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2022-07-06 - 06:27

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, 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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x86 Intel Pentium G4400 @3300 MHz, Linux 4.19.37-rt19 (Profile)

Latency plot of shadow in rack #8, slot #7
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 rack8slot7s.osadl.org (updated Wed Jul 06, 2022 00:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
96292340,0sleep10-21swapper/100:10:151
305502330,0sleep030554-21missed_timers22:10:180
2828699330,32cyclictest15372-21meminfo20:00:150
2828799210,0cyclictest0-21swapper/123:17:501
2828699210,6cyclictest29414-21apt-get20:40:100
319922200,1sleep10-21swapper/123:43:461
2828699200,19cyclictest11720-21meminfo19:50:150
2828799190,6cyclictest0-21swapper/123:55:121
2828799180,17cyclictest0-21swapper/119:40:181
2828799171,1cyclictest0-21swapper/122:10:211
28286991717,0cyclictest0-21swapper/019:37:580
2828699170,9cyclictest20272-21apt-get20:15:130
2828699170,15cyclictest7841-21diskmemload22:31:040
2828699170,15cyclictest7841-21diskmemload22:31:030
2828799161,4cyclictest0-21swapper/122:52:381
2828699163,7cyclictest7481-21apt-get19:40:120
2828699162,7cyclictest23143-21apt-get23:20:110
2828699160,7cyclictest31241-21apt-get20:45:100
2828699160,3cyclictest7841-21diskmemload21:48:400
2828799151,6cyclictest0-21swapper/123:00:121
2828799150,6cyclictest0-21swapper/121:20:111
2828699151,6cyclictest22622-21apt-get21:50:120
2828699150,8cyclictest32284-21apt-get23:45:110
2828699150,8cyclictest28629-21apt-get23:35:110
2828699150,6cyclictest12699-21apt-get00:20:120
2828699150,5cyclictest14524-21apt-get00:25:100
265972152,3sleep026794-21/usr/sbin/munin19:05:140
203772150,1sleep00-21swapper/021:42:240
121202150,1sleep10-21swapper/100:15:441
2828799146,3cyclictest0-21swapper/123:30:111
2828799143,6cyclictest0-21swapper/120:10:121
2828799143,4cyclictest0-21swapper/119:30:121
2828799141,5cyclictest0-21swapper/119:10:121
28287991414,0cyclictest0-21swapper/121:48:071
2828699146,6cyclictest26796-21apt-get23:30:110
2828699144,6cyclictest30458-21apt-get23:40:120
2828699142,7cyclictest30724-21apt-get19:15:130
2828699140,8cyclictest3037-21apt-get22:25:120
123022140,0sleep07841-21diskmemload00:17:390
2828799135,5cyclictest0-21swapper/120:20:161
2828799134,6cyclictest0-21swapper/122:15:121
2828799133,3cyclictest0-21swapper/121:40:101
2828799130,7cyclictest0-21swapper/100:30:131
2828799130,4cyclictest0-21swapper/123:10:131
2828799130,4cyclictest0-21swapper/120:55:121
2828699139,1cyclictest21157-21perf23:14:590
2828699134,5cyclictest7215-21apt-get00:05:110
2828699134,4cyclictest18181-21apt-get00:35:110
2828699133,4cyclictest27583-21apt-get20:35:120
2828699132,7cyclictest12178-21apt-get22:50:110
2828699132,4cyclictest31763-21apt-get22:15:120
2828699131,5cyclictest9830-21apt-get21:15:130
2828699130,8cyclictest1724-21apt-get23:50:160
189892130,1sleep10-21swapper/123:06:331
95862120,1sleep00-21swapper/021:14:200
2828799124,4cyclictest0-21swapper/120:45:201
2828799123,3cyclictest83180irq/130-ecat0-t23:20:121
2828799122,2cyclictest0-21swapper/122:30:221
2828799122,2cyclictest0-21swapper/122:30:211
2828799121,7cyclictest0-21swapper/121:39:381
2828799121,7cyclictest0-21swapper/119:15:131
2828799121,5cyclictest0-21swapper/123:50:151
2828799121,4cyclictest0-21swapper/122:20:111
2828799121,3cyclictest0-21swapper/119:35:111
2828799121,1cyclictest0-21swapper/120:40:161
2828799120,5cyclictest0-21swapper/122:35:111
2828799120,5cyclictest0-21swapper/120:55:011
2828799120,5cyclictest0-21swapper/100:20:151
2828799120,3cyclictest0-21swapper/122:10:011
2828699126,5cyclictest28105-21apt-get22:05:130
2828699125,3cyclictest6696-21apt-get22:35:110
2828699123,4cyclictest16807-21ls23:00:190
2828699122,7cyclictest4338-21apt-get21:00:100
2828699121,9cyclictest17140-21apt-get21:35:110
2828699121,7cyclictest6175-21apt-get21:05:110
2828699121,7cyclictest18444-21apt-get20:10:120
2828699121,6cyclictest16355-21apt-get00:30:110
2828699121,5cyclictest14004-21apt-get22:55:100
2828699121,3cyclictest23930-21apt-get20:25:110
2828699120,5cyclictest32553-21apt-get19:20:120
2828699120,11cyclictest28893-21meminfo19:10:150
263612120,0sleep00-21swapper/023:27:130
259712120,0sleep10-21swapper/121:58:391
2828799114,3cyclictest0-21swapper/100:35:121
2828799113,2cyclictest0-21swapper/121:54:341
2828799112,6cyclictest0-21swapper/123:45:101
2828799112,4cyclictest0-21swapper/100:00:131
2828799111,6cyclictest0-21swapper/120:35:131
2828799111,5cyclictest0-21swapper/123:35:111
2828799111,2cyclictest0-21swapper/122:45:121
2828799111,1cyclictest0-21swapper/120:25:111
2828799110,5cyclictest0-21swapper/100:25:101
2828799110,4cyclictest0-21swapper/123:25:111
2828799110,4cyclictest0-21swapper/100:05:141
2828799110,3cyclictest0-21swapper/122:55:011
2828799110,3cyclictest0-21swapper/122:00:111
2828699113,6cyclictest22102-21apt-get20:20:110
2828699112,7cyclictest3554-21apt-get23:55:120
2828699112,6cyclictest12960-21apt-get19:55:110
2828699112,5cyclictest21313-21apt-get23:15:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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