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2023-01-30 - 12:53

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 highest latencies:
System rack7slot4s.osadl.org (updated Mon Jan 30, 2023 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10842665011,23EthcTask0-21swapper/33
1084266498,27EthcTask0-21swapper/33
1084266496,27EthcTask0-21swapper/33
1084266485,29EthcTask0-21swapper/33
1084266477,30EthcTask0-21swapper/33
1084266477,30EthcTask0-21swapper/33
1084266475,24EthcTask0-21swapper/33
1084266459,22EthcTask0-21swapper/33
2213399442,17cyclictest23778-21ssh0
1084266449,26EthcTask0-21swapper/33
1084266447,23EthcTask0-21swapper/33
1084266444,30EthcTask0-21swapper/33
2214399430,21cyclictest616-21systemd-logind0
2214399430,21cyclictest616-21systemd-logind0
1084266434,25EthcTask0-21swapper/33
1084266426,26EthcTask0-21swapper/33
2214399400,19cyclictest9152-21ssh0
1084266409,21EthcTask0-21swapper/33
1084266407,26EthcTask0-21swapper/33
2213399394,20cyclictest0-21swapper/00
2214399380,20cyclictest27991-21ssh0
1084266385,25EthcTask0-21swapper/33
1084266375,17EthcTask0-21swapper/33
2214399369,10cyclictest12-21ksoftirqd/00
2214399362,19cyclictest21865-21ssh0
2214399361,20cyclictest0-21swapper/00
2214399360,20cyclictest601-21systemd-resolve0
1084266367,23EthcTask0-21swapper/33
1084266366,18EthcTask0-21swapper/33
1084266364,21EthcTask0-21swapper/33
2214399353,14cyclictest12-21ksoftirqd/00
2214399351,17cyclictest10835-21SchedProcessorL0
2214399350,25cyclictest22631-21apt-get0
1084266355,19EthcTask0-21swapper/33
1084266353,20EthcTask0-21swapper/33
2214399349,11cyclictest12-21ksoftirqd/00
2214399342,17cyclictest21329-21ssh0
2214399341,23cyclictest5042-21apt-get0
22143993410,11cyclictest10835-21SchedProcessorL0
22143993410,11cyclictest10835-21SchedProcessorL0
1084266345,18EthcTask0-21swapper/33
1084266343,17EthcTask0-21swapper/33
1084266343,16EthcTask0-21swapper/33
2214399331,23cyclictest2071-21usage_Anybus0
2214399331,20cyclictest3110466ssh0
2214399331,17cyclictest0-21swapper/00
2214399330,22cyclictest935-21apt-get0
2214399330,22cyclictest1409166ssh0
2214399329,9cyclictest10835-21SchedProcessorL0
2214399329,7cyclictest10835-21SchedProcessorL0
2214399322,19cyclictest10835-21SchedProcessorL0
2214399322,17cyclictest1-21systemd0
2214399321,24cyclictest31212-21systemd-udevd0
2214399321,24cyclictest31212-21systemd-udevd0
2214399321,23cyclictest7512-21ssh0
2214399321,23cyclictest19345-21network.sh0
22143993211,8cyclictest17388-21diskmemload0
22143993210,9cyclictest10835-21SchedProcessorL0
22143993210,9cyclictest10835-21SchedProcessorL0
22143993210,9cyclictest10835-21SchedProcessorL0
2214399320,24cyclictest27056-21network.sh0
2214399320,24cyclictest1065-21Anybus0
2214399320,24cyclictest1065-21Anybus0
2214399320,23cyclictest9751-21ssh0
2214399320,22cyclictest7193-21/usr/sbin/munin0
2214399320,20cyclictest22153-21ssh0
2214399320,20cyclictest22153-21ssh0
1084266329,20EthcTask0-21swapper/33
1084266328,15EthcTask0-21swapper/33
1084266322,21EthcTask0-21swapper/33
1084266322,19EthcTask0-21swapper/33
