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2022-07-06 - 18:56

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 792 highest latencies:
System rack8slot7s.osadl.org (updated Wed Jul 06, 2022 12:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13964992020,0cyclictest0-21swapper/008:19:460
1396499192,7cyclictest3546-21apt-get11:05:120
1396499190,10cyclictest21893-21apt-get07:30:130
1396599180,0cyclictest0-21swapper/107:17:581
1396499183,6cyclictest29142-21apt-get12:15:130
1396599171,15cyclictest0-21swapper/111:05:161
1396499172,10cyclictest31232-21apt-get07:55:110
1396499163,11cyclictest6684-21apt-get09:45:110
1396499162,7cyclictest12168-21apt-get10:00:140
1396599151,6cyclictest0-21swapper/112:25:121
1396499157,7cyclictest26792-21apt-get10:40:120
1396499154,6cyclictest8515-21apt-get09:50:120
1396499153,6cyclictest2505-21apt-get08:05:120
1396499152,7cyclictest17135-21apt-get08:45:110
1396499150,7cyclictest30448-21apt-get10:50:120
1396499150,14cyclictest2826-21meminfo12:30:150
250602140,4sleep10-21swapper/112:02:221
1396599142,5cyclictest0-21swapper/110:35:121
1396599142,4cyclictest0-21swapper/111:45:131
1396599141,11cyclictest0-21swapper/108:25:121
1396599140,5cyclictest0-21swapper/112:15:131
1396599140,5cyclictest0-21swapper/107:35:121
1396599140,4cyclictest0-21swapper/110:15:111
1396499147,6cyclictest21831-21apt-get11:55:120
1396499144,5cyclictest1162-21apt-get09:30:120
1396499143,7cyclictest13473-21apt-get08:35:120
1396499141,7cyclictest32275-21apt-get10:55:110
1396499140,5cyclictest16349-21apt-get11:40:110
1396499140,13cyclictest18818-21meminfo07:20:160
1396599133,4cyclictest0-21swapper/110:50:111
1396599133,3cyclictest0-21swapper/109:15:121
1396599133,2cyclictest0-21swapper/108:45:111
1396599131,7cyclictest0-21swapper/109:25:121
1396599131,7cyclictest0-21swapper/108:30:121
13965991312,0cyclictest0-21swapper/110:05:141
1396499136,6cyclictest31759-21apt-get09:25:120
1396499135,5cyclictest31218-21chrt09:21:060
1396499135,3cyclictest14521-21apt-get11:35:110
1396499134,4cyclictest18176-21apt-get11:45:110
1396499133,5cyclictest29409-21apt-get07:50:130
1396499132,6cyclictest12687-21apt-get11:30:110
1396499131,6cyclictest11646-21apt-get08:30:120
1396499130,7cyclictest30971-21apt-get12:20:110
1396499130,6cyclictest26917-31update-apt-xapi07:40:550
45132120,0sleep00-21swapper/009:38:150
1396599124,3cyclictest26909-21chrt07:40:481
1396599122,6cyclictest0-21swapper/108:50:111
1396599122,4cyclictest0-21swapper/112:20:111
1396599122,4cyclictest0-21swapper/107:50:131
1396599122,3cyclictest0-21swapper/107:30:231
1396599121,7cyclictest0-21swapper/108:00:011
1396599121,6cyclictest0-21swapper/112:35:121
1396599121,6cyclictest0-21swapper/111:50:111
1396599121,4cyclictest0-21swapper/108:00:121
1396599121,3cyclictest0-21swapper/107:10:121
1396599120,6cyclictest0-21swapper/110:45:151
1396599120,4cyclictest0-21swapper/110:25:111
1396599120,3cyclictest0-21swapper/112:30:251
1396499126,5cyclictest617-21apt-get08:00:120
1396499124,6cyclictest28621-21apt-get10:45:120
1396499124,5cyclictest16466-21ls10:10:170
1396499124,3cyclictest27310-21apt-get12:10:100
1396499123,5cyclictest9037-21apt-get11:20:120
1396499122,7cyclictest13984-21apt-get07:10:120
1396499122,6cyclictest17403-21ls07:15:380
