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2022-07-06 - 17:48

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 792 highest latencies:
System rackcslot5s.osadl.org (updated Wed Jul 06, 2022 12:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
285326853,11sleep00-21swapper/007:09:060
290426557,4sleep10-21swapper/107:09:411
312399241,19cyclictest31713-21apt-get11:05:120
312399240,23cyclictest13589-21meminfo08:55:160
3124992217,2cyclictest111rcu_preempt11:25:001
312399220,21cyclictest20206-21meminfo07:50:180
312399220,21cyclictest14677-21meminfo10:20:160
312399210,20cyclictest17704-21meminfo11:50:150
3124992018,1cyclictest2345-21/usr/sbin/munin12:35:181
3123992019,1cyclictest9-21ksoftirqd/011:00:200
3123992017,2cyclictest9-21ksoftirqd/011:50:010
312399200,7cyclictest0-21swapper/012:25:110
312399200,7cyclictest0-21swapper/007:45:120
312399200,19cyclictest21649-21meminfo12:00:170
312499197,11cyclictest21-21ksoftirqd/111:35:121
312499194,3cyclictest111rcu_preempt07:30:001
3124991910,5cyclictest8098-21gltestperf07:20:131
312399191,9cyclictest3248-21apt-get11:15:110
312399191,17cyclictest111rcu_preempt10:06:020
312399190,18cyclictest5722-21meminfo08:35:150
312399190,10cyclictest15604-21apt-get07:40:110
312399190,10cyclictest10160-21ls08:45:210
312399190,0cyclictest0-21swapper/009:53:300
3123991817,1cyclictest0-21swapper/008:30:140
3123991816,1cyclictest9-21ksoftirqd/009:20:000
312399180,17cyclictest5911-21meminfo11:20:170
312399180,17cyclictest3819-21meminfo07:10:170
312399180,17cyclictest26308-21meminfo08:05:170
312399180,16cyclictest0-21swapper/008:25:240
312399180,13cyclictest0-21swapper/010:15:170
312399180,10cyclictest8349-21ls07:20:150
312499175,7cyclictest15069-21apt-get11:45:121
312499175,10cyclictest12020-21apt-get10:15:121
312499173,6cyclictest18829-21apt-get09:10:141
312499171,9cyclictest19895-21apt-get10:35:121
312499171,0cyclictest6133-21/usr/sbin/munin10:00:221
312499170,16cyclictest32307-21sshd09:43:351
312399174,11cyclictest11122-21apt-get11:35:110
3123991716,1cyclictest9-21ksoftirqd/009:25:000
312399171,4cyclictest21691-21apt-get07:55:110
312399170,3cyclictest111rcu_preempt09:45:000
312399170,16cyclictest6412-21meminfo07:15:380
312399170,16cyclictest18606-21meminfo10:30:190
312499168,7cyclictest25635-21apt-get08:05:121
312499167,4cyclictest7030-21apt-get08:40:121
312499163,5cyclictest31713-21apt-get11:05:121
3124991613,2cyclictest18041-21cat09:05:221
312499160,15cyclictest3925-21meminfo11:15:161
312399164,10cyclictest1128-21/usr/sbin/munin12:30:170
312399162,9cyclictest25009-21ls10:45:210
312399161,9cyclictest10057-21apt-get10:10:120
312399161,9cyclictest0-21swapper/008:15:100
312399161,3cyclictest111rcu_preempt11:58:340
312399160,8cyclictest14898-21apt-get09:00:110
312399160,15cyclictest9834-21meminfo11:30:170
312399160,12cyclictest24737-21apt-get09:25:120
312399160,10cyclictest31544-21/usr/sbin/munin08:20:110
312499158,5cyclictest17569-21apt-get07:45:121
312499154,9cyclictest9161-21apt-get11:30:111
312499154,7cyclictest26868-21apt-get12:15:131
312499153,7cyclictest14005-21apt-get10:20:111
312499152,8cyclictest10790-21munin-run08:50:011
312499152,12cyclictest24902-21apt-get12:10:111
312499150,14cyclictest29334-21meminfo09:35:151
312399155,5cyclictest18058-21timerwakeupswit09:05:230
