[wp-hackers] Stress testing WordPress

Haluk Karamete halukkaramete at gmail.com
Tue Jun 19 22:55:35 UTC 2012

That's right Brian. A $10K server does not give much info.

A more detailed server info is below.

We got two servers that are identical.
one for web server(  IIS ) and the other for database (SQL)
They both are
DELL PowerEdge R710 with x64-based PC,
Intel(R) Xeon(R) CPU, X5650  @ 2.67GHz, 2660 Mhz,
6 Core(s) With a Physical Memory (RAM) 32.0 GB

They are not shared neither. They are on our rack and They are
connected to the backbone directly cause they are hosted on a pretty
good data center.

On Tue, Jun 19, 2012 at 3:21 PM, Brian Layman
<wp-hackers at thecodecave.com> wrote:
> Random ramblings inspired by your question:
> Generally speaking, the numbers you are quoting don't sound like a huge
> problem and of course that all depends upon what all the server is doing and
> how you've configured it and the network connecting it to the Internet
> backbone.  The price of the server doesn't tell us much since a $10K server
> bought last month would work better than a $10K server bought 4 years ago.
>  Regardless of your hardware, you can do a lot of things to take the
> greatest advantage of what you have.
> You'll want to watch for the bottlenecks in your system on an on-going
> basis.  Make sure you have a gigabit network card so that you can feed data
> out of the machine fast enough. Make sure that you have a persistent cache
> installed so that your CPU is not taxed (on Windows consider Couchbase - a
> drop in memcache replacement
> http://www.couchbase.com/couchbase-server/overview). This means doing object
> caching, page caching and even manual piecemeal caching of appropriate
> sections of your theme.  Look at what you can do do reduce the load on hard
> drives and network created by static files (use a CDN - amazon or even
> Cloudflare maybe).  The biggest thing you need to watch for is your plugins
> causing writes to the database or file system upon page load. Avoid that at
> all costs as writing creates a change in the physical world and between that
> and file system locks, that is where your load time will be spent.
> Also you've said that you are locked into IIS.  I wouldn't look at this
> right way, but you may not be as locked in as you think.  You may have ASP
> requirements outside of WordPress, but that doesn't mean you can't serve the
> WordPress site (and all static files) via NginX and send all remaining
> traffic over to an instance IIS that is running on the same server but
> listening from a different port.  After all, if you've ever installed Nginx
> with fastcgi, that's all you're doing with your PHP traffic. You are just
> proxying it to a different server running on the same machine.  I imagine
> nginx could send all traffic for the IIS sites over to IIS running on port
> 8080 and if Nginx is more efficient on that machine than IIS, that may be
> something you want to consider eventually.  (And if you ever want to just
> play with Nginx on a windows system, here is a maintained binary install for
> local Nginx dev testing.. http://winginx.com/
> Brian Layman
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