- From: N.G.Smith <ngs@sesame.hensa.ac.uk>
- Date: Thu, 06 Jul 1995 09:46:33 +0000
- To: www-proxy@www10.w3.org
> we used since may the cern httpd 3.0 for caching (with about 20 > accesses at the same time). in this month we want to expand our > service to 300-400 accesses. > > does someone know how many performance one process of the cern httdp needs? > has anyone expirience which machine we should use (buy) or should > we use 2-4 server? > > R. Waldhofer We experience >330,000 hits a day, with up to 20 requests per second and at the moment we have about 680 concurrent users. This runs on a dual processor SGI Challenge DM with the disks set up to provide a sustained 20Mb/s. However, the big difference between us and you is that we are running the Netscape Proxy Server. I don't know if Netscape have measured, (cue Ari...), but I would guess that the process model means that the Netscape Proxy is at least twice as (CPU) efficient as the CERN server. However, having said that our two CPUs do seem to spend a lot of their time idle so such a machine might suit your requirements. We shall soon be deploying 5 more machines to improve the national caching service in the UK. At that point we should have plenty more opportunity for experimentation and analysis of performance. I suggest that you invest some of the money you have to provide servers in software licences. Neil G. Smith HENSA Unix The University of Kent England
Received on Thursday, 6 July 1995 05:47:26 UTC