312399152,8cyclictest0-21swapper/010:00:140
312399152,5cyclictest20001-21ls09:10:240
312399151,7cyclictest0-21swapper/011:25:110
312399151,4cyclictest111rcu_preempt12:10:120
3123991513,1cyclictest29263-21grep12:20:140
312399150,14cyclictest7702-21meminfo08:40:160
312399150,14cyclictest20569-21meminfo10:35:180
312499146,2cyclictest30817-21apt-get12:25:111
312499145,5cyclictest30814-21/usr/sbin/munin11:00:201
312499145,3cyclictest16329-21tail10:25:131
312499143,6cyclictest4159-21apt-get09:55:171
312499143,6cyclictest21216-21cut09:15:141
312499142,8cyclictest18998-21apt-get11:55:131
312499141,9cyclictest5959-21diskstats07:15:331
312499141,7cyclictest1944-21runrttasks12:32:331
312499141,3cyclictest111rcu_preempt07:50:151
3124991413,1cyclictest21-21ksoftirqd/109:50:001
3124991413,0cyclictest2096-21ntp_states11:10:181
312499140,13cyclictest8767-21meminfo10:05:161
312499140,13cyclictest23470-21meminfo09:20:321
312499140,11cyclictest22688-21/usr/sbin/munin10:40:181
312399146,7cyclictest21874-21apt-get10:40:110
312399146,5cyclictest14299-21memory07:35:170
312399145,6cyclictest27982-21/usr/sbin/munin10:55:120
312399144,7cyclictest0-21swapper/009:55:170
312399144,6cyclictest0-21swapper/012:35:120
312399143,8cyclictest17783-21munin-run10:30:010
312399143,10cyclictest26868-21apt-get12:15:130
312399142,9cyclictest1945-21runrttasks09:36:160
312399142,6cyclictest10953-21apt-get08:50:110
3123991413,1cyclictest9-21ksoftirqd/007:30:130
3123991412,1cyclictest9-21ksoftirqd/008:10:150
312399140,4cyclictest0-21swapper/009:30:110
312399140,13cyclictest26471-21meminfo10:50:160
312399140,13cyclictest10322-21meminfo07:25:160
312499136,3cyclictest26522-21ls10:50:161
312499134,5cyclictest23614-21/usr/sbin/munin12:05:151
312499134,5cyclictest17032-21apt-get11:50:111
312499134,5cyclictest11620-21apt-get07:30:131
312499133,5cyclictest23494-21munin-run08:00:001
312499132,7cyclictest10950-21/usr/sbin/munin08:50:201
312499131,8cyclictest23838-21apt-get10:45:131
312499131,5cyclictest0-21swapper/111:40:161
3124991311,1cyclictest2176-21/usr/sbin/munin09:50:201
312499130,13cyclictest29524-21meminfo12:20:161
312499130,13cyclictest27372-21meminfo09:30:171
312399132,8cyclictest23672-21apt-get08:00:110
312399130,8cyclictest1138-21/usr/sbin/munin09:45:180
312399130,12cyclictest23611-21meminfo12:05:160
312499125,4cyclictest13624-21apt-get07:35:111
312499125,3cyclictest31547-21apt-get08:20:121
312499124,7cyclictest27764-21apt-get10:55:111
312499124,3cyclictest8181-21wc11:25:191
312499123,4cyclictest5048-21apt-get08:35:111
312499123,4cyclictest12918-21apt-get08:55:121
312499121,6cyclictest16720-21awk09:05:001
3124991210,1cyclictest29560-21apt-get08:15:101
3124991210,1cyclictest17400-21cron07:44:591
312499120,5cyclictest3144-21apt-get07:10:131
312399121,5cyclictest0-21swapper/011:40:110
312499116,3cyclictest1945-21runrttasks10:32:221
312499115,5cyclictest3081-21apt-get08:30:121
312499113,4cyclictest29303-21seq08:14:051
312499113,2cyclictest23672-21apt-get08:00:121
312499113,1cyclictest0-21swapper/110:10:121
312499112,3cyclictest21471-21/usr/sbin/munin12:00:161
312499110,4cyclictest0-21swapper/109:25:411
312399114,4cyclictest0-21swapper/011:10:110
312499104,4cyclictest1988-21pmu-power08:25:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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