Hi, I'm trying to optimize speed by using mod_deflate on a particular personal server. It runs Apache httpd 2.0.52+ and PHP Version 5.1.6, with eaccellerator 0.9.5, on CentOS 4.5 with Linux 2.6.9-023stab033.6 SMP kernel. It serves 5 websites, combined they get about 1 real human to visit each second in total (excluding redirected hits, blocked spammers/IPs/robots/spiders). One of the sites is behind SSL, for squirrelmail webmail. Most filetypes it serves are php (flatfile non-mysql weblogs), a few text and .htm* files, very small cgi-scripts here and there and a couple of imagefiles, avi's and mp3's, but not very much. (Bandwidth/traffic are no problem factors for this server, it runs with a 100 mbit NIC to the net, and I can use it wide-open.) Currently it uses about 220 MB of DDR3, and I have at least another 128 MB of RAM left, the Quad Core CPU also has room left.
From the current httpd.conf :
# gzip for mod_deflate: #<Location /> SetOutputFilter DEFLATE BrowserMatch ^Mozilla/4 gzip-only-text/html BrowserMatch ^Mozilla/4\.0[678] no-gzip BrowserMatch \bMSIE !no-gzip !gzip-only-text/html SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png|wav|mp3|ogg|bmp|avi|mpg)$ no-gzip dont-vary Header append Vary User-Agent env=!dont-vary DeflateCompressionLevel 5 DeflateMemLevel 9 DeflateWindowSize 14 #</Location> #AddOutputFilterByType DEFLATE text/html text/plain text/xml When I uncomment the Location tags, Apache won't start. Haven't figured out why, but doesn't seem to matter, since I'm running it for all the sites anyway. Does it also work for the SSL content ? This httpd.conf has had a pretty long life, so I forgot much of what I've changed over the years. But I was wondering how I could better load speeds for php webpages using mod_deflate, and also, handy pointers on how to best measure this perhaps, although I don't have very much time to spend on that. If any of you sees really strange or bad general config values, please say so. Here are some other more or less crucial values from the same conf: Timeout 180 KeepAlive On MaxKeepAliveRequests 80 KeepAliveTimeout 20 <IfModule prefork.c> StartServers 9 MinSpareServers 6 MaxSpareServers 18 ServerLimit 250 MaxClients 250 MaxRequestsPerChild 0 </IfModule> <IfModule worker.c> StartServers 4 MaxClients 132 MinSpareThreads 18 MaxSpareThreads 70 ThreadsPerChild 24 MaxRequestsPerChild 0 </IfModule> LoadModule access_module modules/mod_access.so LoadModule auth_module modules/mod_auth.so LoadModule auth_anon_module modules/mod_auth_anon.so LoadModule auth_dbm_module modules/mod_auth_dbm.so LoadModule auth_digest_module modules/mod_auth_digest.so LoadModule ldap_module modules/mod_ldap.so #LoadModule auth_ldap_module modules/mod_auth_ldap.so #LoadModule include_module modules/mod_include.so LoadModule log_config_module modules/mod_log_config.so LoadModule env_module modules/mod_env.so LoadModule mime_magic_module modules/mod_mime_magic.so #LoadModule cern_meta_module modules/mod_cern_meta.so LoadModule expires_module modules/mod_expires.so LoadModule deflate_module modules/mod_deflate.so LoadModule headers_module modules/mod_headers.so #LoadModule usertrack_module modules/mod_usertrack.so LoadModule setenvif_module modules/mod_setenvif.so LoadModule mime_module modules/mod_mime.so #LoadModule dav_module modules/mod_dav.so #LoadModule status_module modules/mod_status.so LoadModule autoindex_module modules/mod_autoindex.so LoadModule asis_module modules/mod_asis.so #LoadModule info_module modules/mod_info.so #LoadModule dav_fs_module modules/mod_dav_fs.so LoadModule vhost_alias_module modules/mod_vhost_alias.so LoadModule negotiation_module modules/mod_negotiation.so LoadModule dir_module modules/mod_dir.so LoadModule imap_module modules/mod_imap.so LoadModule actions_module modules/mod_actions.so LoadModule speling_module modules/mod_speling.so CheckSpelling on #LoadModule userdir_module modules/mod_userdir.so LoadModule alias_module modules/mod_alias.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule cache_module modules/mod_cache.so LoadModule suexec_module modules/mod_suexec.so LoadModule disk_cache_module modules/mod_disk_cache.so LoadModule file_cache_module modules/mod_file_cache.so LoadModule mem_cache_module modules/mod_mem_cache.so LoadModule cgi_module modules/mod_cgi.so # added april 2007: LoadFile /usr/lib/libxml2.so LoadModule unique_id_module modules/mod_unique_id.so LoadModule security2_module modules/mod_security2.so #LoadModule evasive20_module modules/mod_evasive20.so Those last ones I'm still experimenting with. For now I use mod_security with only very basic defaults. This server doesn't really suffer from DDoS attacks often. Any advice or improvements highly appreciated! Regards, Julius --------------------------------------------------------------------- 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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