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2024-04-27 - 13:43

OSADL QA Farm on Real-time of Mainline Linux

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

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 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data.
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: 100 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 rackfslot4s.osadl.org (updated Sat Apr 27, 2024 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2127321200,3chrt21270-21hddtemp_smartct20:15:340
1114821140,3chrt11149-21grep21:00:060
243921120,2chrt2441-21mailstats20:41:230
3150021080,2chrt31502-21cut00:30:310
2335721080,2chrt23354-21irqstats19:15:420
1235321080,2chrt12354-21sleep19:57:170
2783321020,1sleep027834-21ssh00:23:260
1263221010,2sleep012633-21stty22:00:480
1599221000,3chrt15993-21sh21:08:260
175002900,2sleep017501-21collect223:06:570
220872870,1sleep022090-21fschecks_count23:15:470
278882840,2sleep027889-21basename22:27:110
181112840,2chrt18042-21ntp_states21:12:210
19886908217,56cyclictest5428-21munin-plugin-st19:45:010
186092820,2sleep018610-21cat22:11:000
105352820,2chrt10515-21ntpq21:56:200
316712780,2sleep031672-21timerwakeupswit19:31:280
1988690765,59cyclictest29013-21ntpq21:31:290
19886907614,52cyclictest778-21cron21:40:000
116182760,3sleep011620-21sh23:55:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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