Hi,
I'm running and developing freeblog.hu which is Hungary's largest
blog hosting service. (~50k blogs, ~20k updates frequently). It's
developed in ASP.NET 2.0.
It has a templating system similar to MovableType but all content is
generated on-the-fly when requested (like in WordPress).
The whole sytem is running on a 2.0Ghz Xeon, 3Gb RAM + a separated DB
server. Memcached is running on a spare webserver and it has 1Gb RAM
allocated.
We have ~180-250 page impressions a day, but these are only the
content pages. So compared to "international" sites it's not so much,
but even here memcached can help a lot.
These hits put a moderate load onto my db server (but it's mitigated
by an in-memory entity cache), but interpreting the templates and
generating the pages took up a lot of CPU time.
So, i started to cache
- the compiled templates
- all of the content (with a 10-30-300 min timeout depending on the
content type)
All of these are stored in memcached, and I'm pretty impressed with
it. Before switching to memcached I used the file system for caching
the stuff, and the rough testing show ~200% percent improvement in
throughput (and ~800-900% compared to the "non-caching" version).
PLease note, these numbers are not "official" and very application
specific; when I have some free time I'll create some benchmarks, and
will post it.
I have to mention that I wrote a client for myself because I did not
like the currently available .NET version. I found it unnecessarily
complicated and parts of it show that it' was not developed for .net
but just ported from Java. (I can release it after I cleaned up the
code a little bit, and if there is demand.)
Just to sum up: I like memcached very much ;], and it helps a lot.
If you have specific questions, feel free to ask.
a.
On Jun 21, 2007, at 2:51 AM, KevinImNotSpacey wrote:
Yup, thanks mike, I couldn't agree more. Facebook is just
awesome. I only really asked about myspace because I know they are
a microsoft shop and therefore another website that is MS
technology based using memcache would help just as much. Thinking
on it now I should have posed the question: What MS Tech based
companies are using memcache?
I love memcached myself, it is so easy and powerful. And yes I
appreciate Steve's posts about Facebook and how they are using
memcached, the information is very helpful.
I've got the win32 binaries working with the .NET client tools from
the danga website. It all looks to work just as good as the *nix
versions, does anyone have any experiences to the contrary?
thanks again!
Kevin
On 6/20/07, mike <[EMAIL PROTECTED]> wrote:
On 6/20/07, KevinImNotSpacey <[EMAIL PROTECTED]> wrote:
> I recently joined a .NET shop and we're looking at large scale
websites on
> MS platforms and what technologies they're using to scale out their
> websites. Myspace was at the top of the list for .NET sites.
Any details
> are greatly appreciated.
myspace should not be used as a technical model for anything.
imho, with as much capital as they should be able to use, the
inconsistent and completely buggy interface is uncalled for -
especially going on for this many years.
facebook would be a much better model. not only is their site clean,
consistent, (and uses memcached i might add) but they expose APIs now
and seem to generally know their technical stuff. exposing APIs in my
mind is the next step when you have successfully been able to please
users with your frontend interface. (some people may disagree, saying
APIs are nice because other people can make their own interfaces and
you don't have to change yours)
to me myspace was built not to scale properly and ever since has been
struggling to do anything to support the load. i mean come on - it
started with coldfusion. did they really expect to be one of the
busiest sites on the net starting with that? :)
i really don't think they've put in enough funding or the proper
resources from what it seems like, unless they have a secret
completely rewritten version in the works.
not only does facebook use memcached, but steve is one of the most
active posters it seems and him/the team he works with has made
numerous improvements and i'm quite sure runs one of the largest (if
not the largest) memcached clusters anyone has ever claimed that i
have seen.
