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Apache bandwidth tuning in default config
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Apache bandwidth tuning in default config
by To+
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I've been playing recently with some firefox extensions for web developers: FireBug: https://addons.mozilla.org/es-ES/firefox/addon/1843 PageSpeed: http://code.google.com/intl/es-ES/speed/page-speed/index.html YSlow: http://developer.yahoo.com/yslow/ and found that enabling certain options in the koha's apache VirtualHosts configuration would improve a lot koha's performance in bandwidth use. Only the opac startup page bandwidht usage goes from 368.5K to 118.3K. Enable http compression using mod_deflate --------------------------------------------------------------- Document this command for enabling this in Debian/Ubuntu # a2enmod deflate and add this lines to koha-http.conf in both VirtualHost definitions SetOutputFilter DEFLATE SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip I specify not to apply useless compression to compresed images. Further options could be used. See http://httpd.apache.org/docs/2.0/mod/mod_deflate.html Enable better caching features by setting explicit expiration far in the future for static content using mod_deflate ---------------------------------------------------------------------------------------------------------------------------------------------------------------- Document this command for enabling this in Debian/Ubuntu # a2enmod expires and add this lines to koha-http.conf in both VirtualHost definitions ExpiresActive On ExpiresDefault "modification plus 1 year" as mod_expires only applies to files in the filesystem it is safe to rely on modification date. This could be fine-tuned, for example on a per filetype basis (see http://httpd.apache.org/docs/2.0/mod/mod_expires.html). ----- PageSpeed in particular offers some recommendation on image sizes and provides an optimal image file for substitution. This could be analised. To+. -- Aparición con vida de Jorge Julio López. _______________________________________________ Koha mailing list Koha@... http://lists.katipo.co.nz/mailman/listinfo/koha |
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Re: Apache bandwidth tuning in default config
by Pablo A. Bianchi
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Does any koha developer interested in add this setup to koha default
installation? If not, why not? 2009/7/2 Tomás <tomascohen@...> > > I've been playing recently with some firefox extensions for web developers: > > FireBug: https://addons.mozilla.org/es-ES/firefox/addon/1843 > PageSpeed: http://code.google.com/intl/es-ES/speed/page-speed/index.html > YSlow: http://developer.yahoo.com/yslow/ > > and found that enabling certain options in the koha's apache VirtualHosts configuration would improve a lot koha's performance in bandwidth use. Only the opac startup page bandwidht usage goes from 368.5K to 118.3K. > [snip] _______________________________________________ Koha mailing list Koha@... http://lists.katipo.co.nz/mailman/listinfo/koha |
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Re: Apache bandwidth tuning in default config
by Chris Cormack-6
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2009/8/17 Pablo A. Bianchi <pbianchi@...>:
> Does any koha developer interested in add this setup to koha default > installation? If not, why not? I'm sure they are, but I'm sure they are also busy. But the beauty of a FLOSS project is that anyone can send a patch :) Consider that a challenge :-) Chris > > 2009/7/2 Tomás <tomascohen@...> >> >> I've been playing recently with some firefox extensions for web developers: >> >> FireBug: https://addons.mozilla.org/es-ES/firefox/addon/1843 >> PageSpeed: http://code.google.com/intl/es-ES/speed/page-speed/index.html >> YSlow: http://developer.yahoo.com/yslow/ >> >> and found that enabling certain options in the koha's apache VirtualHosts configuration would improve a lot koha's performance in bandwidth use. Only the opac startup page bandwidht usage goes from 368.5K to 118.3K. >> [snip] > _______________________________________________ > Koha mailing list > Koha@... > http://lists.katipo.co.nz/mailman/listinfo/koha > Koha mailing list Koha@... http://lists.katipo.co.nz/mailman/listinfo/koha |
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Re: Apache bandwidth tuning in default config
by Pablo A. Bianchi
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2009/8/16 Chris Cormack <chris@...>
> > I'm sure they are, but I'm sure they are also busy. > > But the beauty of a FLOSS project is that anyone can send a patch :) Thanks for your answer Chris. I'm aware of that aspect of FLOSS projects. I also know that for a experienced developer this changes take only 5 minutes and for me much more (never used GIT yet :$). The purpose also was to know if someone think there is not a good idea to made those changes, because is strange that being so simple nobody say something about before. Furthermore, this simples changes seems to be a very interesting improve with an small effort, I was surprise no one responds (perhaps it was a good reason). > Consider that a challenge :-) OK, despite the above, I will consider the challenge :-) _______________________________________________ Koha mailing list Koha@... http://lists.katipo.co.nz/mailman/listinfo/koha |
