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<DIV dir=ltr align=left><SPAN class=849043014-12122008><FONT face=Arial
color=#0000ff size=2>Hi,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=849043014-12122008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=849043014-12122008><FONT face=Arial
color=#0000ff size=2>Are there any effective tricks for making
MapServer to Top-Fuel class? We have now a typical ms4w installation
on a rather good server platform with SCSI drives and 2 four-core
processors running on Windows 2003 server. Our images are tiled,
uncompressed geotiffs with overviews, vector sample data set is shapefile with
shptree index. I have a shortened epsg file and my mapfile is extra short.
Bandwith is not the limit. We are getting out now about 450 orthoimage pictures
per minute (size 500 by 500 pixels) and 550 pictures from the vector layer
in png24 image format. I consider that rather good, but we are required to
reach 20 images per second, thus 1200 images per minute or 0.05 seconds per
image. I wonder if anybody has tuned MapServer that
far.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=849043014-12122008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=849043014-12122008><FONT face=Arial
color=#0000ff size=2>I am willing to try however exotic solutions to reach the
20 WMS output images/second goal if somebody could suggest me what to try
next. In our system there seems to be about 0.1 second ballast with WMS
getMap requests and I cannot get any faster response even if I try with on empty
data layer with nothing to render. Have anybody tried to keep
mapfile, epsg-file or even tileindex files in RAM drive?
</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=849043014-12122008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT color=#0000ff size=2><SPAN
class=849043014-12122008>Having about 20 parallel users seems to be optimal
for our server and if I drive just WMS getCapabilities request against my
mapfile I can get about 1300 responses per minute. That leads me to think
that 1200 rendered images per minute might be possible to reach with optimal
set-up.</SPAN></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT color=#0000ff size=2><SPAN
class=849043014-12122008></SPAN></FONT></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT color=#0000ff size=2><SPAN
class=849043014-12122008>-Jukka
Rahkonen-</SPAN></FONT></FONT></DIV></BODY></HTML>