On Sat, 28 Nov 1998, Ralf S. Engelschall wrote:
> > Im wondering how badly mod_perl will fragment up writes without writev
> > support..
>
> Don't know, I've never did any performance tests.
>
> > Maby Ill have to run two servers for now.. one with ssl and no writev, and
> > one without ssl with writev... as most of the work is done without SSL..
>
> Hmmmm.... I would first check whether the not used writev() is really a
> network performance problem. Usually Apache's performance penalties exists at
> other corners, AFAIK.
I will try and do some testing..
The fear is that each write calles generates a TCP packet.. which is very
bad indeed as the overheads for TCP are quite large.. For users on slow
links (which is a fact of life here in Australia), it can be disastrous..
---
Anthony Rumble
EMUSYS Unix Consulting Phone: 0500 500 EMU
Direct 02-9798-7604 Mobile 0412-955-042 Fax 02 9798 2854
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