> Hi list > > Can anybody tell me what would be the typicall hardware > caracteristics for a > Web Server with Image Web Server (Corporate Edition) that would be able to > support efficiently something like 200 concurrent access. > > Or how should I calculate these caracteristics. > > thanks in advance. > > Nicolas
Hello Nicholas, I understand the US office has contacted you directly regarding your query, however for the benefit of other list members I will also reply here. We have recently created a paper titled "Accelerating WebGIS with Image Web Server" which is available for download from the ER Mapper website at http://www.ermapper.com/marktng/articles/pdf/Accelerating%20WebGIS%20with%20 Image%20Web%20Server.pdf. The paper aims to demonstrate the numerous advantages to utilising Image Web Server to accelerate a typical WebGIS/Map Server solution. Included in the paper are benchmark figures for a low-end system, using these results it is possible to extrapolate typical requirements for a range of situations. For example, using the normalised results the test system required approximately 16% of the test systems CPU resources to maintain a 1 second response time to 50 simultanoues clients (ie, 50 clients receiving 100% update of the view every second). Therefore, the same system could potentially achieve a 1 second response time with 200-250 simultaneous clients at 80% CPU (50 * 80 / 16 = 250). An equivalent system to this today from a Tier-1 manufacturer such as Dell is approximately US$1,850. Regards -- Simon ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^ Simon Cope, : e-mail: [EMAIL PROTECTED] Chief Technical Officer - : WWW: http://www.ermapper.com Internet Technologies, : Int'l Phone: +61 8 9388 2900 Earth Resource Mapping Pty Ltd, : Int'l Fax: +61 8 9388 2901 Level 2, 87 Colin St, West Perth. : Australia Phone: (08) 9388 2900 Western Australia 6005 : Australia Fax: (08) 9388 2901 Q: 1.2TB (1,200GB) Image over the Internet? A: Image Web Server! http://www.earthetc.com ----------------------------------------------------------- To make changes to your subscription, please visit our website, http://www.ermapper.com/technicl/ermapperl/index.htm
