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2023-03-20 - 16:35

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 792 highest latencies:
System rack4slot6s.osadl.org (updated Mon Mar 20, 2023 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2896022550,3sleep028962-21mailstats08:30:270
2587021240,5chrt25868-21irqstats10:25:180
672321210,3chrt6719-21ps09:10:260
2320821190,4chrt23209-21/usr/sbin/munin10:15:160
2203521030,3sleep022047-21sort10:10:220
2456021020,4sleep024564-21ntp_states12:25:310
321192900,3sleep032118-21sed10:50:010
199562900,4sleep020029-21ls07:55:300
241432880,3sleep024211-21latency_hist12:25:020
324662825,8sleep032492-21ntp_states10:50:260
225532810,3sleep022628-21timerwakeupswit08:05:270
100812810,3sleep010127-21grep11:30:200
687327720,33sleep06921-21ps07:05:230
142132754,59sleep014256-21/usr/sbin/munin09:40:210
158532734,60sleep015920-21awk09:45:290
77952714,55sleep07799-21ntp_states11:20:240
7775996726,14cyclictest8969-21sshd07:14:330
7775996625,20cyclictest0-21swapper07:17:590
777599619,17cyclictest11541-21/usr/sbin/munin09:30:300
7775996110,16cyclictest10477-21/usr/sbin/munin07:20:250
138552610,2sleep013857-21latency_hist11:45:010
7775996010,20cyclictest7364-21idleruntime-cro11:20:000
777599598,17cyclictest15225-21/usr/sbin/munin11:50:250
7775995910,15cyclictest13411-21users09:35:340
777599589,17cyclictest8846-21df_inode11:25:140
777599588,17cyclictest1315-21ntp_states10:55:260
7775995833,15cyclictest26085-21/usr/sbin/munin08:20:210
7775995833,15cyclictest20853-21/usr/sbin/munin08:00:210
7775995810,15cyclictest10252-21/usr/sbin/munin09:25:270
777599579,13cyclictest2345-21/usr/sbin/munin11:00:220
777599579,13cyclictest13104-21/usr/sbin/munin07:30:140
7775995733,16cyclictest17668-21idleruntime-cro12:00:010
7775995733,15cyclictest24524-21/usr/sbin/munin10:20:160
7775995730,17cyclictest2088-21runrttasks08:52:510
7775995729,16cyclictest17376-21/usr/sbin/munin07:45:280
7775995716,13cyclictest7707-21df09:15:170
777599569,16cyclictest269-21runrttasks08:45:200
777599568,19cyclictest14321-21/usr/sbin/munin07:35:150
777599568,14cyclictest3788-21/usr/sbin/munin09:00:200
7775995633,14cyclictest23436-21/usr/sbin/munin08:10:150
7775995633,14cyclictest20454-21/usr/sbin/munin12:10:190
7775995632,16cyclictest26610-21runrttasks12:34:250
7775995632,16cyclictest12551-21runrttasks07:27:060
7775995632,15cyclictest28324-21runrttasks10:35:090
7775995632,15cyclictest21723-21runrttasks12:15:160
7775995631,16cyclictest14655-21runrttasks11:46:270
7775995630,16cyclictest30793-21runrttasks08:38:510
7775995630,15cyclictest18704-21/usr/sbin/munin07:50:280
7775995628,17cyclictest32133-21runrttasks08:44:070
7775995610,18cyclictest20440-21munin-run10:05:010
777599559,16cyclictest28384-21munin-run08:29:590
777599559,15cyclictest16697-21/usr/sbin/munin09:50:370
777599559,14cyclictest5085-21/usr/sbin/munin09:05:310
777599559,14cyclictest11350-21/usr/sbin/munin11:35:210
777599558,16cyclictest8973-21/usr/sbin/munin09:20:170
777599557,15cyclictest27057-21/usr/sbin/munin10:30:190
7775995532,15cyclictest2575-21/usr/sbin/munin08:55:160
7775995532,14cyclictest18150-21/usr/sbin/munin09:55:180
7775995531,15cyclictest25288-21runrttasks08:15:570
7775995530,15cyclictest16243-21runrttasks07:40:340
7775995516,26cyclictest5192-21grep11:10:280
7775995514,14cyclictest20621-21seq10:05:150
7775995431,15cyclictest26816-21runrttasks12:35:100
7775995429,15cyclictest19662-21/usr/sbin/munin12:05:370
777599539,15cyclictest29938-21ntp_states10:40:270
7775995310,16cyclictest17879-21df_inode12:00:180
7775995310,14cyclictest3920-21ntp_states11:05:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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