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2022-07-06 - 23:40

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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-M620 @2667 MHz, Linux 4.19.106-rt45+ (Profile)

Latency plot of shadow in rack #3, slot #6
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
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack3slot6s.osadl.org (updated Wed Jul 06, 2022 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10367211695,16sleep20-21swapper/207:06:512
9752210885,17sleep00-21swapper/007:05:180
10560210696,6sleep30-21swapper/307:09:213
10356210385,12sleep10-21swapper/107:06:431
298922270,1sleep00-21swapper/008:00:130
87002240,0sleep30-21swapper/311:25:123
198262240,1sleep00-21swapper/011:55:140
157352220,0sleep30-21swapper/310:15:213
1064099220,2cyclictest0-21swapper/211:15:122
1063899220,3cyclictest20147-21munin-node0
1063899220,3cyclictest19251-21uname10:25:150
1063899220,3cyclictest0-21swapper/012:40:000
1063899220,3cyclictest0-21swapper/007:45:170
1063899220,20cyclictest0-21swapper/011:35:210
10640992118,2cyclictest29213-21kworker/u8:209:03:032
1064099211,18cyclictest0-21swapper/209:15:122
1063899210,3cyclictest682-21ps09:35:170
1063899210,2cyclictest0-21swapper/011:00:130
1063899209,9cyclictest12025-21munin-node0
1063899205,12cyclictest3563-21Xorg12:32:590
1063899201,16cyclictest0-21swapper/011:09:190
1063899200,3cyclictest28680-21apt-get09:25:130
1063899200,2cyclictest11887-21latency_hist08:40:010
1063899200,2cyclictest0-21swapper/012:15:130
1063899200,2cyclictest0-21swapper/010:30:130
1063899200,2cyclictest0-21swapper/009:00:170
1063899200,2cyclictest0-21swapper/008:50:160
1063899200,2cyclictest0-21swapper/008:35:010
1063899200,2cyclictest0-21swapper/008:25:160
1063899200,2cyclictest0-21swapper/007:10:120
10640991917,1cyclictest0-21swapper/209:40:102
10640991916,2cyclictest29975-21kworker/u8:110:01:042
10640991916,2cyclictest21736-21kworker/u8:210:40:042
10640991916,2cyclictest21736-21kworker/u8:210:35:042
1064099190,17cyclictest0-21swapper/210:49:552
1063899190,2cyclictest760-21apt-get08:10:130
1063899190,2cyclictest23118-21apt-get09:10:130
1063899190,2cyclictest0-21swapper/012:20:290
1063899190,2cyclictest0-21swapper/012:15:010
1063899190,2cyclictest0-21swapper/012:15:000
1063899190,2cyclictest0-21swapper/012:05:010
1063899190,2cyclictest0-21swapper/011:50:160
1063899190,2cyclictest0-21swapper/011:46:330
1063899190,2cyclictest0-21swapper/011:40:170
1063899190,2cyclictest0-21swapper/011:30:130
1063899190,2cyclictest0-21swapper/011:25:160
1063899190,2cyclictest0-21swapper/011:20:330
1063899190,2cyclictest0-21swapper/011:15:130
1063899190,2cyclictest0-21swapper/011:10:240
1063899190,2cyclictest0-21swapper/010:55:130
1063899190,2cyclictest0-21swapper/010:45:120
1063899190,2cyclictest0-21swapper/010:40:250
1063899190,2cyclictest0-21swapper/010:20:120
1063899190,2cyclictest0-21swapper/010:09:330
1063899190,2cyclictest0-21swapper/009:50:170
1063899190,2cyclictest0-21swapper/009:40:240
1063899190,2cyclictest0-21swapper/009:20:490
1063899190,2cyclictest0-21swapper/009:15:120
1063899190,2cyclictest0-21swapper/008:05:130
1063899190,2cyclictest0-21swapper/007:50:170
1063899190,2cyclictest0-21swapper/007:40:130
1063899190,2cyclictest0-21swapper/007:25:170
1063899190,2cyclictest0-21swapper/007:16:210
10640991815,2cyclictest9706-21kworker/u8:108:51:042
10640991815,2cyclictest6783-21kworker/u8:007:28:042
10640991815,2cyclictest6783-21kworker/u8:007:18:042
10640991815,2cyclictest6783-21kworker/u8:007:11:042
10640991815,2cyclictest29213-21kworker/u8:209:27:032
10640991815,2cyclictest29213-21kworker/u8:208:56:042
10640991815,2cyclictest26455-21kworker/u8:212:24:042
10640991815,2cyclictest21736-21kworker/u8:211:05:042
10640991815,2cyclictest17870-21kworker/u8:107:36:032
10640991815,2cyclictest13538-21kworker/u8:111:41:042
10640991815,2cyclictest10812-21kworker/u8:010:31:032
10640991815,2cyclictest10003-21kworker/u8:012:16:032
1063899180,2cyclictest0-21swapper/012:25:130
1063899180,2cyclictest0-21swapper/012:00:160
1063899180,2cyclictest0-21swapper/010:50:330
1063899180,2cyclictest0-21swapper/010:35:130
1063899180,2cyclictest0-21swapper/010:15:130
1063899180,2cyclictest0-21swapper/010:10:130
1063899180,2cyclictest0-21swapper/010:00:170
1063899180,2cyclictest0-21swapper/009:55:040
1063899180,2cyclictest0-21swapper/009:45:130
1063899180,2cyclictest0-21swapper/009:30:160
1063899180,2cyclictest0-21swapper/009:05:450
1063899180,2cyclictest0-21swapper/008:45:170
1063899180,2cyclictest0-21swapper/008:23:290
1063899180,2cyclictest0-21swapper/008:19:370
1063899180,1cyclictest0-21swapper/008:55:130
137392170,1sleep30-21swapper/310:10:173
10640991714,2cyclictest9706-21kworker/u8:108:37:032
10640991714,2cyclictest6783-21kworker/u8:007:20:032
10640991714,2cyclictest4496-21kworker/u8:111:25:042
10640991714,2cyclictest4496-21kworker/u8:111:24:032
10640991714,2cyclictest29213-21kworker/u8:209:33:042
10640991714,2cyclictest29213-21kworker/u8:209:14:032
10640991714,2cyclictest26455-21kworker/u8:212:25:042
10640991714,2cyclictest21736-21kworker/u8:211:11:042
10640991714,2cyclictest21736-21kworker/u8:210:59:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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