[mythtv] Suggestion for improving SLOW channel changing inLiveTV.....

Lincoln Dale ltd at interlink.com.au
Sun Sep 11 00:46:54 UTC 2005

Daniel Kristjansson wrote:
> On Sat, 2005-09-10 at 22:38 +1000, Lincoln Dale wrote:
>> i ran 0.17 for a while with setsockopt TCP_NODELAY to disable nagling.
>> i didn't verify whether it was a benefit but based on my perception of 
>> delay, it shaved 100msec of various things.
> I think this would be safe for the RingBuffer data socket... 

the TCP socket for frontend/backend communication could also do with this.

without this, any frontend's commands to the backend are automatically 
delayed 100msec as typically those aren't a full TCP segment worth.

if this uncovers any race-conditions then those need to be fixed - one 
shouldn't rely on nagling to mask a race.

i'll open a ticket & patch for these if folks would like ..
pretty easy 100msec shaving of time!



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