----- Original Message -----
From: "Victor Duchovni" <[email protected]>
To: <[email protected]>
Sent: Friday, March 20, 2009 1:20 PM
Subject: Re: Performance tuning
On Fri, Mar 20, 2009 at 01:01:55PM -0400, Brandon Hilkert wrote:
I've been running everything from scripts, hoping to zero in on the
bottleneck.
How many messages are you sending in parallel in the injector scripts?
My local script on the postfix machine itself. It's just a single shell
script in a for loop.
Is there a better way to test?
SMTP is a high latency half-duplex protocol, and a single injector will
never stress the capacity of the Postfix SMTP server. On a low delay,
high bandwidth network link, you need around 10 parallel injectors to
before you get anywhere near peak server throughput.
--
Viktor.
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