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2021-06-13 - 00:54

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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ARMv7 Processor rev 5 (v7l), 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 Sat Jun 12, 2021 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1854722340,2sleep018549-21grep08:20:020
377421530,3sleep03775-21sshd07:20:300
1599021290,4chrt15988-21latency10:15:280
160921210,2sleep01612-21latency_hist09:20:020
2789221200,3chrt27893-21ntpq08:55:230
2660721190,3chrt26604-21ntpq08:50:260
740321170,4sleep07441-21users09:40:390
2518321170,3sleep024844-21/usr/sbin/munin10:50:340
3194629615,64sleep00-21swapper07:05:220
147362950,4sleep014750-21memory10:10:270
7912850,3sleep0826-21netstat07:10:280
9762800,3sleep0977-21sshd11:22:310
264592780,4sleep026492-21wc10:55:360
107752780,4sleep010837-21awk12:00:270
488996843,16cyclictest10472-21runrttasks09:54:300
488996533,17cyclictest269-21runrttasks07:31:100
488996524,14cyclictest5571-21/usr/sbin/munin11:40:250
488996511,19cyclictest2592-21sshd07:16:310
488996436,17cyclictest9296-21load11:55:180
488996436,16cyclictest4242-21awk11:35:230
488996429,23cyclictest0-21swapper07:58:090
488996426,11cyclictest4536-21ntpq09:30:330
488996236,16cyclictest7549-21/usr/sbin/munin07:35:340
305412620,2sleep030544-21sed11:10:370
19032620,3sleep01906-21grep09:20:230
117962623,8sleep00-21swapper07:53:020
488996119,14cyclictest21774-21seq10:37:080
488996111,16cyclictest20510-21users08:25:320
48899608,17cyclictest17431-21ntpq10:20:310
488996034,17cyclictest16650-21/usr/sbin/munin08:10:330
488996034,16cyclictest16927-21/usr/sbin/munin12:25:150
488996023,16cyclictest11291-21users09:55:450
488996019,13cyclictest6713-21ls11:45:170
488996010,18cyclictest3014-21df09:25:120
48899598,17cyclictest5539-21/usr/sbin/munin09:35:380
488995934,14cyclictest12393-21/usr/sbin/munin10:00:300
488995916,13cyclictest13277-21/usr/sbin/munin10:05:320
488995911,18cyclictest15437-21latency_hist12:20:010
48899589,18cyclictest2985-21ntp_states11:30:270
48899589,16cyclictest15584-21/usr/sbin/munin12:20:190
48899589,15cyclictest19806-21fw_packets10:30:290
48899589,14cyclictest9621-21/usr/sbin/munin07:45:360
48899587,15cyclictest14450-21sshd08:03:310
488995834,16cyclictest9334-21latency_hist09:50:010
488995834,15cyclictest18676-21/usr/sbin/munin12:30:290
488995831,14cyclictest31755-21chrt09:10:220
48899579,15cyclictest19424-21/usr/sbin/munin12:35:170
48899579,14cyclictest47952sleep007:25:320
48899578,17cyclictest22477-21/usr/sbin/munin08:35:270
48899578,14cyclictest31276-21/usr/sbin/munin11:15:370
48899577,17cyclictest28710-21/usr/sbin/munin11:05:430
488995734,14cyclictest23143-21chrt10:42:380
488995733,15cyclictest23972-21/usr/sbin/munin08:40:200
488995733,15cyclictest21241-21/usr/sbin/munin08:30:130
488995732,15cyclictest8026-21/usr/sbin/munin11:50:190
488995731,16cyclictest18838-21/usr/sbin/munin10:25:320
488995730,16cyclictest28985-21df09:00:140
488995719,14cyclictest8633-21sh07:40:290
488995711,17cyclictest27727-21ntp_states11:00:290
48899569,14cyclictest13286-21ntp_states12:10:280
488995632,16cyclictest23710-21/usr/sbin/munin10:45:190
488995610,16cyclictest30810-21users09:05:340
48899558,17cyclictest15735-21seq08:08:350
488995532,14cyclictest19431-21sendmail-mta08:22:060
488995528,16cyclictest25381-21/usr/sbin/munin08:45:270
488995510,18cyclictest11901-21memory12:05:200
48899547,16cyclictest2444-21seq11:29:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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