nCache, Varnish Performance

[Kon Wilms]

My 2c to add - we run a CDN and serve all content for http through
nginx servers. I experimented with varnish as an upstream *and*
downstream cache to nginx for about a week on some test nodes when we
were experiencing high load (our http traffic is all media assets and
no html or video/audio) and noticed no measurable benefit (i.e.
numbers that would justify deploying it) despite tuning varnish in
various caching modes/rulesets. In fact in a few configurations I
noticed a performance hit on serving traffic.

HTH

Cheers
Kon

On 1/28/10, Jérôme Loyet <jerome at loyet.net> wrote:
> 2010/1/28 AMP Admin <admin at ampprod.com>:
>
> > Is xCache something different all together?  I know it's for caching php but
>  > is it recommended to use nCache, proxy_cache, or Varnish if you're already
>  > using xCahce?
>
>
> definitely ! xcache cache only PHP opcodes. PHP code is still executed
>  for each page. front end caches (proxy_pass, ncache, ...) makes
>  dynamic requests (php) into static ones (files). It's all different
>  and complementary.
>
>  ++ Jerome
>
>
>  >
>  > -----Original Message-----
>  > From: Piotr Sikora [mailto:piotr.sikora at frickle.com]
>  > Sent: Thursday, January 28, 2010 4:01 PM
>  > To: nginx at nginx.org
>  > Subject: Re: nCache, Varnish Performance
>  >
>  > Hi,
>  >
>  >> Is nCache and Varnish far better than proxy_cache?
>  >
>  > >From http://code.google.com/p/ncache/:
>  > "NCache is now in nginx core , you can use it as nginx proxy cache."
>  >
>  > I don't use Varnish, but I'm pretty sure it isn't _far_ better.
>  > But the answer really depends on your exact use-case.
>  >
>  > Best regards,
>  > Piotr Sikora < piotr.sikora at frickle.com >
>  >
>  >
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