Re: [squid-users] Max Object Size and Download Speeds

On Fri, 2006-11-03 at 10:00 +0100, Matus UHLAR - fantomas wrote:
> On 03.11.06 10:17, Ow Mun Heng wrote:
> > When setting Max Object size to it's default 4MB, I get good browsing
> > and download speeds (large files).
> > When I increase the Size to say 50MB (so that more BIG files gets
> > cached), I noticed that the download speeds becomes slower. (~ 1/2)
>
> probably because more files get cached, which leads to higher cache load.

Initially I thought iwas due to the HD, but looking at iostat
numbers,..it doesn;t seem so.

avg-cpu: %user %nice %sys %iowait %idle
          12.50 0.00 32.50 5.25 49.75

Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
hda 15.08 40.20 251.26 80 500
hda1 0.00 0.00 0.00 0 0
hda2 0.00 0.00 0.00 0 0
hda3 70.35 40.20 251.26 80 500
>
> > or do you guys think it's only due to the Speed of the Hardware? BTW, this
> > is a white box server on a 7200 RPM IDE disk serving ~300 users.
>
> see FAQ on squid performance tuning.
Received on Fri Nov 03 2006 - 06:11:28 MST