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2023-02-04 - 04:26

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 
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x86 Intel Core i9-9900K @3600 MHz, Linux 5.10.158-rt77 (Profile)

Latency plot of shadow in rack #0, slot #5
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 rack0slot5s.osadl.org (updated Tue Jan 31, 2023 00:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
466681994280,428cyclictest0-21swapper/1520:45:017
46664299427425,2cyclictest631031-21kworker/u32:422:05:002
46664299427425,2cyclictest631031-21kworker/u32:422:05:002
46664299426424,2cyclictest527540-21kworker/u32:420:18:002
46664299426424,2cyclictest527540-21kworker/u32:420:18:002
46664299426424,2cyclictest462187-21kworker/u32:019:22:092
466627994260,426cyclictest0-21swapper/800:19:5614
466627994260,1cyclictest0-21swapper/820:14:5614
46658699426424,2cyclictest574597-21kworker/u32:421:19:008
46664299425424,1cyclictest570674-21kworker/u32:121:03:002
46664299425424,1cyclictest552525-21kworker/u32:220:44:002
46664299425424,1cyclictest537291-21kworker/u32:220:29:002
46664299425424,1cyclictest465461-21kworker/u32:319:29:002
466642994250,425cyclictest0-21swapper/1021:19:002
46658699425423,2cyclictest636545-21kworker/u32:222:45:598
46658699425423,2cyclictest534841-21kworker/u32:120:41:008
46664299424423,1cyclictest736522-21kworker/u32:400:09:592
46664299424423,1cyclictest589528-21kworker/u32:221:21:002
46664299424423,1cyclictest552525-21kworker/u32:220:47:002
46664299424423,1cyclictest527540-21kworker/u32:420:13:002
46664299424423,1cyclictest522159-21kworker/u32:120:07:002
466642994240,424cyclictest0-21swapper/1022:45:592
46662799424421,3cyclictest0-21swapper/820:44:5614
46662099424423,1cyclictest678860-21turbostat22:55:0113
46658699424423,1cyclictest687560-21kworker/u32:423:15:598
46658699424422,2cyclictest687560-21kworker/u32:423:02:598
46658699424422,2cyclictest648117-21kworker/u32:422:29:008
46657199424422,1cyclictest570622-21turbostat21:04:560
46662099423422,1cyclictest660030-21turbostat22:35:0113
46662099423420,3cyclictest608229-21turbostat21:40:0013
46658699423422,1cyclictest645949-21kworker/u32:322:22:038
46658699423422,1cyclictest605859-21kworker/u32:221:57:078
46658699423422,1cyclictest605859-21kworker/u32:221:57:078
46658699423422,1cyclictest534841-21kworker/u32:120:36:008
46658699423422,1cyclictest527542-21kworker/u32:620:16:008
46658699423422,1cyclictest527542-21kworker/u32:620:16:008
46658699423422,1cyclictest465461-21kworker/u32:319:13:008
46658699423422,1cyclictest0-21swapper/220:29:008
46658699423422,1cyclictest0-21swapper/220:07:008
46658699423422,1cyclictest0-21swapper/219:22:098
46658699423421,2cyclictest769384-21kworker/u32:500:26:598
46658699423421,2cyclictest570674-21kworker/u32:121:10:008
46658699423421,2cyclictest534841-21kworker/u32:120:23:008
46658699423421,2cyclictest534841-21kworker/u32:120:23:008
46658699423421,2cyclictest486065-21kworker/u32:219:58:008
46662799422421,1cyclictest0-21swapper/822:34:5614
46658699422421,1cyclictest725351-21kworker/u32:223:41:598
46658699422421,1cyclictest570674-21kworker/u32:121:31:008
46658699422421,1cyclictest550299-21kworker/u32:020:51:008
46658699422421,1cyclictest486065-21kworker/u32:220:02:008
46658699422421,1cyclictest0-21swapper/220:47:008
46658699422421,1cyclictest0-21swapper/220:13:008
46668199421418,2cyclictest622362-21perf21:55:017
46662099421416,4cyclictest556537-21turbostat20:45:0113
46662799419418,1cyclictest0-21swapper/823:24:5514
46668199414413,1cyclictest0-21swapper/1520:15:017
46668199411410,1cyclictest0-21swapper/1523:25:007
46662099411408,2cyclictest622353-21turbostat21:55:0113
46662799408405,3cyclictest0-21swapper/822:04:5614
46662799408405,3cyclictest0-21swapper/822:04:5614
46662799406404,2cyclictest0-21swapper/819:44:5614
46668199405404,1cyclictest612947-21turbostat21:49:557
46668199405401,4cyclictest0-21swapper/1521:00:017
46662099404403,1cyclictest528299-21turbostat20:15:0113
46657199403402,1cyclictest476617-21turbostat19:24:560
46668199402401,1cyclictest0-21swapper/1500:00:017
46657199401400,1cyclictest664725-21turbostat22:44:560
46657199401398,3cyclictest660030-21turbostat22:39:560
46668199400399,1cyclictest0-21swapper/1522:25:017
46662799400396,3cyclictest0-21swapper/821:44:5514
46662099400399,1cyclictest707121-21turbostat23:25:0013
46657199399398,1cyclictest775669-21turbostat00:39:560
46662099395394,1cyclictest0-21swapper/721:49:5513
46662099395391,3cyclictest570622-21turbostat21:00:0113
46662799394393,1cyclictest0-21swapper/800:24:5614
46662799393390,3cyclictest0-21swapper/822:19:5614
46662799393390,3cyclictest0-21swapper/819:49:5514
46668199392389,3cyclictest0-21swapper/1521:10:017
46662099391390,1cyclictest741429-21turbostat00:00:0113
46662099390389,1cyclictest650612-21turbostat22:25:0113
46668199388387,1cyclictest0-21swapper/1521:15:017
46662799388387,1cyclictest0-21swapper/821:09:5614
46668199387386,1cyclictest0-21swapper/1522:30:017
46665699387384,3cyclictest466240-21turbostat19:14:564
46662799387386,1cyclictest0-21swapper/820:09:5614
46657199387386,1cyclictest603541-21turbostat21:39:550
46668199386382,4cyclictest561234-21turbostat20:54:567
46662799386385,1cyclictest0-21swapper/823:54:5614
46662799384381,3cyclictest0-21swapper/819:54:5514
46657199384383,1cyclictest692996-21turbostat23:14:550
46269023830,4sleep60-21swapper/619:05:1612
46662099382379,3cyclictest580029-21turbostat21:10:0113
46662799381380,1cyclictest0-21swapper/820:39:5614
46660799381379,2cyclictest636545-21kworker/u32:222:11:0011
46668199380376,4cyclictest669422-21turbostat22:49:567
46660799380379,1cyclictest0-21swapper/519:21:5911
46668199379376,3cyclictest0-21swapper/1519:15:017
46660799379378,1cyclictest605859-21kworker/u32:221:37:0011
46660799379378,1cyclictest0-21swapper/523:40:5911
46660799379376,3cyclictest650571-21kworker/u32:622:34:5911
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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