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2023-03-20 - 16:22

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 Mon Mar 20, 2023 12:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2316227672,2sleep10-21swapper/107:05:131
2457026841,18sleep00-21swapper/007:05:540
2494923629,3sleep10-21swapper/107:10:001
2513699240,23cyclictest25739-21meminfo08:30:161
25135992424,0cyclictest0-21swapper/008:02:300
2513699210,20cyclictest11787-21meminfo07:55:191
2513699210,0cyclictest0-21swapper/111:55:211
25135992121,0cyclictest0-21swapper/012:37:180
2513599211,15cyclictest16459-21apt-get12:15:140
2513599210,1cyclictest29177-21/usr/sbin/munin11:25:200
2513699200,19cyclictest22871-21meminfo09:45:191
25136991917,1cyclictest7040-21latency_hist07:45:001
2513699190,18cyclictest7858-21meminfo07:45:171
2513699190,18cyclictest5340-21meminfo11:45:241
2513699190,18cyclictest26803-21meminfo09:55:181
2513699190,18cyclictest1175-21meminfo08:50:161
25135991916,2cyclictest1945-21runrttasks08:17:470
2513599190,8cyclictest0-21swapper/011:00:190
295502180,0sleep00-21swapper/010:01:130
2513699183,14cyclictest8249-21diskmemload10:17:051
2513599186,6cyclictest11465-21/usr/sbin/munin10:40:240
2513599180,17cyclictest7299-21meminfo11:50:210
2513599180,17cyclictest21813-21meminfo08:20:220
2513599180,12cyclictest17358-21apt-get10:55:150
2513699177,3cyclictest11468-21apt-get10:40:141
2513699171,8cyclictest2692-21apt-get11:40:131
2513599171,6cyclictest20239-21apt-get09:40:170
2513599171,5cyclictest664-21apt-get11:35:130
25135991715,1cyclictest31369-21sshd07:23:440
2513599170,16cyclictest23044-21meminfo12:30:210
2513699163,9cyclictest16522-21/usr/sbin/munin08:05:221
2513699161,12cyclictest10385-21apt-get09:15:171
2513699160,16cyclictest1346-21meminfo11:35:171
2513699160,15cyclictest27891-21meminfo11:20:181
2513599164,9cyclictest25064-21apt-get08:30:120
2513599164,4cyclictest8705-21/usr/sbin/munin11:55:140
2513599163,5cyclictest0-21swapper/007:55:140
2513599162,8cyclictest7321-21/usr/sbin/munin07:45:130
2513599162,10cyclictest4667-21apt-get11:45:190
2513599161,13cyclictest31155-21apt-get11:30:200
2513599160,9cyclictest0-21swapper/010:20:140
2513599160,4cyclictest0-21swapper/011:05:150
2513599160,15cyclictest1904-21meminfo07:30:170
2513699155,5cyclictest21301-21apt-get11:05:151
2513699153,7cyclictest4488-21apt-get09:00:121
2513699152,8cyclictest7524-21apt-get10:30:151
2513699151,8cyclictest25234-21apt-get11:15:141
25136991510,4cyclictest19345-21apt-get11:00:191
2513699150,9cyclictest7615-21/usr/sbin/munin11:50:241
2513699150,8cyclictest25319-21/usr/sbin/munin12:35:281
2513699150,14cyclictest7129-21meminfo09:05:211
2513699150,14cyclictest29854-21meminfo11:25:181
2513599156,7cyclictest14328-21apt-get09:25:130
2513599156,5cyclictest0-21swapper/010:30:170
2513599155,7cyclictest17184-21apt-get08:10:110
2513599153,6cyclictest5556-21apt-get10:25:130
2513599152,6cyclictest10382-21/usr/sbin/munin09:15:210
2513599151,5cyclictest23095-21apt-get08:25:130
2513599151,5cyclictest0-21swapper/008:45:160
2513599151,13cyclictest1405-21munin-run10:15:000
2513599151,10cyclictest20253-21perf12:25:000
2513599150,14cyclictest13214-21meminfo12:05:250
2513699148,4cyclictest3046-21apt-get07:35:011
2513699146,5cyclictest27720-21apt-get07:15:151
2513699145,7cyclictest0-21swapper/112:15:141