1084266322,14EthcTask0-21swapper/33
2214399311,23cyclictest5165-21spawn0
2214399311,23cyclictest3723-21network.sh0
2214399311,22cyclictest8910-21network.sh0
2214399311,22cyclictest8910-21network.sh0
2214399311,22cyclictest7026-21fschecks_time0
2214399311,21cyclictest23923-21network.sh0
2214399311,21cyclictest13524-21ssh0
2214399311,18cyclictest2176466ssh0
22143993111,8cyclictest0-21swapper/00
2214399310,24cyclictest7438-21cut0
2214399310,24cyclictest3611-21network.sh0
2214399310,24cyclictest32019-21network.sh0
2214399310,24cyclictest25186-21latency_hist0
2214399310,24cyclictest24587-21cat0
2214399310,23cyclictest601-21systemd-resolve0
2214399310,23cyclictest21168-21grep0
2214399310,23cyclictest20465-21systemd-udevd0
2214399310,23cyclictest1879-21grep0
2214399310,23cyclictest11196-21fschecks_time0
22133993115,10cyclictest10835-21SchedProcessorL0
1084266313,18EthcTask0-21swapper/33
2214399308,8cyclictest22475-21ssh0
2214399301,21cyclictest26374-21apt-get0
2214399301,18cyclictest2931066ssh0
22143993010,5cyclictest0-21swapper/00
22143993010,12cyclictest7085-21sh0
2214399300,23cyclictest8642-21network.sh0
2214399300,23cyclictest23938-21kthreadcore0
2214399300,23cyclictest23938-21kthreadcore0
2214399300,23cyclictest20416-21cut0
2214399300,22cyclictest9613-21grep0
2214399300,22cyclictest27084-21network.sh0
1084266304,18EthcTask0-21swapper/33
1084266304,16EthcTask0-21swapper/33
1084266303,16EthcTask0-21swapper/33
1084266284,12EthcTask0-21swapper/33
1084266278,12EthcTask0-21swapper/33
1084266277,11EthcTask0-21swapper/33
1084266277,11EthcTask0-21swapper/33
1084266267,12EthcTask0-21swapper/33
1084266256,11EthcTask0-21swapper/33
1084266255,16EthcTask0-21swapper/33
1084266254,13EthcTask0-21swapper/33
1084266254,13EthcTask0-21swapper/33
1084266248,12EthcTask0-21swapper/33
1084266247,10EthcTask0-21swapper/33
1084266244,16EthcTask0-21swapper/33
1084266243,14EthcTask0-21swapper/33
1084266237,7EthcTask0-21swapper/33
1084266233,6EthcTask0-21swapper/33
1084266233,14EthcTask0-21swapper/33
1084266233,14EthcTask0-21swapper/33
1084266233,14EthcTask0-21swapper/33
1084266233,13EthcTask0-21swapper/33
1084266226,9EthcTask0-21swapper/33
1084266224,15EthcTask0-21swapper/33
1084266223,14EthcTask0-21swapper/33
1084266223,10EthcTask0-21swapper/33
1084266223,10EthcTask0-21swapper/33
1084266219,9EthcTask0-21swapper/33
1084266217,10EthcTask0-21swapper/33
1084266215,11EthcTask0-21swapper/33
1084266215,11EthcTask0-21swapper/33
1084266213,9EthcTask0-21swapper/33
1084266213,11EthcTask0-21swapper/33
1084094211,15Schedule17048-21/usr/sbin/munin0
1084266208,7EthcTask0-21swapper/33
1084266205,9EthcTask0-21swapper/33
1084266203,12EthcTask0-21swapper/33
1084266203,12EthcTask0-21swapper/33
1084266187,7EthcTask0-21swapper/33
1084266182,10EthcTask0-21swapper/33
1084266172,9EthcTask0-21swapper/33
1084266163,9EthcTask0-21swapper/33
1084266162,11EthcTask0-21swapper/33
1084266152,9EthcTask0-21swapper/33
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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