Caching and concurrency?

[lekensteyn at gmail.com (Peter Wu)]

Hi,

I was wondering how well the caching mechanism of cgit works. Is it designed 
for concurrent access to the cache folders? I am tempted to use nginx cache 
mechanism, but a downside of that is that duplicate cache entries may occur 
(?id=d34db33f vs ?id=d34db33f000000 are possibly the same, but I guess nginx 
sees it as the same) and that entries are at least as old as the nginx cache 
expirity time.

Anyway, the questions:
- Is cgits cache immediately updated whenever the git tree is updated? If not, 
what delay can I expect?
- Is it better to use a dedicated caching proxy (nginx) instead of cgit when 
available?
- How well prepared is cgit for concurrent access?

Of course I should measure it myself too, but are there any obvious points I 
should take into account when considering a cache mechanism?

Regards,
Peter