[mythtv-commits] Ticket #13171: Default to more RPi video buffs, falling back on alloc failure

[MythTV]

#13171: Default to more RPi video buffs, falling back on alloc failure
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 Reporter:  Doug Larrick <doug@…>  |          Owner:  pbennett
     Type:  Patch - Feature        |         Status:  assigned
 Priority:  minor                  |      Milestone:  needs_triage
Component:  Ports - rPi            |        Version:  Master Head
 Severity:  medium                 |     Resolution:
 Keywords:                         |  Ticket locked:  0
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Comment (by pbennett):

 I have some problems with this patch #13171.

 * It is already possible to change the number of output buffers with the
 setting !OmxVideoBuffers (e.g. -O !OmxVideoBuffers=15 on the command
 line). We could if needed add it to the setup GUI or change the default
 value to 15.
 * The criteria for failure and fallback. The only time the !CreateBuffers
 fails is if the malloc fails, and that will likely never happen. If it
 causes low memory, the system will instead begin swapping, and then
 performance will slow to a crawl. I do not think that fallback logic is
 useful.

 I have tried with -O !OmxVideoBuffers=15 and have not been able to see any
 difference in performance.

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Ticket URL: <https://code.mythtv.org/trac/ticket/13171#comment:12>
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