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2023-01-28 - 04:14

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 highest latencies:
System rackcslot5s.osadl.org (updated Fri Jan 27, 2023 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1597528782,2sleep00-21swapper/007:05:140
1744527339,7sleep10-21swapper/107:08:001
1781999340,33cyclictest32326-21meminfo09:05:220
296182310,0sleep029620-21needreboot10:20:310
1782099250,24cyclictest32650-21meminfo11:50:161
1781999250,24cyclictest5041-21meminfo10:40:200
1781999240,23cyclictest6195-21meminfo12:05:240
1781999230,22cyclictest8151-21meminfo12:10:150
1781999230,22cyclictest14911-21meminfo11:05:280
1782099220,21cyclictest17688-21meminfo09:50:201
1781999220,21cyclictest7828-21meminfo09:25:200
1781999220,21cyclictest26401-21meminfo08:50:200
1782099211,8cyclictest17836-21apt-get08:30:141
17820992116,4cyclictest11246-21cron12:20:011
1782099210,20cyclictest31527-21meminfo10:25:321
1781999210,20cyclictest714-21meminfo07:45:220
1781999210,20cyclictest19660-21meminfo09:55:200
1781999210,20cyclictest12581-21meminfo08:15:200
1782099200,19cyclictest6676-21meminfo08:00:181
1782099200,19cyclictest29554-21meminfo10:20:291
1781999202,1cyclictest21199-21diskstats10:00:180
17819992020,0cyclictest0-21swapper/010:46:450
17819992018,1cyclictest0-21swapper/007:35:290
1781999200,7cyclictest0-21swapper/007:40:160
1782099190,18cyclictest18016-21meminfo12:35:171
1782099190,17cyclictest8979-21meminfo10:50:231
1781999190,9cyclictest15866-21apt-get08:25:170
17820991816,1cyclictest18064-21diskstats07:10:141
1782099180,17cyclictest29029-21meminfo07:35:241
1782099180,17cyclictest20484-21meminfo08:35:231
1782099180,17cyclictest12115-21memory12:20:191
1781999183,8cyclictest0-21swapper/008:35:190
1781999181,8cyclictest30009-21apt-get11:45:120
17819991813,4cyclictest19808-21munin-node09:21:050
1781999180,8cyclictest0-21swapper/008:20:200
1781999180,17cyclictest22799-21meminfo11:25:200
1781999180,17cyclictest15717-21meminfo09:45:200
1782099179,4cyclictest0-21swapper/111:30:131
1782099174,8cyclictest20411-21apt-get07:15:171
1782099174,6cyclictest9942-21apt-get08:10:171
1782099170,16cyclictest26731-21meminfo11:35:171
1781999175,9cyclictest28529-21chrt10:18:310
1781999171,7cyclictest9447-21apt-get12:15:130
1781999171,7cyclictest7977-21apt-get08:05:180
1781999170,7cyclictest0-21swapper/010:55:160
1781999170,4cyclictest14633-21ls12:25:250
1781999170,0cyclictest0-21swapper/008:11:430
17820991616,0cyclictest0-21swapper/107:45:351
17820991615,0cyclictest13074-21apt-get09:40:151
17820991610,4cyclictest28149-21apt-get07:35:011
1782099160,16cyclictest1048-21meminfo10:30:231
1782099160,15cyclictest8652-21meminfo08:05:231
206272150,0sleep10-21swapper/109:58:271
1782099156,6cyclictest3361-21unixbench_singl07:50:301
1782099155,9cyclictest19743-21sshd11:17:411
1782099154,7cyclictest29686-21apt-get09:00:171
1782099154,4cyclictest31837-31update-apt-xapi07:41:141
1782099151,1cyclictest15502-21runrttasks08:23:021
1782099150,14cyclictest25038-21meminfo07:25:181
1782099150,14cyclictest1897-21meminfo09:10:211
1781999153,9cyclictest0-21swapper/011:20:120
1781999153,5cyclictest17925-21proc_pri09:50:230
1781999152,6cyclictest0-21swapper/010:05:240
1781999152,6cyclictest0-21swapper/007:10:120
1781999150,8cyclictest3539-21apt-get12:00:110
1781999150,10cyclictest0-21swapper/010:35:170
