On Fri, Mar 20, 2009 at 01:32:26PM -0400, Brandon Hilkert wrote:
>
> ----- 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?
Yes, of course. Run multiple copies of your script if it
generates particularly representative (of your intended work-load)
content. Otherwise use smtp-source(1) with a suitable number of parallel
streams.
Measurements of single-stream performance just measure single transaction
latency on a lightly loaded server, not peak server throughput.
--
Viktor.
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