Re: CakePHP 2.1.1 Performance

On Friday, 27 April 2012 16:48:53 UTC+2, Mika wrote:

Since we upgraded our web application to Cake 2.1.1 it has literally
killed our server several times. In WHM the "Server load (4 CPUs)"
under Service Status runs above 15 the entire time, and spikes up to
50 and as high as 70, at which point the server basically dies.

The same application under exactly the same load running on Cake
1.3.15 does not have near the same effect on the server. On 1.3.15 the
server load in WHM never exceeds 2.

It is exactly the same application.

Since 2.x is not backward compatible and quite different from 1.3; "exactly the same" isn't particularly meaningful - If the code was exactly-the-same it wouldn't work at all with 2.x.

 

The only changes we made were ones
required to make the application run on Cake 2.1.1.

So, not exactly the same :)

 

There is nothing
else running on the server. It's dedicated to just this one web
application.

We've swapped the code base back and forth (between 1.3.15 and 2.1.1)
a few times on the live server, and the results were the same every
time. On 1.3.15 the server hums, on 2.1.1 it dies.

Has anyone else had similar experiences?

You need to profile your app - or just use debug kit to identify what your app is doing.

Any issues of this kind are going to be in your app code, or in some way setup/config related. The cause, whatever it is, should be blindingly obvious (a loop of some kind; constant cache-misses or <insert other observed inefficiency>) by looking at what your code is actually doing

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