Linus Torvalds wrote:
quoted text
> 
> On Thu, 7 Dec 2006, H. Peter Anvin wrote:
>> That all being said, the lack of intrinsic caching in gitweb continues to be a
>> major problem for us.  Under high load, it makes all the problems worse.
> 
> I really don't see what gitweb could do that would be somehow better than 
> apache doing the caching in front of it.. Is there some apache reason why 
> that isn't sufficient (ie limitations on its cache size or timeouts?)
> 

What it could do better is it could prevent multiple identical queries 
from being launched in parallel.  That's the real problem we see; under 
high load, Apache times out so the git query never gets into the cache; 
but in the meantime, the common queries might easily have been launched 
20 times in parallel.  Unfortunately, the most common queries are also 
extremely expensive.

	-hpa
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