1396499122,5cyclictest10347-21apt-get09:55:170
1396499121,7cyclictest7993-21apt-get08:20:110
1396499121,7cyclictest5376-21apt-get11:10:100
1396499121,4cyclictest23658-21apt-get12:00:120
1396499120,7cyclictest10860-21apt-get11:25:110
1396499120,5cyclictest26276-21apt-get09:10:130
1396499120,11cyclictest19548-21meminfo08:50:150
1396499120,10cyclictest18241-21meminfo10:15:150
207412110,1sleep00-21swapper/010:20:460
1396599114,0cyclictest0-21swapper/109:50:011
1396599112,4cyclictest0-21swapper/108:20:111
1396599111,4cyclictest0-21swapper/108:45:001
1396599111,1cyclictest0-21swapper/109:00:111
1396599110,6cyclictest0-21swapper/112:10:111
1396599110,6cyclictest0-21swapper/111:40:121
1396599110,6cyclictest0-21swapper/107:25:111
1396599110,4cyclictest0-21swapper/112:05:111
1396499113,7cyclictest23139-21apt-get10:30:130
1396499113,4cyclictest15306-21apt-get08:40:110
1396499112,5cyclictest24967-21apt-get10:35:120
1396499112,5cyclictest22615-21apt-get09:00:110
1396499112,4cyclictest9819-21apt-get08:25:120
1396499111,6cyclictest1707-21apt-get11:00:110
1396499110,8cyclictest20003-21apt-get11:50:110
1396499110,7cyclictest26110-21diskmemload12:29:560
1396499110,10cyclictest20645-21meminfo07:25:150
129672112,3sleep013044-21/usr/sbin/munin07:05:210
85302100,0sleep026110-21diskmemload11:16:320
1396599104,2cyclictest0-21swapper/109:10:131
1396599103,4cyclictest0-21swapper/109:55:171
1396599103,3cyclictest0-21swapper/111:00:111
1396599102,3cyclictest0-21swapper/108:05:111
1396599101,8cyclictest0-21swapper/111:15:121
1396599101,5cyclictest0-21swapper/110:31:391
1396599101,3cyclictest0-21swapper/109:20:231
1396599101,2cyclictest0-21swapper/107:45:201
1396599101,1cyclictest0-21swapper/111:33:551
1396599100,5cyclictest0-21swapper/109:05:111
1396599100,5cyclictest0-21swapper/108:10:131
1396599100,4cyclictest0-21swapper/110:55:051
1396599100,4cyclictest0-21swapper/108:15:101
1396599100,3cyclictest0-21swapper/111:10:111
1396599100,2cyclictest0-21swapper/110:00:141
1396599100,2cyclictest0-21swapper/109:35:131
1396599100,2cyclictest0-21swapper/108:55:131
1396599100,1cyclictest0-21swapper/111:55:121
1396599100,0cyclictest0-21swapper/109:42:291
1396499109,0cyclictest24666-21grep09:05:130
1396499102,4cyclictest4333-21apt-get08:10:130
1396499101,6cyclictest28100-21apt-get09:15:120
1396499101,5cyclictest27577-21apt-get07:45:110
1396499101,4cyclictest23758-21apt-get07:35:110
1396499100,9cyclictest26071-21meminfo12:05:160
1396499100,9cyclictest22020-21kworker/0:110:07:050
121132101,1sleep10-21swapper/107:05:061
21133290,1sleep00-21swapper/010:25:000
139659992,3cyclictest0-21swapper/108:35:111
139659992,2cyclictest0-21swapper/111:35:111
139659992,2cyclictest0-21swapper/111:25:121
139659992,2cyclictest0-21swapper/110:20:111
139659992,1cyclictest0-21swapper/110:40:131
139659991,5cyclictest0-21swapper/111:20:181
139659991,4cyclictest0-21swapper/109:50:131
139659991,2cyclictest0-21swapper/107:20:111
139659990,5cyclictest0-21swapper/109:30:121
139649994,4cyclictest20789-21apt-get08:55:130
139649993,4cyclictest4067-21apt-get12:35:120
139649992,5cyclictest4853-21apt-get09:40:110
139659980,4cyclictest0-21swapper/110:10:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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