Re: Expected haproxy performance inside a VMWare instance

From: Patrick Viet <>
Date: Mon, 14 Jul 2008 16:08:52 +0200

On Mon, Jul 14, 2008 at 3:59 PM, lists <> wrote:

> Is this an expected result? same test results on 64bit and 32bit
> VMs/hardware
> Any performance advise on VM platform?

Most of the job of a load balancer is done on the network and the system. All the network job is rewritten by virtualization, so is most of the system work (ie. syscall interception = double execution : catch/rewrite, execute + other network overhead). Therefore it is perfectly normal that your performance in a VM is bad.

I advise that you don't use haproxy (or any load balancer) in a VM if you need any high performance.
This can't be helped, it's about how a VM works.

Patrick Received on 2008/07/14 16:08

This archive was generated by hypermail 2.2.0 : 2008/07/14 16:15 CEST