MapServer performance

[antti siukola]

Hi!

Thanks for the reply!

My tiff's are from 15M to 10G tiff tiles (about 500M each tile) and
depending on the map theres the one 15M tiff or from 2 to 3 of the
500M tiles displayed (I have couple of map apps running on the
server). It doesn't seem to matter how big the tiff's are since the
performance is the quite the same. I also have the .shx files for my
shape's.

The server doesn't get very much hit's since it's not an open for
public application. I believe the average usage is about 1-10 users at
the same time.

Hope this helps!

Antti S

On 3/21/07, Romolo Manfredini <romoloman at hotmail.com> wrote:
> From: "antti siukola" :
>
> > Oh, yes. I'm on linux with mapserver 4.8.4 and php mapscript. The
> > server is quite new and powerful with dual xeon and 1024M of memory.
> > Data sources are mostly SHP-files and few TABs for vector data and
> > labels. The actual maps are .tif images. I'm using tiled tiff's and
> > low-res images on upper scales.
> >
>
> SHP and tiff files are typically bad beast to manage expecially if they are
> big shape and big tiff, also dependig on file system type you may have some
> performance issues related to locking and caching. (1 GB ram with large
> files is not so much)
> Also, do you have spatial index on your files (.shx) ?
> Spatial index improve performances a lot.
> May you tell me the size of your files and how many of them are involved in
> a single map ?
>
> Best Regards,
> Romolo
>
>