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2023-01-31 - 05:22

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 376 highest latencies:
System rackcslot5s.osadl.org (updated Tue Jan 31, 2023 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1349428581,2sleep00-21swapper/019:05:220
1280726557,4sleep10-21swapper/119:05:101
1479499271,20cyclictest4568-21perf20:05:010
1479599260,1cyclictest30193-21taskset23:51:241
1479599251,10cyclictest26435-21apt-get21:00:151
1479599240,23cyclictest25487-21meminfo23:40:271
1479599235,4cyclictest0-21swapper/120:20:201
1479599230,22cyclictest12806-21meminfo00:30:241
1479599230,17cyclictest14782-21meminfo00:35:251
1479499230,22cyclictest32200-21meminfo22:35:190
1479599220,21cyclictest0-21swapper/100:25:211
1479499221,9cyclictest11800-21apt-get21:45:180
1479499221,11cyclictest32700-21apt-get00:00:200
1479499220,11cyclictest0-21swapper/019:45:180
14795992121,0cyclictest0-21swapper/120:31:251
1479599210,20cyclictest7027-21/usr/sbin/munin22:55:261
1479599210,19cyclictest28398-21/usr/sbin/munin21:05:241
1479499211,9cyclictest20852-21apt-get23:30:180
14794992119,1cyclictest626-21ls21:15:220
1479499210,20cyclictest18403-21meminfo22:00:220
1479499210,18cyclictest20811-21switchtime22:05:260
1479599204,7cyclictest23308-21apt-get19:30:161
1479599200,19cyclictest943-21meminfo00:00:261
1479599200,19cyclictest30236-21meminfo22:30:231
1479499200,8cyclictest1089-21apt-get22:40:200
1479499200,19cyclictest13291-21meminfo20:25:200
14795991919,0cyclictest0-21swapper/121:55:091
1479499190,18cyclictest6446-21interrupts21:30:210
1479499190,10cyclictest24652-21basename23:40:000
1479599185,7cyclictest12832-21df20:25:171
1479599181,1cyclictest6363-21expr00:15:191
1479599180,17cyclictest5732-21meminfo22:50:201
1479599180,15cyclictest0-21swapper/120:00:191
1479499181,12cyclictest8199-21apt-get00:20:190
1479499180,1cyclictest13772-21apt-esm-hook21:50:150
1479499180,17cyclictest31050-21meminfo21:10:250
1479499180,11cyclictest0-21swapper/000:30:170
1479499171,8cyclictest4243-21apt-get00:10:190
1479499171,7cyclictest25623-21apt-get22:20:160
1479499171,4cyclictest723-21apt-get19:55:150
1479499170,1cyclictest0-21swapper/020:54:310
1479499170,17cyclictest13628-21meminfo23:10:250
1479499170,16cyclictest5399-21meminfo20:05:200
1479499170,16cyclictest25948-21meminfo19:35:200
1479499170,16cyclictest17235-21meminfo20:35:210
1479499170,11cyclictest0-21swapper/020:15:180
1479599167,7cyclictest9837-21apt-get21:40:211
1479599166,3cyclictest22821-21apt-get23:35:181
1479599163,8cyclictest31872-21memory19:50:201
1479599161,9cyclictest10187-21ls23:00:271
1479599161,4cyclictest0-21swapper/121:10:241
14795991614,1cyclictest25280-21/usr/sbin/munin20:55:241
1479599161,13cyclictest0-21swapper/122:05:261
1479599160,16cyclictest0-21swapper/122:41:561
1479599160,15cyclictest3766-21meminfo22:45:221
1479599160,14cyclictest20045-21meminfo19:20:201
1479499166,4cyclictest16216-21if_err_eth021:55:190
1479499162,12cyclictest21339-21apt-get19:25:160
1479499160,3cyclictest27449-21meminfo23:45:250
1479499160,15cyclictest2944-21meminfo00:05:220
1479499160,15cyclictest28267-21meminfo22:25:230
1479599155,9cyclictest17730-21apt-get22:00:171
1479599155,5cyclictest0-21swapper/119:55:161
1479599153,6cyclictest14923-21apt-get23:15:171
1479599151,3cyclictest17385-21apt-get19:15:151
14795991513,1cyclictest20491-21seq20:45:031
