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2023-01-31 - 11:40

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #4

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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ARM Broadcom BCM2711 @1500 MHz, Linux 5.10.52-rt47-v7l (Profile)

Latency plot of shadow in rack #7, slot #4
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 -n -a0-2 -p99 -i200 -h400 -t3 -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 rack7slot4s.osadl.org (updated Tue Jan 31, 2023 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1084266516,27EthcTask0-21swapper/33
10842665010,30EthcTask0-21swapper/33
1084266497,28EthcTask0-21swapper/33
10842664810,25EthcTask0-21swapper/33
1084266475,30EthcTask0-21swapper/33
1084094464,28Schedule1065-21Anybus0
1084266452,29EthcTask0-21swapper/33
1084266445,22EthcTask0-21swapper/33
1084266445,22EthcTask0-21swapper/33
1084266439,23EthcTask0-21swapper/33
1084266437,23EthcTask0-21swapper/33
1084266427,21EthcTask0-21swapper/33
1084266424,22EthcTask0-21swapper/33
1084266424,22EthcTask0-21swapper/33
1084266417,25EthcTask0-21swapper/33
1084266416,19EthcTask0-21swapper/33
1084266415,26EthcTask0-21swapper/33
1084266407,23EthcTask0-21swapper/33
1084266407,20EthcTask0-21swapper/33
1084266406,23EthcTask0-21swapper/33
1084266404,24EthcTask0-21swapper/33
1084266402,22EthcTask0-21swapper/33
1084266393,22EthcTask0-21swapper/33
1084266382,25EthcTask0-21swapper/33
1084266378,20EthcTask0-21swapper/33
1084266374,25EthcTask0-21swapper/33
1084266368,19EthcTask0-21swapper/33
1084266366,14EthcTask0-21swapper/33
1084266364,19EthcTask0-21swapper/33
1084266364,16EthcTask0-21swapper/33
1084266361,21EthcTask0-21swapper/33
1078993617,12cyclictest12-21ksoftirqd/00
1084266355,22EthcTask0-21swapper/33
1078993511,9cyclictest10847-21OPCUAServerWork0
1084266347,15EthcTask0-21swapper/33
1084266344,18EthcTask0-21swapper/33
1084266334,18EthcTask0-21swapper/33
1084266331,15EthcTask0-21swapper/33
1084266328,19EthcTask0-21swapper/33
1084266326,22EthcTask0-21swapper/33
1084266326,13EthcTask0-21swapper/33
1084266322,13EthcTask0-21swapper/33
1078993224,5cyclictest12-21ksoftirqd/00
107899321,18cyclictest10835-21SchedProcessorL0
1084266316,16EthcTask0-21swapper/33
1084266312,8EthcTask0-21swapper/33
1084266311,12EthcTask0-21swapper/33
1084094313,13Schedule1065-21Anybus0
1084094311,16Schedule0-21swapper/00
1084266304,16EthcTask0-21swapper/33
1084266294,16EthcTask0-21swapper/33
1084266294,15EthcTask0-21swapper/33
107899297,14cyclictest28788-21ssh0
1078992912,8cyclictest151rcuc/00
1084266281,15EthcTask0-21swapper/33
1078992823,3cyclictest12-21ksoftirqd/00
1078992822,4cyclictest12-21ksoftirqd/00
1078992814,7cyclictest12-21ksoftirqd/00
1078992814,6cyclictest12-21ksoftirqd/00
1084266272,14EthcTask0-21swapper/33
1084094279,9Schedule12-21ksoftirqd/00
107899279,7cyclictest10844-21OPCUAServerSche0
107899277,6cyclictest12-21ksoftirqd/00
107899275,15cyclictest12-21ksoftirqd/00
107899273,19cyclictest0-21swapper/00
1078992722,3cyclictest12-21ksoftirqd/00
1078992716,5cyclictest12-21ksoftirqd/00
1078992714,5cyclictest0-21swapper/00
1078992710,11cyclictest1084094Schedule0
1084094261,14Schedule1065-21Anybus0
107899269,8cyclictest10854-21CommCycleHook0
1078992615,4cyclictest12-21ksoftirqd/00
1078992614,4cyclictest12-21ksoftirqd/00
1078992613,3cyclictest12-21ksoftirqd/00
1084266255,15EthcTask0-21swapper/33
107899257,9cyclictest1058-21cyclictest0
107899253,14cyclictest12-21ksoftirqd/00
1078992518,5cyclictest12-21ksoftirqd/00
1078992516,6cyclictest12-21ksoftirqd/00
1078992515,6cyclictest12-21ksoftirqd/00
1078992513,6cyclictest12-21ksoftirqd/00
1078992511,7cyclictest0-21swapper/00
1084266249,11EthcTask0-21swapper/33
1084266248,7EthcTask0-21swapper/33
1084266242,12EthcTask0-21swapper/33
1084094241,11Schedule4517-21ssh0
107899249,6cyclictest12-21ksoftirqd/00
107899248,4cyclictest12-21ksoftirqd/00
107899246,13cyclictest0-21swapper/00
107899242,15cyclictest28755-21ssh0
1078992414,4cyclictest12-21ksoftirqd/00
1078992412,4cyclictest12-21ksoftirqd/00
1078992411,7cyclictest12-21ksoftirqd/00
1084266235,12EthcTask0-21swapper/33
1084094230,14Schedule0-21swapper/00
1084094230,14Schedule0-21swapper/00
107899232,15cyclictest1065-21Anybus0
1078992317,4cyclictest12-21ksoftirqd/00
1078992317,4cyclictest12-21ksoftirqd/00
1078992317,4cyclictest12-21ksoftirqd/00
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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