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2022-07-06 - 05:24

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, 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 Celeron G3900 @2800 MHz, Linux 5.4.59-rt36 (Profile)

Latency plot of shadow in rack #c, 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, Linux 4.9.20-rt16, x86_64 highest latencies:
System rackcslot5s.osadl.org (updated Wed Jul 06, 2022 00:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
434328883,3sleep10-21swapper/119:05:131
594126838,26sleep00-21swapper/019:08:450
222742340,1sleep022272-21tail23:55:140
624299230,22cyclictest4662-21meminfo20:25:161
624299230,22cyclictest10572-21meminfo20:40:151
624299220,21cyclictest18610-21meminfo23:45:151
624199221,9cyclictest9900-21apt-get20:40:110
624199216,15cyclictest0-21swapper/020:14:440
624199211,11cyclictest6121-21apt-get23:15:120
624199200,19cyclictest11639-21meminfo22:05:170
624299190,18cyclictest27380-21meminfo22:45:151
624299190,11cyclictest25646-21apt-get21:20:111
624199190,18cyclictest27214-21meminfo20:00:150
624299185,5cyclictest14891-21apt-get22:15:121
624299182,15cyclictest0-21swapper/123:40:161
624299181,8cyclictest16876-21apt-get22:20:121
624299180,18cyclictest31034-21kworker/1:221:56:121
624299180,17cyclictest8649-21meminfo19:15:011
624299180,17cyclictest28282-21meminfo21:25:161
624299180,17cyclictest22383-21meminfo21:10:251
6241991818,0cyclictest0-21swapper/022:16:460
624299172,10cyclictest3086-21apt-get21:45:111
624299170,9cyclictest18672-21apt-get19:40:111
624299170,8cyclictest10966-21apt-get22:05:121
624299170,16cyclictest6795-21meminfo23:15:161
624199171,8cyclictest0-21swapper/023:20:110
624199171,6cyclictest1087-21apt-get21:40:110
624199170,2cyclictest30636-21/usr/sbin/munin22:55:180
624199170,16cyclictest30246-21meminfo21:30:170
624299167,8cyclictest2026-21apt-get20:20:121
624299166,9cyclictest30473-21apt-get20:10:121
624299163,7cyclictest7921-21apt-get20:35:131
6242991616,0cyclictest0-21swapper/100:19:151
624299160,8cyclictest32622-21apt-get23:00:111
624299160,15cyclictest6629-21meminfo20:30:151
624299160,15cyclictest29347-21meminfo22:50:161
624299160,15cyclictest16462-21meminfo20:55:161
624299160,0cyclictest0-21swapper/123:13:071
624199164,8cyclictest18672-21munin-run22:25:000
624199164,11cyclictest0-21swapper/023:50:220
624199161,14cyclictest0-21swapper/021:49:200
624199161,14cyclictest0-21swapper/021:08:350
624199160,16cyclictest15402-21meminfo19:30:160
624199160,15cyclictest29183-21meminfo20:05:160
624299154,9cyclictest12928-21apt-get22:10:121
624299154,7cyclictest13995-21apt-get23:35:111
624299152,7cyclictest12768-21apt-get19:25:121
624299152,7cyclictest0-21swapper/119:45:201
624299151,10cyclictest2470-21users21:40:211
624299150,15cyclictest6933-21meminfo19:10:161
624299150,15cyclictest28448-21meminfo00:10:161
624299150,14cyclictest8780-21meminfo23:20:151
624299150,14cyclictest20581-21meminfo23:50:211
624199157,2cyclictest5303-21unixbench_singl20:25:210
624199154,2cyclictest570-21/usr/sbin/munin20:15:160
624199152,5cyclictest0-21swapper/023:05:120
624199152,10cyclictest0-21swapper/020:55:130
624199150,14cyclictest26319-21meminfo21:20:160
624199150,14cyclictest11476-21meminfo19:20:160
136152150,0sleep10-21swapper/120:49:361
624299147,4cyclictest376-21ls00:20:211
624299144,4cyclictest23661-21apt-get21:15:121
624299144,3cyclictest20815-21apt-get22:30:211
624299142,8cyclictest1965-21meminfo00:25:161
624299142,6cyclictest26539-21/usr/sbin/munin20:00:181
624299141,7cyclictest24562-21apt-get19:55:111
6242991412,1cyclictest5893-21awk21:50:201
6242991412,1cyclictest29574-21apt-get21:30:131
624299140,8cyclictest24746-21apt-get22:40:111
624299140,8cyclictest23663-21munin-run00:00:001
624299140,8cyclictest18838-21apt-get22:25:111
624299140,14cyclictest29182-21meminfo20:05:161
624299140,13cyclictest5903-21meminfo00:35:161
624299140,13cyclictest3931-21meminfo00:30:171
624299140,13cyclictest31311-21meminfo22:55:151
624299140,13cyclictest18442-21meminfo21:00:151
624199142,5cyclictest0-21swapper/020:35:120
624199141,8cyclictest24247-21/usr/sbin/munin21:15:170
624199141,7cyclictest0-21swapper/000:35:110
624199140,7cyclictest0-21swapper/019:40:120
624199140,6cyclictest0-21swapper/020:45:100
624199140,5cyclictest0-21swapper/000:00:130
624199140,13cyclictest23271-21meminfo19:50:150
146862140,0sleep00-21swapper/022:14:400
624299136,6cyclictest10071-21apt-get23:25:121
624299134,5cyclictest9003-21apt-get22:00:121
624299134,4cyclictest3209-21/usr/sbin/munin23:05:201
624299131,8cyclictest10804-21apt-get19:20:111
624199136,2cyclictest1945-21runrttasks23:25:360
624199133,6cyclictest28671-21/usr/sbin/munin22:50:190
624199133,3cyclictest27770-21/usr/sbin/munin00:10:130
624199132,6cyclictest0-21swapper/022:30:320
624199132,5cyclictest5051-21apt-get21:50:110
624199132,5cyclictest0-21swapper/020:20:200
624199132,5cyclictest0-21swapper/019:55:110
624199131,6cyclictest8078-21munin-run19:15:000
624199131,4cyclictest0-21swapper/023:10:220
6241991313,0cyclictest0-21swapper/022:40:190
6241991311,1cyclictest27611-21apt-get21:25:120
624199130,5cyclictest19777-21cat23:50:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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