14795991513,1cyclictest20491-21seq20:45:021
1479599150,8cyclictest30709-21apt-get23:55:171
1479599150,14cyclictest24311-21meminfo22:15:231
1479599150,11cyclictest0-21swapper/120:40:321
1479499155,8cyclictest23635-21apt-get22:15:180
1479499155,8cyclictest18878-21apt-get23:25:140
1479499152,9cyclictest10448-21cut00:25:170
1479499152,8cyclictest26600-21sh23:45:000
1479499152,10cyclictest20517-21apt-get20:45:180
1479499152,10cyclictest20517-21apt-get20:45:170
14794991514,1cyclictest0-21swapper/019:15:230
1479499150,8cyclictest31191-21/usr/sbin/munin19:50:180
1479499150,8cyclictest10981-21apt-get23:05:170
1479499150,7cyclictest0-21swapper/023:15:170
1479499150,14cyclictest7372-21meminfo20:10:240
1479499150,12cyclictest0-21swapper/021:05:160
1479499150,10cyclictest20341-21cron20:45:000
90012140,0sleep00-21swapper/023:00:120
1479599146,4cyclictest5877-21apt-get21:30:161
1479599145,6cyclictest7847-21apt-get21:35:171
1479599145,6cyclictest1945-21runrttasks23:31:431
1479599143,8cyclictest8662-21apt-get20:15:181
1479599143,6cyclictest22750-21/usr/sbin/munin22:10:341
1479599142,7cyclictest29230-21apt-get19:45:181
1479599142,5cyclictest0-21swapper/100:20:181
1479599141,12cyclictest28322-21python19:40:291
1479499146,3cyclictest2029-21grep21:20:170
1479499145,5cyclictest7027-21/usr/sbin/munin22:55:200
1479499145,4cyclictest3088-21apt-get22:45:170
1479499143,6cyclictest0-21swapper/022:10:200
1479499143,5cyclictest0-21swapper/023:55:170
1479499142,8cyclictest29057-21munin-run19:44:590
1479499142,8cyclictest25127-21perf19:35:000
1479499141,5cyclictest5057-21apt-get22:50:160
1479499140,9cyclictest0-21swapper/022:30:180
1479499140,13cyclictest10517-21meminfo21:40:300
35762130,0sleep10-21swapper/121:23:211
1479599133,5cyclictest0-21swapper/122:35:141
1479599132,9cyclictest12952-21apt-get23:10:201
1479599132,7cyclictest27594-21apt-get22:25:191
1479599131,8cyclictest27067-21cron19:39:591
1479599131,7cyclictest22483-21apt-get20:50:171
1479599131,1cyclictest21640-21fschecks_time19:25:181
1479599130,6cyclictest16914-21apt-get23:20:151
1479599130,12cyclictest26298-21meminfo22:20:211
1479599130,11cyclictest0-21swapper/121:45:181
1479499138,3cyclictest62050irq/129-eth0-rx00:17:190
1479499135,6cyclictest0-21swapper/023:20:160
1479499135,5cyclictest14817-21apt-get19:10:140
1479499132,8cyclictest16386-21cron20:35:010
1479499131,8cyclictest28739-21apt-get23:50:170
1479499130,9cyclictest0-21swapper/021:35:170
1479499130,12cyclictest24452-21apt-get20:55:170
1479599124,4cyclictest15798-21/usr/sbin/munin19:10:221
1479599123,8cyclictest4470-21diskstats00:10:221
1479599121,7cyclictest1738-21munin-run21:19:591
1479599121,4cyclictest0-21swapper/100:05:161
14795991212,0cyclictest0-21swapper/120:12:151
1479599120,4cyclictest20679-21munin-run23:30:001
1479499124,3cyclictest1945-21runrttasks20:20:070
1479499124,3cyclictest14095-21taskset00:35:160
1479499123,5cyclictest3911-21apt-get21:25:180
1479499121,6cyclictest0-21swapper/021:00:150
1479499120,3cyclictest0-21swapper/019:20:210
1479599113,5cyclictest1945-21runrttasks20:05:061
1479599113,1cyclictest0-21swapper/121:50:141
1479599112,4cyclictest4496-21/usr/sbin/munin21:25:221
1479599112,4cyclictest0-21swapper/123:05:101
1479599110,5cyclictest16975-21gltestperf20:35:191
1479599102,4cyclictest26771-21/usr/sbin/munin23:45:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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