Re: gitweb.cgi

> Kay Sievers wrote:
> 
>>
>>> Most of the hits we get are either the gitweb front page or the 
>>> gitweb rss feeds, and it's eating I/O bandwidth like crazy.
>>
>>
>> I tested some stuff on these boxes and 30 stat() calls alone take app. 
>> 2 seconds
>> on these boxes cause of I/O load ... :)
>>
> 
> Welcome to my hell :)
> 
> I set up mod_cache (which I didn't know about, silly me) and so far it 
> seems to work and has produced a tremendous decrease in load and 
> improvement in response time.  I do, have, however, a request.  There 
> are some gitweb pages which are more likely to change than others; in 
> particular, some gitweb pages will *never* change (because they directly 
> reflect immutable git data.)
> 
> If gitweb could produce Last-Modified and Expires headers where 
> appropriate, it should improve caching performance.
> 
>     -hpa