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2025-07-08 - 23:47

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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 rack0slot5s.osadl.org (updated Tue Jul 08, 2025 00:47:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20625782365309,19sleep50-21swapper/519:09:4011
20624532362307,19sleep60-21swapper/619:07:4812
20624982350323,18sleep150-21swapper/1519:08:307
20624122349297,18sleep20-21swapper/219:07:128
20624412348316,24sleep110-21swapper/1119:07:373
20624182348321,18sleep70-21swapper/719:07:1713
20625912344316,18sleep10-21swapper/119:09:521
20624062344317,19sleep130-21swapper/1319:07:075
20624512343316,18sleep40-21swapper/419:07:4610
20624202341315,18sleep90-21swapper/919:07:1915
20624552340312,19sleep80-21swapper/819:07:5014
20625762339311,18sleep30-21swapper/319:09:389
20622922337311,18sleep120-21swapper/1219:05:294
20624812336309,18sleep00-21swapper/019:08:150
20624572336309,18sleep100-21swapper/1019:07:522
20624612325295,20sleep140-21swapper/1419:07:566
2062929998016,50cyclictest81-21ksoftirqd/623:48:3812
206292999423,14cyclictest0-21swapper/622:31:4512
206292999423,14cyclictest0-21swapper/622:31:4512
206292999423,14cyclictest0-21swapper/600:21:3512
206292999422,40cyclictest81-21ksoftirqd/623:26:4012
206292999412,14cyclictest0-21swapper/621:36:5012
2062929993714,12cyclictest0-21swapper/621:03:5312
2062900993630,6cyclictest0-21swapper/019:34:270
206295199329,1cyclictest0-21swapper/1120:00:143
206291699316,17cyclictest0-21swapper/321:30:079
2062960993029,1cyclictest0-21swapper/1319:11:115
2062955993025,4cyclictest1526-21snmpd19:12:144
206294399290,28cyclictest0-21swapper/919:52:2715
206293899291,28cyclictest0-21swapper/820:22:1314
206292999295,14cyclictest0-21swapper/620:19:5712
206292999294,14cyclictest0-21swapper/622:42:4412
206292999290,28cyclictest0-21swapper/622:10:1412
2062900992928,1cyclictest0-21swapper/019:11:110
2062900992927,2cyclictest1526-21snmpd22:10:560
2062955992826,1cyclictest0-21swapper/1200:01:084
206295599280,28cyclictest0-21swapper/1222:56:364
206295599280,27cyclictest0-21swapper/1223:57:504
2062951992825,2cyclictest1526-21snmpd20:20:223
2062946992826,1cyclictest0-21swapper/1020:57:182
2062943992827,1cyclictest1526-21snmpd19:20:1715
2062943992826,2cyclictest1526-21snmpd20:33:5015
2062943992826,2cyclictest1526-21snmpd20:33:5015
2062943992826,1cyclictest1526-21snmpd21:39:3115
206294399280,27cyclictest0-21swapper/920:20:5215
206293899280,27cyclictest0-21swapper/823:45:0814
2062934992827,1cyclictest1526-21snmpd23:33:4313
206292999284,24cyclictest0-21swapper/600:10:3612
206292999284,13cyclictest0-21swapper/623:59:3712
206292999283,14cyclictest0-21swapper/622:20:4612
206292999283,14cyclictest0-21swapper/621:58:4812
206292999283,14cyclictest0-21swapper/621:25:5112
206292999283,14cyclictest0-21swapper/620:41:5512
2062929992826,2cyclictest1526-21snmpd19:33:5412
206292999280,28cyclictest0-21swapper/622:18:2012
2062921992827,1cyclictest1526-21snmpd20:44:4710
206291699280,28cyclictest0-21swapper/319:25:299
206291099281,27cyclictest0-21swapper/200:22:038
2062904992827,1cyclictest1526-21snmpd23:07:211
206290099280,27cyclictest0-21swapper/023:56:320
2062969992725,1cyclictest1526-21snmpd23:13:167
2062969992724,2cyclictest1526-21snmpd22:58:277
206296999270,27cyclictest0-21swapper/1523:08:277
206296999270,27cyclictest0-21swapper/1519:36:397
2062964992726,1cyclictest1526-21snmpd21:32:496
2062964992725,2cyclictest567-21plymouthd19:48:006
206296499270,27cyclictest0-21swapper/1422:32:326
206296499270,27cyclictest0-21swapper/1422:32:326
206296499270,27cyclictest0-21swapper/1420:08:046
206296099270,27cyclictest0-21swapper/1322:45:275
206296099270,27cyclictest0-21swapper/1300:01:265
206296099270,1cyclictest0-21swapper/1321:15:035
2062955992726,1cyclictest1526-21snmpd22:30:174
2062955992726,1cyclictest1526-21snmpd22:30:174
2062955992726,1cyclictest1526-21snmpd19:44:154
206295599270,21cyclictest0-21swapper/1219:28:024
2062951992726,1cyclictest1526-21snmpd23:10:253
206295199270,27cyclictest0-21swapper/1123:27:043
206295199270,27cyclictest0-21swapper/1123:15:133
206295199270,27cyclictest0-21swapper/1122:55:483
206295199270,27cyclictest0-21swapper/1121:24:573
206295199270,27cyclictest0-21swapper/1119:41:003
206295199270,27cyclictest0-21swapper/1119:26:263
206295199270,1cyclictest0-21swapper/1122:52:333
206295199270,1cyclictest0-21swapper/1121:12:393
2062946992726,1cyclictest1526-21snmpd19:42:332
206294699270,27cyclictest0-21swapper/1023:38:472
206294699270,27cyclictest0-21swapper/1021:22:002
206294699270,27cyclictest0-21swapper/1019:52:512
206294699270,1cyclictest0-21swapper/1023:03:542
2062943992725,1cyclictest1526-21snmpd21:09:3915
206294399270,27cyclictest0-21swapper/921:11:0315
2062938992726,1cyclictest1526-21snmpd19:22:3814
206293899270,27cyclictest0-21swapper/822:46:2814
206293899270,1cyclictest0-21swapper/821:55:1014
2062934992725,2cyclictest1526-21snmpd23:36:2213
2062934992725,1cyclictest1526-21snmpd20:43:5613
206293499270,27cyclictest0-21swapper/719:58:5813
206292999273,13cyclictest0-21swapper/619:25:0212
206292999273,10cyclictest0-21swapper/619:47:0012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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