On Mon, Nov 26, 2007 at 08:25:40AM -0500, Grant Peel wrote: > I have a client for whom I have added about 500 301 redirects in thier > VirtualHost container. The server has about 200 VirtualHosts total. > > What kind of performance issues would one think all those redirects have on > the whole (Apache) server? apache bench (ab) would tell you. Otherwise: Think about what is happening on the network level and within your server. For every request, the processing process/thread iterates over up to 500 rules. Sometimes it issues a redirect status code back to the client who in turn issues a new request. It is fairly easy to show, that the redirect itself is expensive when compared to the 500 rules. At least for the individual client. It's a bit different for the server. It is also fairly simple to understand, that you can optimise the order of the rules. Ideally, you decide on the first line, that either _no_ rule will apply or _one of those 500 rules_ will apply. That way you can branch and do not affect the server very much and do not have requests, that run over 500 rules and not a single one applies. In the end it boils down to testing in the real world with your real application. As a sidenote: If you run ssl, then rewrite rules hardly matter at all, as the ssl-handshake takes ages compared to a rewrite rule. just my 2 cents, Christian --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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