1782099146,4cyclictest5516-21/usr/sbin/munin12:05:271
1782099144,5cyclictest16448-21/usr/sbin/munin12:30:231
1782099143,6cyclictest31104-21/usr/sbin/munin11:45:221
1782099143,5cyclictest22945-21apt-get10:05:171
1782099143,3cyclictest0-21swapper/110:45:151
1782099142,8cyclictest11909-21apt-get08:15:151
1782099141,6cyclictest2380-21apt-get10:35:171
1782099141,6cyclictest11098-21apt-get09:35:211
1782099140,6cyclictest7471-21/usr/sbin/munin12:10:231
1781999143,5cyclictest0-21swapper/010:50:170
1781999143,5cyclictest0-21swapper/009:15:330
1781999143,4cyclictest0-21swapper/009:40:140
1781999141,6cyclictest17337-21apt-get12:35:120
1781999141,5cyclictest31977-21apt-get11:50:120
1781999141,5cyclictest0-21swapper/012:20:130
1781999140,6cyclictest0-21swapper/008:30:140
1781999140,5cyclictest0-21swapper/011:10:230
1781999140,5cyclictest0-21swapper/011:10:230
1781999140,13cyclictest4694-21meminfo07:55:200
1781999140,13cyclictest30358-21meminfo09:00:230
1781999140,13cyclictest24760-21meminfo11:30:160
172752140,0sleep10-21swapper/111:10:311
172752140,0sleep10-21swapper/111:10:301
1782099137,5cyclictest7152-21apt-get09:25:151
1782099134,5cyclictest22331-21/usr/sbin/munin08:40:251
1782099133,8cyclictest10273-21apt-get10:55:161
1782099133,6cyclictest4366-21apt-get10:40:141
1782099133,6cyclictest22121-21apt-get11:25:121
1782099133,3cyclictest16597-21needreboot08:25:231
1782099132,6cyclictest4019-21apt-get07:55:141
17820991313,0cyclictest0-21swapper/112:01:591
1782099130,5cyclictest1747-21sshd09:22:401
1782099130,12cyclictest23076-21meminfo07:20:241
1781999137,4cyclictest1751-21irqbalance11:38:070
1781999135,7cyclictest23369-21processes07:20:270
1781999134,6cyclictest24908-21apt-get10:10:140
1781999134,5cyclictest9117-21/usr/sbin/munin09:30:160
1781999132,6cyclictest11098-21apt-get09:35:200
1781999132,6cyclictest0-21swapper/007:25:140
1781999131,7cyclictest0-21swapper/011:00:160
1781999131,5cyclictest1518-21apt-get11:55:120
1781999131,4cyclictest0-21swapper/010:30:140
1781999130,8cyclictest1187-21apt-get09:10:160
1781999130,6cyclictest0-21swapper/008:55:160
1781999130,6cyclictest0-21swapper/007:15:160
1781999130,2cyclictest0-21swapper/008:00:130
1782099129,1cyclictest0-21swapper/110:18:011
1782099124,2cyclictest31650-21/usr/sbin/munin09:05:251
1782099123,8cyclictest14074-21perf11:05:011
1782099122,4cyclictest3196-21apt-get09:15:171
17820991212,0cyclictest0-21swapper/109:30:141
1782099120,9cyclictest22564-21seq10:02:531
1782099120,3cyclictest15045-21apt-get09:45:161
1782099120,11cyclictest24432-21meminfo08:45:171
1781999129,1cyclictest23758-21apt-get08:45:130
1781999125,1cyclictest1945-21runrttasks08:40:290
1781999122,6cyclictest0-21swapper/007:30:130
1781999120,6cyclictest0-21swapper/010:25:210
1782099119,1cyclictest27695-21apt-get08:55:151
1782099115,2cyclictest14234-21apt-get11:05:211
1782099113,2cyclictest28043-21apt-get11:40:131
1782099111,8cyclictest26724-21perf10:14:591
1782099111,5cyclictest20153-21apt-get11:20:121
1782099110,5cyclictest0-21swapper/112:25:111
1781999116,3cyclictest2048-21/usr/sbin/munin07:50:250
1781999113,3cyclictest0-21swapper/011:40:120
1781999112,8cyclictest18161-21apt-get11:15:130
171272110,0sleep00-21swapper/012:34:370
1782099104,5cyclictest25725-21apt-get08:50:141
1782099103,3cyclictest0-21swapper/111:55:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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