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2022-12-02 - 04:53

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 
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x86 Intel Core i7-4960X @3600 MHz, Linux 5.15.2-rt19 (Profile)

Latency plot of shadow in rack #0, slot #3
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rack0slot3s.osadl.org (updated Fri Dec 02, 2022 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
83400799450445,4cyclictest923059-21turbostat21:30:003
83401999448446,2cyclictest1017223-21turbostat23:09:557
83401999448446,1cyclictest1012290-21munin-run23:00:007
83400799448445,3cyclictest1017223-21turbostat23:05:003
83401999445443,2cyclictest0-21swapper/723:30:007
834007994450,445cyclictest0-21swapper/319:19:563
83400799444443,1cyclictest928007-21turbostat21:34:593
83400799444442,2cyclictest0-21swapper/322:24:553
83400799444440,3cyclictest972707-21turbostat22:20:003
83400799443443,0cyclictest0-21swapper/319:49:553
83401999442441,1cyclictest0-21swapper/722:35:007
83400799442442,0cyclictest913089-21turbostat21:20:003
83400799442441,1cyclictest868895-21turbostat20:09:593
83400799440439,1cyclictest836687-21turbostat19:15:003
83400799440438,2cyclictest1076605-21turbostat00:05:003
83401999439438,1cyclictest857474-21turbostat19:54:547
83401999438438,0cyclictest1071616-21turbostat00:04:557
83401999438436,2cyclictest967743-21turbostat22:19:557
83401999438436,2cyclictest0-21swapper/720:19:597
83400799437437,0cyclictest886035-21turbostat20:39:593
83401999435435,0cyclictest851759-21turbostat19:44:557
83401999434430,3cyclictest0-21swapper/720:24:597
83401999433428,4cyclictest0-21swapper/700:25:007
83400099431429,2cyclictest0-21swapper/121:59:551
83400799430429,0cyclictest0-21swapper/323:24:543
83401999429429,0cyclictest0-21swapper/719:40:007
83400799428427,1cyclictest0-21swapper/321:14:553
83401999427424,3cyclictest0-21swapper/722:45:007
83401799427423,3cyclictest877478-21awk20:25:006
83400799427425,2cyclictest0-21swapper/323:29:553
83401999426422,3cyclictest947881-21turbostat21:59:557
83400799426426,0cyclictest0-21swapper/321:54:553
83401999424424,0cyclictest0-21swapper/721:50:007
83401999423420,3cyclictest1002392-21turbostat22:54:557
83401399423421,2cyclictest1007343-21awk22:55:005
83400799421419,2cyclictest1106226-21turbostat00:35:003
83401999420419,1cyclictest0-21swapper/720:35:007
83400999420418,2cyclictest1081527-21turbostat00:14:554
83400799420420,0cyclictest0-21swapper/322:59:553
83401999417416,0cyclictest868895-21turbostat20:14:557
83401999417415,2cyclictest0-21swapper/723:20:007
83401799416414,2cyclictest0-21swapper/621:59:556
83401999413411,1cyclictest0-21swapper/719:30:017
83401999411411,0cyclictest0-21swapper/721:10:007
83401999410408,1cyclictest0-21swapper/720:00:007
83400999409409,0cyclictest0-21swapper/422:55:004
83400799408406,2cyclictest1066695-21turbostat23:55:003
83401999407405,1cyclictest894602-21turbostat20:59:557
83400799407407,0cyclictest1061754-21turbostat23:50:003
83400799407405,2cyclictest897463-21turbostat21:00:003
83400799406404,2cyclictest0-21swapper/322:44:543
83401999405405,0cyclictest1101286-21turbostat00:34:557
83401999405403,2cyclictest886035-21turbostat20:44:557
83400399404403,1cyclictest1007334-21munin-run22:55:002
83401999403402,1cyclictest0-21swapper/721:54:597
83401399402399,2cyclictest982618-21awk22:30:005
83399799402401,1cyclictest0-21swapper/000:14:550
83400799398397,1cyclictest0-21swapper/323:34:553
83401999396395,1cyclictest997441-21turbostat22:49:557
83401799396394,1cyclictest947887-21munin-run21:55:006
83401999395393,1cyclictest0-21swapper/720:54:597
83401999394394,0cyclictest932978-21turbostat21:44:557
83400799394394,0cyclictest0-21swapper/319:39:543
83401999393393,0cyclictest952823-21turbostat22:04:557
83400799393391,2cyclictest0-21swapper/323:09:553
83400799393390,2cyclictest1081527-21turbostat00:10:003
83399799393392,1cyclictest0-21swapper/022:55:000
83401799391390,0cyclictest960754-21ssh22:05:596
83401799390390,0cyclictest0-21swapper/623:25:596
83401799390390,0cyclictest0-21swapper/600:33:596
83401799390390,0cyclictest0-21swapper/600:13:596
83401999389389,0cyclictest1076605-21turbostat00:09:557
83401999389387,2cyclictest0-21swapper/723:40:007
83401999389387,2cyclictest0-21swapper/723:40:007
83401999388384,1cyclictest0-21swapper/719:35:007
83400999388386,1cyclictest982611-21munin-run22:30:004
83401999387387,0cyclictest0-21swapper/722:40:007
83400799386386,0cyclictest987555-21turbostat22:35:003
83400799384381,3cyclictest874608-21turbostat20:20:003
83400099384382,1cyclictest1071624-21munin-run00:00:001
83401999383383,0cyclictest0-21swapper/721:40:007
83400799383383,0cyclictest0-21swapper/319:54:553
834000993830,1cyclictest0-21swapper/123:25:001
83401999382381,1cyclictest0-21swapper/700:30:007
83401999382380,2cyclictest962776-21turbostat22:14:557
83400399381380,1cyclictest0-21swapper/222:30:002
83400799380380,0cyclictest0-21swapper/319:44:553
83400799379376,3cyclictest877465-21turbostat20:25:003
83401999377374,3cyclictest0-21swapper/723:25:007
83401999377374,1cyclictest1071601-40updatedb00:00:007
83400799377373,3cyclictest1096355-21turbostat00:25:003
83401799376375,1cyclictest932964-21ssh21:40:006
83401999375374,1cyclictest863172-21turbostat20:04:557
83401999373373,0cyclictest877465-21turbostat20:29:557
83399799372370,1cyclictest0-21swapper/022:30:000
83400799371368,3cyclictest0-21swapper/321:59:553
83400799370369,1cyclictest942913-21turbostat21:50:003
83401799369367,1cyclictest0-21swapper/600:00:006
83401799369366,2cyclictest1037025-21munin-run23:25:006
83401399368365,2cyclictest913102-21basename21:20:005
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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