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2023-05-28 - 22:12

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 Sun May 28, 2023 12:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28344210184,2sleep10-21swapper/107:05:221
2889228041,35sleep00-21swapper/007:05:270
253212480,0sleep10-21swapper/108:19:301
132182340,1sleep013215-21seq11:55:200
29554992424,0cyclictest0-21swapper/011:16:590
2955499231,10cyclictest16806-21apt-get09:20:200
2955599220,21cyclictest10204-21df10:25:171
2955499220,21cyclictest6725-21meminfo10:15:250
2955499220,21cyclictest17642-21meminfo12:05:210
2955499210,11cyclictest28774-21apt-get12:35:180
2955599200,2cyclictest15903-21/usr/sbin/munin10:40:201
2955599190,18cyclictest14249-21meminfo07:50:191
2955499190,7cyclictest0-21swapper/007:55:140
2955499190,18cyclictest4758-21meminfo10:10:230
2955599180,17cyclictest2793-21meminfo10:05:241
2955499182,2cyclictest28613-21latency_hist12:35:000
2955499181,8cyclictest1187-21apt-get11:25:190
2955499180,7cyclictest0-21swapper/011:10:180
2955499180,17cyclictest25523-21meminfo12:25:240
2955499180,17cyclictest22463-21meminfo10:55:210
2955499180,17cyclictest1713-21meminfo08:40:230
2955599173,9cyclictest23714-21/usr/sbin/munin09:35:281
29555991717,0cyclictest0-21swapper/108:58:281
2955599170,16cyclictest6726-21meminfo10:15:251
2955599170,16cyclictest31239-21meminfo09:55:191
2955499172,9cyclictest15639-21ntp_states09:15:260
2955499171,5cyclictest8931-21apt-get09:00:220
2955499170,16cyclictest16577-21meminfo10:40:220
2955499170,16cyclictest12295-21meminfo07:45:250
2955599165,5cyclictest0-21swapper/108:35:421
2955599162,4cyclictest111rcu_preempt09:22:371
2955599161,9cyclictest14813-21apt-get09:15:151
29555991614,1cyclictest0-21swapper/109:33:081
29555991610,5cyclictest16995-31update-apt-xapi07:55:491
2955599160,7cyclictest0-21swapper/108:25:161
2955599160,15cyclictest6339-21meminfo07:30:211
2955599160,15cyclictest30248-21meminfo07:10:171
2955599160,15cyclictest20349-21meminfo08:05:311
2955599160,15cyclictest15688-21meminfo12:00:271
2955499163,7cyclictest19654-21/usr/sbin/munin08:05:350
2955499161,7cyclictest18933-21apt-get12:10:170
2955499161,6cyclictest8031-21apt-get10:20:160
2955499161,5cyclictest32554-21apt-get10:00:200
2955499160,8cyclictest31292-21munin-run08:35:000
2955499160,8cyclictest25570-21apt-get08:20:160
2955499160,5cyclictest0-21swapper/010:05:190
2955499160,15cyclictest7813-21meminfo11:40:240
2955499160,13cyclictest0-21swapper/010:50:170
91912150,1sleep10-21swapper/107:37:111
2955599154,8cyclictest11617-21apt-get07:45:181
2955599154,3cyclictest19853-21proc_pri12:10:251
29555991513,1cyclictest26811-21/usr/sbin/munin12:30:291
29555991510,3cyclictest0-21swapper/111:48:581
2955599150,6cyclictest0-21swapper/109:45:161
2955599150,11cyclictest0-21swapper/110:30:191
2955499154,10cyclictest24501-21latency_hist09:40:010
2955499153,7cyclictest0-21swapper/007:35:140
2955499152,8cyclictest18764-21apt-get09:25:180
2955499151,13cyclictest22879-21apt-get12:20:150
2955499150,8cyclictest27552-21basename11:09:590
2955499150,7cyclictest24678-21apt-get09:40:180
2955499150,5cyclictest21623-21apt-get08:10:180
2955499150,14cyclictest5829-21meminfo11:35:240
2955499150,14cyclictest29272-21meminfo09:50:210
2955599146,4cyclictest9954-21sendmail_mailtr09:00:311
2955599145,8cyclictest20897-21apt-get12:15:181
