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From "J. Greenlees" <ja...@shaw.ca>
Subject Re: slow serving of large graphics
Date Fri, 23 Aug 2002 22:14:06 GMT
bill,
 it may actually be the amount of ram available isn't
sufficient for serving larger files, but a 100kb image is, in one sense, 
a very small image.

I have personally had images in excess of 100mb active in a graphics app.
and frequently run across images on websites of >5mb

bill wrote:

> I have more or less successfully built my first freeBSD system to be a 
> webserver (using the default install) and configured Apache for virtual hosts 
>and all seems well, except:
> 
> when it is serving a large (100k) graphic it is slower than mud going uphill.
> 
> hardware:
> 485-66, 32Mb ram
> The nic is an intel pro/10
> scsi disk subsystem with an adaptec 1542c (I think it is a c, not sure - but it 
> ran a complex database application before it was retired for a faster machine)
> 
> Top says:
>    load averages 0.00 0.01 0.00
>    top is using 0.93%
>    sendmail is using 0.00
>    httpd      is using 0.00 
> 
> watching top I see that httpd goes to RUN about once every 3 seconds.
> 
> 
> netstat shows a very large send q: 33580 until the browser apparently gives 
> up.
> when I reload the page the q goes up again and it _finishes_ displaying the 
> image.
> 
> I could use some help in figuring out what is so slow.
> 
> Also, may or may not be related: I have not configured Sendmail yet and it 
> gets unhappy and panics every morning when it can't deliver something.
> 
> it serves lots of small images and the httpd pages quite
>quickly, it seems only to be the large (>100k) images that slow down so 
>much.
>
>-bill
>
>
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