapper/521:16:565
1002780992424,0cyclictest0-21swapper/419:51:544
1002780992421,2cyclictest1650-21snmpd22:49:094
1002780992421,2cyclictest1650-21snmpd21:18:154
100278099240,22cyclictest0-21swapper/421:56:014
1002776992421,2cyclictest1650-21snmpd19:21:383
1002776992421,2cyclictest1650-21snmpd00:14:553
100277699240,22cyclictest0-21swapper/320:01:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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