2955599145,2cyclictest3696-21apt-get07:25:161
2955599144,6cyclictest0-21swapper/110:00:201
2955599143,4cyclictest0-21swapper/110:55:061
2955599142,7cyclictest0-21swapper/109:40:191
2955599142,6cyclictest0-21swapper/111:25:191
29555991414,0cyclictest0-21swapper/109:25:291
29555991413,1cyclictest21-21ksoftirqd/110:24:551
2955499147,6cyclictest30565-21apt-get09:55:160
2955499145,5cyclictest32141-21apt-get07:15:170
2955499145,5cyclictest23584-21apt-get08:15:180
2955499144,8cyclictest17875-21apt-get10:45:230
2955499143,9cyclictest0-21swapper/011:00:200
2955499143,5cyclictest0-21swapper/012:15:380
2955499141,9cyclictest9-21ksoftirqd/008:45:190
2955499141,8cyclictest27528-21/usr/sbin/munin08:25:170
2955499140,7cyclictest0-21swapper/009:10:160
2955499140,3cyclictest31472-21apt-get08:35:220
2955499140,13cyclictest4372-21meminfo07:25:210
2955499140,13cyclictest11558-21meminfo09:05:210
2955499140,10cyclictest11303-21/usr/sbin/munin11:50:210
2955599134,8cyclictest16968-21apt-get12:05:161
2955599134,7cyclictest24966-21cstates12:25:171
2955599134,4cyclictest23779-21apt-get11:00:201
2955599134,4cyclictest18079-21/usr/sbin/munin08:00:181
2955599133,6cyclictest0-21swapper/108:10:181
2955599133,5cyclictest19825-21/usr/sbin/munin10:50:281
2955599132,5cyclictest0-21swapper/108:50:331
2955599132,3cyclictest31291-21sh08:35:001
2955599131,7cyclictest25743-21apt-get11:05:191
2955599131,5cyclictest7137-21apt-get11:40:171
2955599131,5cyclictest11062-21apt-get11:50:181
2955599131,5cyclictest0-21swapper/109:14:181
2955599131,2cyclictest5154-21apt-get11:35:161
29555991311,1cyclictest21-21ksoftirqd/111:20:151
2955499137,1cyclictest32442-21ntp_kernel_err11:20:230
2955499134,7cyclictest9994-21apt-get10:25:160
2955499133,6cyclictest1725-21cron07:55:010
2955499132,6cyclictest0-21swapper/011:45:160
2955499131,8cyclictest15014-21apt-get12:00:200
2955499131,5cyclictest17829-21cstates08:00:170
2955499130,9cyclictest8730-21cron09:00:000
2955499130,6cyclictest5817-21/usr/sbin/munin08:50:380
2955599126,2cyclictest18088-21df10:45:231
2955599125,3cyclictest29838-21grep09:50:271
2955599124,4cyclictest13031-21apt-get11:55:201
2955599123,8cyclictest9654-21apt-get07:40:181
2955599123,7cyclictest2318-21/usr/sbin/munin07:20:211
2955599122,5cyclictest1013-21apt-get08:40:171
2955599121,8cyclictest5801-21runrttasks10:14:201
2955599121,8cyclictest0-21swapper/108:20:171
2955599121,2cyclictest0-21swapper/112:35:181
2955499124,2cyclictest14214-21fschecks_time10:35:200
2955499123,8cyclictest20728-21apt-get09:30:170
2955499123,2cyclictest3578-21gltestperf11:30:230
2955499122,6cyclictest0-21swapper/007:10:120
2955499122,5cyclictest11962-21apt-get10:30:190
2955499121,4cyclictest0-21swapper/007:30:170
2955499120,8cyclictest10001-21/usr/sbin/munin07:40:230
2955499120,7cyclictest0-21swapper/007:20:170
2955499120,5cyclictest26634-21apt-get09:45:160
291642120,0sleep10-21swapper/111:11:331
2955599113,1cyclictest3017-21apt-get08:45:201
2955599112,6cyclictest31954-21munin-node07:15:011
2955599111,8cyclictest0-21swapper/111:15:181
2955599111,8cyclictest0-21swapper/109:05:161
2955599111,6cyclictest3190-21apt-get11:30:201
2955599111,4cyclictest0-21swapper/110:37:011
2955599111,3cyclictest0-21swapper/112:20:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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