[Glade-devel] libglade ideas

[todd]

This is a multi-part message in MIME format.
--------------030908070905070908060308
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Olexiy Avramchenko wrote:

> todd wrote:
>
>> just some ideas and something i'd like to help build and test to see 
>> whether or not it actually improves performance or not.  I mean maybe 
>> you're right maybe just compressing
>> the xml files yields sufficient amount of performance gain on the 
>> disk io side that it makes up for any extra overhead added for 
>> decompressing the files.  At any rate i think its
>> something interesting to think about.
>
>
> I've write a simple test case that uses glade_parser_parse_file() for 
> load xml. The test shows that performance penalty for compressed files 
> is less than 10% for fast machines (can't reach a slow box right now). 
> Gzipped files rule when they're stored on slow (flash, remote) drives 
> and when they're not cached in RAM (first application launch).
> Maybe I'll test this stuff with heavily optimized libraries (-O3, 
> -march=, etc...).
>
> I've attached the test case. It contain gzipped xml file (26266 lines, 
> 1027500 bytes). Files "p?-*" contain some results.
>
>    Olexiy

I ran this on my p4 and got these numbers:

plain text/xml is 7% faster, difference: 15ms (15069us)

doesn't this argue in favor of providing a binary format for libglade 
that would offer faster load times then compressed files and plain text 
files?

-todd

--------------030908070905070908060308
Content-Type: text/x-vcard; charset=utf8;
 name="taf2.vcf"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="taf2.vcf"

begin:vcard
fn:Todd Fisher
n:Fisher;Todd
email;internet:taf2@lehigh.edu
x-mozilla-html:FALSE
url:http://severna.homeip.net
version:2.1
end:vcard


--------------030908070905070908060308--