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2023-03-21 - 00:00

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 Mon Mar 20, 2023 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18769499450449,1cyclictest0-21swapper/420:24:554
18769199450447,2cyclictest250977-21turbostat21:00:003
187704994480,447cyclictest216772-21munin-run20:00:007
187704994480,1cyclictest363170-21munin-run23:00:017
18770099446445,1cyclictest0-21swapper/620:24:556
18770499445445,0cyclictest190360-21turbostat19:19:557
18770499445443,1cyclictest0-21swapper/719:35:007
18768399445444,1cyclictest248110-21turbostat20:59:550
18770499444443,1cyclictest329379-21turbostat22:29:557
18770499443443,0cyclictest253822-21turbostat21:09:557
18769199443442,1cyclictest396958-21turbostat23:35:003
18769199441439,2cyclictest0-21swapper/321:34:553
18769199441439,1cyclictest208246-21turbostat19:45:003
18770499440438,2cyclictest271253-21awk21:24:597
18769199439439,0cyclictest0-21swapper/320:44:553
18769199439437,2cyclictest219665-21turbostat20:05:003
18769199438437,1cyclictest0-21swapper/322:14:563
18769199438437,1cyclictest0-21swapper/321:29:543
18768599438434,3cyclictest233900-21basename20:30:001
18768399438437,1cyclictest0-21swapper/020:24:550
18770499437435,2cyclictest219665-21turbostat20:09:557
18770499437435,2cyclictest219665-21turbostat20:09:557
18769199435435,0cyclictest0-21swapper/323:39:553
18769199434431,2cyclictest222488-21turbostat20:10:003
18769199434431,2cyclictest222488-21turbostat20:10:003
18769199433432,1cyclictest213943-21turbostat19:55:003
18769899432429,3cyclictest0-21swapper/520:30:005
18769199432430,1cyclictest324510-21turbostat22:20:003
18770499431428,2cyclictest0-21swapper/721:05:007
18770499430429,0cyclictest0-21swapper/723:25:007
18769199430429,1cyclictest0-21swapper/323:09:553
18770499429425,4cyclictest295468-21turbostat21:54:557
18769199429429,0cyclictest0-21swapper/321:24:543
18769199429428,1cyclictest0-21swapper/320:14:563
18769199429428,1cyclictest0-21swapper/320:14:553
18769199429427,1cyclictest211109-21turbostat19:50:003
18769199429426,3cyclictest416301-21turbostat23:55:003
18769199428427,1cyclictest190360-21turbostat19:15:003
18769199428427,1cyclictest0-21swapper/321:14:553
18769199426423,2cyclictest334183-21turbostat22:30:003
18770499425422,3cyclictest152048-21kworker/u16:322:40:007
18769199425423,2cyclictest459892-21turbostat00:40:003
18769199424424,0cyclictest0-21swapper/320:34:553
18769199423422,1cyclictest426026-21turbostat00:05:003
18769199423419,3cyclictest290629-21turbostat21:45:013
18770499422420,2cyclictest450204-21turbostat00:34:557
18769199422421,1cyclictest0-21swapper/319:24:553
18770499421419,1cyclictest0-21swapper/723:20:007
18770499419418,0cyclictest0-21swapper/700:10:017
18769199419418,1cyclictest0-21swapper/320:24:553
18770499418418,0cyclictest0-21swapper/722:50:007
18770499417416,1cyclictest0-21swapper/722:35:007
18770499417414,2cyclictest0-21swapper/719:40:007
18770499415415,0cyclictest324510-21turbostat22:24:557
18770499415412,3cyclictest392155-21turbostat23:34:557
18770499414414,0cyclictest261526-21turbostat21:19:547
18769199414413,1cyclictest199729-21turbostat19:30:003
18769199414412,1cyclictest348704-21turbostat22:45:003
18769199413411,1cyclictest245280-21turbostat20:50:003
18770499411410,1cyclictest401805-21turbostat23:44:557
18769199411411,0cyclictest0-21swapper/320:39:563
18770499410408,2cyclictest285818-21turbostat21:44:557
18769199410410,0cyclictest266421-21turbostat21:19:593
18770499409407,2cyclictest310032-21turbostat22:09:557
18768599408404,3cyclictest0-21swapper/122:55:001
18770499406405,1cyclictest196852-21turbostat19:29:557
18769899403399,4cyclictest358327-21awk22:55:015
18769199403401,1cyclictest310032-21turbostat22:05:003
18770499402402,0cyclictest445396-21turbostat00:29:557
18769199402401,1cyclictest0-21swapper/320:54:553
18770499401401,0cyclictest205426-21turbostat19:44:557
18770499400398,2cyclictest300325-21turbostat21:59:557
18770499399399,0cyclictest430841-21turbostat00:14:557
18769499398395,3cyclictest314850-21awk22:10:004
18769199397396,1cyclictest0-21swapper/322:34:553
18769899395394,1cyclictest0-21swapper/520:00:005
18770499394394,0cyclictest440520-21turbostat00:24:557
18770499394392,2cyclictest0-21swapper/721:30:007
18770499394391,3cyclictest0-21swapper/723:05:007
18770499393387,2cyclictest406625-21turbostat23:49:557
18769199392389,0cyclictest0-21swapper/321:49:553
18770099391390,1cyclictest0-21swapper/622:10:006
18768399391388,2cyclictest280954-21awk21:35:000
18769199390390,0cyclictest406625-21turbostat23:45:003
18769499387387,0cyclictest0-21swapper/419:59:554
18769199387387,0cyclictest0-21swapper/300:09:553
18769199387385,1cyclictest305135-21turbostat22:00:003
18768399387384,3cyclictest0-21swapper/022:10:000
18769499386384,2cyclictest0-21swapper/420:30:004
18770099384381,2cyclictest233891-21munin-run20:30:006
18770499382381,0cyclictest0-21swapper/720:45:007
18768599382381,1cyclictest0-21swapper/123:25:001
18769199381381,0cyclictest0-21swapper/322:49:553
18769199380379,0cyclictest450204-21turbostat00:30:013
18770499379377,2cyclictest0-21swapper/722:02:597
18770499379376,2cyclictest0-21swapper/721:00:007
18770499378378,0cyclictest0-21swapper/723:13:597
18770499378378,0cyclictest0-21swapper/722:44:597
18770499378377,1cyclictest0-21swapper/723:07:597
18769899378376,1cyclictest387313-21munin-run23:25:005
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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