[Mono-bugs] [Bug 574597] [Regression?] poor compression in mono 2.6 with System.IO.Compression.GZipStream

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http://bugzilla.novell.com/show_bug.cgi?id=574597

http://bugzilla.novell.com/show_bug.cgi?id=574597#c1


Gonzalo Paniagua Javier <gonzalo at novell.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #1 from Gonzalo Paniagua Javier <gonzalo at novell.com> 2010-02-01 21:36:43 UTC ---
Simple test case:
----------------
using System;
using System.IO;
using System.IO.Compression;

class Test {
    static void Main ()
    {
        File.Delete ("test.gz");
        using (GZipStream stream = new GZipStream (File.OpenWrite ("test.gz"),
CompressionMode.Compress)) {
            for (int i = 0; i < 1024; i++)
                stream.WriteByte ((byte) 'a');
        }
    }
}

------------

The output generated is about 7kB with 2.6.1 and 29 or 30 bytes with 2.4 or
current trunk.

The patch was applied in r150349 (trunk), r150350 (mono-2-6) and r150351
(mono-2-4).

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