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2023-03-31 - 12:03

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 highest latencies:
System rack4slot6s.osadl.org (updated Fri Mar 31, 2023 00:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2693622590,2sleep026935-21grep20:40:220
1575122570,2sleep015752-21load22:05:180
2065421590,3sleep020651-21grep00:35:010
2049021400,4chrt20491-21/usr/sbin/munin20:15:250
1829721360,3sleep018296-21cat22:15:180
441521340,3sleep04417-21grep19:10:260
930921260,4chrt9307-21memory21:40:190
1340121190,3chrt13399-21sendmail_mailtr21:55:260
424221150,3chrt4243-21ntp_offset21:20:220
1649821130,4chrt16501-21latency20:00:180
1433021020,4sleep014275-21/usr/sbin/munin22:00:170
3128621010,4sleep031292-21df_inode23:10:140
1906021000,5sleep019085-21memory20:10:200
5852990,2sleep0583-21timerandwakeup23:15:350
105732960,3sleep010610-21load19:35:190
246742950,4sleep024742-21sed22:45:020
183822880,4sleep018383-21sshd20:06:530
130752845,9sleep013080-21df_inode19:45:160
84682824,65sleep08471-21vmstat19:25:370
208692820,4sleep020886-21/usr/sbin/munin00:35:260
133972810,2sleep013394-21grep00:05:320
274402784,8sleep027490-21irqstats22:55:160
119502750,4sleep011951-21ntpq00:00:240
299427418,31sleep03069-21/usr/sbin/munin19:05:240
293742720,2sleep029372-21ls20:50:180
323122680,3sleep032315-21sort21:00:370
3880996410,18cyclictest2658-21/usr/sbin/munin23:25:230
388099639,17cyclictest7807-21/usr/sbin/munin21:35:310
3880996136,15cyclictest10548-21/usr/sbin/munin21:45:180
3880996010,18cyclictest16852-21/usr/sbin/munin22:10:190
388099598,16cyclictest18141-21/usr/sbin/munin00:25:250
388099589,17cyclictest9917-21sshd23:52:170
388099589,16cyclictest24363-21ntp_states20:30:310
3880995835,15cyclictest6721-21/usr/sbin/munin23:40:210
3880995834,16cyclictest11699-21runrttasks21:50:160
3880995818,14cyclictest238812chrt22:39:460
3880995816,13cyclictest22307-21sshd22:32:170
388099578,16cyclictest11807-21/usr/sbin/munin19:40:140
388099578,15cyclictest2640-21/usr/sbin/munin21:15:300
3880995731,16cyclictest11173-21runrttasks23:57:040
3880995710,17cyclictest26122-21sshd20:36:580
388099569,19cyclictest15508-21switchtime19:55:270
388099569,18cyclictest26134-21/usr/sbin/munin22:50:150
3880995634,13cyclictest5388-21/usr/sbin/munin19:15:220
3880995633,15cyclictest7548-21runrttasks21:33:580
3880995633,15cyclictest24873-21/usr/sbin/munin22:45:170
3880995633,14cyclictest5881-21runrttasks21:25:440
3880995632,15cyclictest8648-21runrttasks23:47:240
3880995632,15cyclictest21573-21/usr/sbin/munin20:20:160
3880995632,15cyclictest20721-21runrttasks22:25:090
3880995631,16cyclictest1989-21runrttasks21:10:420
3880995619,13cyclictest30079-21interrupts23:05:150
3880995610,15cyclictest28642-21seq23:00:040
388099559,31cyclictest9336-21/usr/sbin/munin19:30:190
388099557,15cyclictest6597-21/usr/sbin/munin19:20:410
388099557,15cyclictest30494-21/usr/sbin/munin20:55:110
3880995531,15cyclictest16953-21/usr/sbin/munin00:20:240
3880995529,17cyclictest14945-21runrttasks00:11:100
388099549,16cyclictest19447-21/usr/sbin/munin22:20:340
388099548,14cyclictest22981-21/usr/sbin/munin20:25:260
388099547,15cyclictest28010-21/usr/sbin/munin20:45:170
3880995431,15cyclictest5997-21runrttasks23:36:540
3880995431,15cyclictest16638-21runrttasks00:19:320
388099537,13cyclictest1372-21/usr/sbin/munin23:20:130
3880995330,15cyclictest700-21/usr/sbin/munin21:05:150
3880995329,15cyclictest14535-21runrttasks19:52:100
3880995328,15cyclictest4110-21/usr/sbin/munin23:30:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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