Changes between Version 3 and Version 4 of FileCompression


Ignore:
Timestamp:
Sep 20, 2007, 12:13:29 PM (17 years ago)
Author:
Nicolas
Comment:

Clarified compatibility with older clients. Removed "average compression ratio"; that depends on the data. Better link to infozip website. Tagged page.

Legend:

Unmodified
Added
Removed
Modified
  • FileCompression

    v3 v4  
    1212
    1313    * Use the Apache 2.0 mod_deflate module to automatically compress files on the fly. This method will work with all BOINC clients, but it will do compression only for 5.4+ clients. Info on how to configure this is below.
    14     * Compress files and give them a filename suffix such as '.gz'. The name used in your `<file_info>` elements, however, is the original filename without '.gz'.
     14    * Compress files and give them a filename suffix such as '.gz'. The name used in your `<file_info>` elements, however, is the original filename without '.gz'. BOINC clients older than 5.4 won't be able to download files.
    1515
    1616Include the following line in `httpd.conf`:
     
    4545is actually quite small so we are compressing most of the files
    4646downloaded from our servers.
    47 The average file is about 60% of the original file size.
    4847Adding the compression on the fly only added about 5%
    4948to the system CPU utilization (obviously it will vary
     
    9493You can also do compression in your application.
    9594To assist this, BOINC provides a library
    96 boinc_zip, based on the "Info-Zip" libraries, but combines both zip & unzip
    97 functionality in one library.  (http://www.info-zip.org).
     95boinc_zip, based on the [http://www.info-zip.org Info-Zip] libraries, but combines both zip & unzip
     96functionality in one library.
    9897Any questions/comments please email carlc@comlab.ox.ac.uk
    9998