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2024-11-23 - 17:06

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #7

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 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: 50.5 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack5slot7s.osadl.org (updated Sat Nov 23, 2024 12:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15149224462197,91sleep00-21swapper07:08:090
154019917217,126cyclictest23962-21apt-get08:00:240
154019916819,118cyclictest31307-21apt-get12:00:280
154019916618,123cyclictest23784-21munin-run08:00:030
154019916518,123cyclictest11245-21df_inode09:55:300
154019916417,102cyclictest32204-21df_inode12:05:300
154019916318,24cyclictest19171-21diskstats07:30:330
154019916239,23cyclictest23697-21missed_timers11:10:480
154019916219,115cyclictest27593-21apt-get08:20:270
154019916212,27cyclictest4369-21apt-get12:35:190
154019916212,105cyclictest18454-21unixbench_singl10:36:050
154019916117,25cyclictest12861-21df_inode10:05:300
154019916112,26cyclictest26422-21apt-get08:16:320
154019916014,24cyclictest26015-21apt-get11:30:250
154019915921,109cyclictest17010-21apt-get10:30:240
154019915916,26cyclictest30151-21/usr/sbin/munin11:55:040
154019915914,120cyclictest28421-21apt-get08:25:220
154019915913,124cyclictest15951-21cut07:11:040
154019915842,95cyclictest30929-21mailstats11:57:010
154019915840,21cyclictest25116-21kernelversion08:05:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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