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Re: Apache bandwidth tuning in default config
by Galen Charlton-2
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Hi,
On Mon, Aug 17, 2009 at 4:05 AM, MJ Ray<mjr@...> wrote: > deflate - I think enabling this would mean that we end support for > Apache 1.3. Is that OK? Possibly. I think it's OK to require Apache 2 for users who have sufficient control of their server, but for those needing to install in single mode, I wonder if there are many web hosting providers left who only run 1.3. > I think we should put deflate and expires into the default config > file, but commented out with notes that the deflate is only for > Apache httpd 2.x and that expires should only be enabled once > you're finished messing with CSS and images. > > Does that sound right? That sounds good to me. Regards, Galen -- Galen Charlton gmcharlt@... _______________________________________________ Koha mailing list Koha@... http://lists.katipo.co.nz/mailman/listinfo/koha |
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Re: Apache bandwidth tuning in default config
by Pablo A. Bianchi
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On Mon, Aug 17, 2009 at 7:40 AM, Galen Charlton <gmcharlt@...> wrote:
> On Mon, Aug 17, 2009 at 4:05 AM, MJ Ray<mjr@...> wrote: >> I think we should put deflate and expires into the default config >> file, but commented out with notes that the deflate is only for >> Apache httpd 2.x and that expires should only be enabled once >> you're finished messing with CSS and images. >> >> Does that sound right? > > That sounds good to me. Sounds good to me too! Another possibility for deflate is to ask on installation script which version of Apache is being used (or autodetect it?). Regards, Pablo _______________________________________________ Koha mailing list Koha@... http://lists.katipo.co.nz/mailman/listinfo/koha |
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Re: Apache bandwidth tuning in default config
by Pablo A. Bianchi
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On Mon, Aug 17, 2009 at 8:41 AM, MJ Ray <mjr@...> wrote:
> > I suspect there may be some education-sector users who have still not > upgraded to 2.x and need time to update their policy, but I hope that > they'll reply to this email and let us know! This configuration on Koha's apache virtualhost setup could work for Apache 2.x (deflate) and 1.x (gzip)? <IfModule mod_gzip.c> mod_gzip_on yes mod_gzip_dechunk yes mod_gzip_keep_workfiles No mod_gzip_can_negotiate yes mod_gzip_update_static No mod_gzip_temp_dir /tmp mod_gzip_minimum_file_size 512 mod_gzip_maximum_file_size 1000000 mod_gzip_maximum_inmem_size 1000000 mod_gzip_handle_methods GET POST mod_gzip_item_exclude reqheader "User-Agent: .*Mozilla/4\..*\[" mod_gzip_item_exclude mime ^image/.* mod_gzip_item_exclude rspheader Content-Type:image/* mod_gzip_item_include file \.js$ mod_gzip_item_include mime ^application/x-javascript$ mod_gzip_item_include file \.php$ mod_gzip_item_include mime ^text/html$ mod_gzip_item_include file \.css$ mod_gzip_item_include mime ^text/css$ </IfModule> <IfModule mod_deflate.c> # Compress content with type html, text, and css, ... AddOutputFilterByType DEFLATE text/plain text/html text/xml text/css AddOutputFilterByType DEFLATE application/xml application/xhtml+xml application/rss+xml application/javascript application/x-javascript DeflateCompressionLevel 9 # Properly handle old browsers that do not support compression BrowserMatch ^Mozilla/4 gzip-only-text/html BrowserMatch ^Mozilla/4\.0[678] no-gzip BrowserMatch \bMSIE !no-gzip !gzip-only-text/html DeflateFilterNote Input instream DeflateFilterNote Output outstream DeflateFilterNote Ratio ratio LogFormat '"%r" %{outstream}n/%{instream}n (%{ratio}n%%)' deflate <IfModule mod_headers.c> #properly handle requests coming from behind proxies Header append Vary User-Agent </IfModule> </IfModule> _______________________________________________ Koha mailing list Koha@... http://lists.katipo.co.nz/mailman/listinfo/koha |
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Re: Apache bandwidth tuning in default config
by Galen Charlton-2
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Hi Pablo,
On Thu, Aug 20, 2009 at 5:46 PM, Pablo A. Bianchi<pbianchi@...> wrote: > This configuration on Koha's apache virtualhost setup could work for > Apache 2.x (deflate) and 1.x (gzip)? Looks good to me - could you submit as a Git patch against HEAD, or if you're not set up to do that, let me know and I'll do it. I can test against Apache 2; if anybody's willing to test for Apache 1.3, please speak up. Regards, Galen -- Galen Charlton gmcharlt@... _______________________________________________ Koha mailing list Koha@... http://lists.katipo.co.nz/mailman/listinfo/koha |
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