Re: Postfix and multi-core platforms

2011-01-19 Thread Jaques Cochet
Thanks Stan On Mon, Jan 17, 2011 at 11:20 PM, Stan Hoeppner wrote: > Jaques Cochet put forth on 1/17/2011 12:18 AM: >> If postfix alone is running on the server, let's say as a mail router >> or backend delivey system, would postfix processes make use of all >> cores? would I be left with cores d

Re: Postfix and multi-core platforms

2011-01-17 Thread Stan Hoeppner
Jaques Cochet put forth on 1/17/2011 12:18 AM: > If postfix alone is running on the server, let's say as a mail router > or backend delivey system, would postfix processes make use of all > cores? would I be left with cores doing nothing even If I have an > important number of emails to process? I

Re: Postfix and multi-core platforms

2011-01-17 Thread Jeroen Geilman
On 1/17/11 7:18 AM, Jaques Cochet wrote: If postfix alone is running on the server, let's say as a mail router or backend delivey system, would postfix processes make use of all cores? That's a loaded question, since "postfix" is not a process that consumes CPU. In one (1) postfix instance,

Re: Postfix and multi-core platforms

2011-01-16 Thread Victor Duchovni
On Mon, Jan 17, 2011 at 08:18:57AM +0200, Jaques Cochet wrote: > If postfix alone is running on the server, let's say as a mail router > or backend delivey system, would postfix processes make use of all > cores? would I be left with cores doing nothing even If I have an > important number of emai

Re: Postfix and multi-core platforms

2011-01-16 Thread Jaques Cochet
If postfix alone is running on the server, let's say as a mail router or backend delivey system, would postfix processes make use of all cores? would I be left with cores doing nothing even If I have an important number of emails to process? On Mon, Jan 17, 2011 at 7:02 AM, Victor Duchovni wrote:

Re: Postfix and multi-core platforms

2011-01-16 Thread Victor Duchovni
On Mon, Jan 17, 2011 at 06:55:39AM +0200, Jaques Cochet wrote: > Does increasing the number of cores on the same hardware platform add > performance to a Postfix system or it is better to run several Postfix > systems on different machines? Yes, but only if the CPU is the bottleneck. Typically th

Postfix and multi-core platforms

2011-01-16 Thread Jaques Cochet
Hi Does increasing the number of cores on the same hardware platform add performance to a Postfix system or it is better to run several Postfix systems on different machines? If the second choice is better, is it logical to run Postfix on different VMs (using ESX for example), let's say on somethi