[bind10-dev] resolver performance research, take 2

Michal 'vorner' Vaner michal.vaner at nic.cz
Tue Jul 17 07:45:51 UTC 2012


Hello

On Tue, Jul 17, 2012 at 12:09:16AM -0700, JINMEI Tatuya / 神明達哉 wrote:
> - We might even introduce an optimization skipping any TTL adjustment
>   in that cache

As I'm looking at the „I don't need to re-render for 1 second, as the TTL does
not change“ thing, I think it might be worth to render the answer with a lower
TTL than there actually is and keep it longer (eg. if the answer would have 300
as TTL, render it with 290 and keep it rendered for 10s instead of one).
Currently, does any stub resolver keep a cache or something?

With regards

-- 
All flame and insults will go to /dev/null (if they fit)

Michal 'vorner' Vaner
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