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2022-08-14 - 20:09

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #6

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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ARM Freescale i.MX535 @1000 MHz, Linux 4.19.142-rt63+ (Profile)

Latency plot of shadow in rack #4, slot #6
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -h400 -i400 -q
Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the alll highest latencies:
System rack4slot6s.osadl.org (updated Sun Aug 14, 2022 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3184523110,3sleep031846-21if_err_eth007:55:170
2974822670,3sleep029752-21timerwakeupswit07:45:320
2091422630,2sleep020917-21switchtime11:25:330
174022510,2sleep01742-21sh08:05:010
2141221190,2sleep021411-21load09:20:260
2902521140,4chrt29027-21sort09:50:200
2045021130,3chrt20449-21ntpq07:10:260
857021120,3chrt8568-21awk08:30:260
2588621120,4chrt25884-21ls07:30:310
2816121070,4sleep028172-21/usr/sbin/munin11:55:160
501421030,2sleep05013-21pluginstate12:30:320
3055621010,3sleep030571-21munin-run12:05:000
253982950,3sleep025467-21grep09:35:310
310052940,4sleep031003-21ntp_states12:05:320
98162885,9sleep09880-21threads10:40:300
209832875,9sleep020984-21sshd09:19:270
317152855,8sleep031717-21memory10:00:280
20047996421,17cyclictest107202chrt10:45:230
20047996230,24cyclictest0-21swapper11:19:370
1896426216,26sleep018995-21irqstats07:05:170
48312610,3sleep04833-21fgrep08:15:270
2004799608,18cyclictest5959-21/usr/sbin/munin12:35:230
20047995936,14cyclictest2070-21/usr/sbin/munin08:05:250
20047995910,16cyclictest27300-21/usr/sbin/munin11:50:270
2004799588,18cyclictest9758-21chrt08:35:280
2004799588,16cyclictest15116-21chrt11:05:010
20047995834,15cyclictest3500-21/usr/sbin/munin08:10:250
20047995833,16cyclictest27802-21irqstats09:45:240
20047995823,13cyclictest87-21jbd2/mmcblk0p1-08:55:180
20047995811,19cyclictest32174-21sshd12:10:240
2004799579,17cyclictest22285-21users11:30:400
2004799579,17cyclictest18620-21/usr/sbin/munin09:10:210
2004799579,17cyclictest12432-21/usr/sbin/munin08:45:280
2004799578,17cyclictest10891-21/usr/sbin/munin08:40:290
2004799578,16cyclictest30213-21/usr/sbin/munin09:55:350
2004799577,17cyclictest26585-21/usr/sbin/munin07:35:120
2004799576,17cyclictest2911-21/usr/sbin/munin10:15:390
20047995733,15cyclictest17829-21/usr/sbin/munin09:05:310
20047995731,15cyclictest25637-21/usr/sbin/munin11:45:160
20047995729,15cyclictest7385-21/usr/sbin/munin10:30:380
20047995711,16cyclictest1096-21ntp_states12:15:300
2004799569,16cyclictest277-21runrttasks07:25:130
2004799569,15cyclictest5501-21/usr/sbin/munin10:25:230
2004799568,16cyclictest22508-21/usr/sbin/munin09:25:170
2004799568,14cyclictest15431-21memory11:05:240
20047995632,15cyclictest23043-21/usr/sbin/munin11:35:200
20047995630,16cyclictest1245-21runrttasks10:08:030
20047995620,11cyclictest24531-21ntpq11:40:240
20047995619,13cyclictest5424-21sort10:25:010
20047995612,16cyclictest1927-21ntp_states10:10:310
2004799559,18cyclictest22608-21munin-run07:20:020
2004799559,17cyclictest2115-21/usr/sbin/munin12:20:200
2004799559,14cyclictest5746-21/usr/sbin/munin08:20:290
2004799558,16cyclictest16044-21/usr/sbin/munin09:00:290
2004799557,16cyclictest13450-21/usr/sbin/munin08:50:270
2004799557,15cyclictest19722-21/usr/sbin/munin11:20:360
20047995533,14cyclictest7902-21runrttasks08:27:480
20047995533,14cyclictest24145-21/usr/sbin/munin09:30:340
20047995530,14cyclictest12638-21munin-node10:55:120
20047995525,19cyclictest0-21swapper07:40:130
20047995510,19cyclictest12193-21sshd10:52:280
2004799549,17cyclictest26965-21users09:40:360
20047995431,14cyclictest8224-21/usr/sbin/munin10:35:270
20047995430,15cyclictest22915-21/usr/sbin/munin07:20:210
20047995429,16cyclictest3581-21runrttasks12:25:190
20047995429,15cyclictest30534-21/usr/sbin/munin07:50:150
2004799538,14cyclictest16522-21/usr/sbin/munin11:10:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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