2513699143,6cyclictest27029-21apt-get08:35:111
2513699143,3cyclictest3201-21runrttasks07:35:011
2513699142,4cyclictest0-21swapper/112:05:181
2513699141,7cyclictest29013-21apt-get08:40:121
25136991412,1cyclictest21-21ksoftirqd/108:47:311
2513699140,13cyclictest9820-21meminfo07:50:161
2513699140,13cyclictest15176-21meminfo12:10:251
2513599146,3cyclictest4722-21/usr/sbin/munin09:00:140
2513599144,8cyclictest9488-21apt-get10:35:140
2513599144,7cyclictest0-21swapper/009:50:200
2513599144,4cyclictest9147-21apt-get07:50:130
2513599144,3cyclictest29013-21apt-get08:40:130
2513599143,9cyclictest30079-21apt-get10:05:140
2513599142,6cyclictest0-21swapper/011:10:300
2513599141,7cyclictest27218-21apt-get11:20:130
2513599141,6cyclictest6457-21apt-get09:05:160
2513599141,5cyclictest18258-21apt-get09:35:160
2513599141,4cyclictest8414-21apt-get09:10:120
2513599140,8cyclictest0-21swapper/010:45:180
2513599140,7cyclictest0-21swapper/007:35:130
2513599140,7cyclictest0-21swapper/007:15:150
2513699139,1cyclictest1945-21runrttasks10:25:321
2513699138,4cyclictest0-21swapper/112:20:221
2513699134,6cyclictest18031-21/usr/sbin/munin10:55:211
2513699134,3cyclictest22944-21latency_hist08:25:001
2513699133,5cyclictest0-21swapper/109:35:221
2513699133,4cyclictest24173-21apt-get09:50:191
2513699133,4cyclictest16298-21apt-get09:30:181
2513699132,8cyclictest32325-21ls07:25:171
2513699132,2cyclictest13436-21apt-get10:45:181
2513699131,6cyclictest0-21swapper/110:05:141
2513699131,10cyclictest8249-21diskmemload12:29:241
2513699130,9cyclictest0-21swapper/109:25:171
2513699130,1cyclictest1792-21snmpd11:10:291
2513599134,6cyclictest0-21swapper/009:55:130
2513599133,5cyclictest0-21swapper/011:15:150
2513599133,4cyclictest2917-21diskstats11:40:140
2513599133,4cyclictest20406-21taskset12:25:160
2513599132,4cyclictest0-21swapper/007:25:220
2513599131,7cyclictest0-21swapper/007:10:170
2513599131,5cyclictest12580-21df09:20:150
2513599131,11cyclictest5223-21apt-get07:40:120
2513599130,12cyclictest11247-21meminfo12:00:210
2513699123,6cyclictest3087-21/usr/sbin/munin08:55:171
2513699123,6cyclictest12367-21apt-get09:20:141
2513699122,6cyclictest3596-21apt-get10:20:151
2513699122,3cyclictest0-21swapper/110:35:141
2513699122,3cyclictest0-21swapper/108:15:161
2513699122,2cyclictest0-21swapper/109:10:121
2513699121,9cyclictest13271-21apt-get08:00:181
2513699121,7cyclictest17189-21munin-run10:55:001
2513699121,6cyclictest0-21swapper/110:00:161
2513699121,3cyclictest22372-21apt-get12:30:171
2513699120,12cyclictest32713-21meminfo10:10:191
2513599124,4cyclictest0-21swapper/008:35:110
2513599123,5cyclictest15325-21ntp_states12:10:270
2513599122,9cyclictest62050irq/129-eth0-rx10:15:130
2513599122,5cyclictest15222-21apt-get08:05:120
2513599122,3cyclictest15617-21df_inode10:50:180
2513599121,1cyclictest0-21swapper/009:30:170
2513599120,4cyclictest0-21swapper/009:45:140
2513599120,4cyclictest0-21swapper/008:55:200
2513699115,5cyclictest0-21swapper/111:30:211
2513699113,5cyclictest24681-21seq08:27:461
2513699113,2cyclictest0-21swapper/112:00:171
2513699111,4cyclictest29701-21apt-get07:20:131
2513699111,4cyclictest0-21swapper/108:10:121
2513699110,5cyclictest20692-21/usr/sbin/munin09:40:201
2513599110,2cyclictest481-21apt-get08:50:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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