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2023-09-26 - 20:12

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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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

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 20 highest latencies:
System rack4slot6s.osadl.org (updated Tue Sep 26, 2023 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2779722560,2sleep027798-21modprobe11:40:000
2049921380,4chrt20496-21ntp_states11:10:260
894921350,2sleep08951-21ls12:30:380
626221270,4chrt6260-21ntp_states10:15:290
606021220,5chrt6061-21latency_hist08:10:010
2182621210,2sleep021829-21sort09:10:250
2711321010,4sleep027119-21ntp_states09:30:290
45782940,4sleep04594-21forks12:15:190
165722890,3sleep016616-21/usr/sbin/munin08:50:220
207332865,9sleep020811-21mailstats09:05:340
152782867,65sleep015296-21fw_packets08:45:240
87032840,2sleep08704-21cat10:25:240
117242826,63sleep011737-21vmstat10:35:360
310542786,60sleep031093-21memory07:40:250
23043996831,15cyclictest29388-21latency_hist09:40:030
2185926819,27sleep021909-21df07:05:200
2304399658,23cyclictest17362-21sshd10:59:300
23043996324,15cyclictest14024-21ntp_states10:45:330
272192620,3sleep027218-21load07:25:250
202982620,3sleep020300-21latency_hist09:05:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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