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2023-01-29 - 16:54

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #7

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 Freescale i.MX6UL @528 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of shadow in rack #5, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50500000 -m -n -a0 -t1 -p99 -i396 -h400 -q
Total number of samples: 50.5 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 rack5slot7s.osadl.org (updated Sun Jan 29, 2023 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4850224122152,57sleep00-21swapper07:09:450
49249917019,107cyclictest13697-21users11:16:260
49249916741,24cyclictest25637-21/usr/sbin/munin12:31:040
49249916518,122cyclictest1978-21memory10:06:440
49249916346,95cyclictest21156-21unixbench_singl12:02:260
49249916116,122cyclictest6822-21users07:16:340
49249916114,122cyclictest3461-21df_inode10:15:440
49249916110,28cyclictest11968-21sort11:06:170
49249916017,23cyclictest4429-21memory10:20:590
49249916016,120cyclictest11931-21diskstats07:50:430
49249915918,115cyclictest18176-21munin-run08:30:030
49249915914,120cyclictest19779-21cut08:37:190
49249915913,28cyclictest10498-21sshd10:58:300
49249915911,121cyclictest2666-21df_inode10:10:510
49249915818,116cyclictest23208-21munin-run09:00:020
49249915815,118cyclictest24024-21apt-get09:06:260
49249915716,26cyclictest13553-21df_inode08:00:400
49249915711,26cyclictest28728-21grep09:31:120
49249915711,118cyclictest6607-21wc10:35:340
4924991569,104cyclictest8647-21/usr/sbin/munin10:46:120
49249915633,23cyclictest32482-21expr09:55:420
49249915618,25cyclictest22926-21apt-get12:15:250
49249915616,25cyclictest16554-21munin-run08:20:020
49249915615,40cyclictest5777-21cat07:15:060
49249915615,24cyclictest20202-21munin-run12:00:030
49249915614,118cyclictest997-21memory10:00:580
49249915614,100cyclictest11122-21df07:45:360
49249915613,99cyclictest9009-21/usr/sbin/munin10:51:160
49249915613,117cyclictest11203-21timerandwakeup11:01:200
49249915611,104cyclictest18406-21sort11:46:150
49249915514,24cyclictest5786-21/usr/sbin/munin10:31:250
49249915512,100cyclictest13872-21/usr/sbin/munin11:20:480
49249915445,88cyclictest16815-21timerandwakeup11:36:190
49249915418,110cyclictest26764-21apt-get09:20:250
49249915417,22cyclictest29868-21munin-run09:40:030
49249915414,116cyclictest30240-21sort09:41:000
49249915412,32cyclictest19123-21fgrep11:51:140
49249915412,117cyclictest23889-21awk12:20:500
4924991539,26cyclictest12238-21apt-get11:10:150
49249915319,107cyclictest15587-21diskstats11:30:500
49249915317,23cyclictest8774-21irqstats07:30:550
49249915317,113cyclictest15677-21sed08:11:170
49249915313,114cyclictest24871-21grep12:26:100
49249915311,119cyclictest7661-21memory10:41:020
49249915236,25cyclictest26381-21mailstats09:16:120
49249915216,110cyclictest27739-21irqstats09:26:010
49249915215,111cyclictest26159-21apt-get12:35:260
49249915211,37cyclictest19045-21cut08:35:080
49249915211,119cyclictest31583-21apt-get09:50:170
49249915118,26cyclictest21446-21diskstats12:05:550
49249915114,110cyclictest4990-21apt-get10:25:200
49249915113,113cyclictest17708-21sed11:41:190
49249915028,22cyclictest0-21swapper08:46:150
49249915018,26cyclictest12726-21df_inode07:55:440
49249915017,106cyclictest7793-21apt-get07:25:260
49249915015,28cyclictest21806-21df08:50:400
49249915014,110cyclictest22404-21/usr/sbin/munin12:11:000
49249915010,116cyclictest7414-21zcat07:21:070
49249914931,19cyclictest0-21swapper07:36:180
49249914921,23cyclictest16674-21apt-get08:20:240
49249914918,105cyclictest14352-21df_inode08:05:420
49249914918,104cyclictest30785-21apt-get09:45:260
49249914913,37cyclictest10945-21cat07:45:050
49249914819,23cyclictest25138-21apt-get09:10:320
49249914818,25cyclictest14782-21df_inode11:25:470
49249914717,104cyclictest23328-21apt-get09:00:190
49249914618,27cyclictest20218-21/usr/sbin/munin08:40:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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