Give http://drupal.org/project/authcache a try. There's a D7 release for it too,

Rgrds,
Henry

On Thu, Jan 17, 2013 at 7:24 AM, Keith Roberts <keith@karsites.net> wrote:
On Wed, 16 Jan 2013, Ms. Nancy Wichmann wrote:

> To: "support@drupal.org" <support@drupal.org>
> From: Ms. Nancy Wichmann <nan_wich@bellsouth.net>
> Subject: Re: [support] increase performance on any internal only site
>
> I've had the best luck with an opcode cache, like eAccelerator.

Has anybody tried IonCube PHP encoder with Drupal please?

It's not free, but it does increase performance.

Kind Regards,

Keith
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