99 lines
2.1 KiB
HTML
99 lines
2.1 KiB
HTML
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
|
||
|
|
<HTML>
|
||
|
|
<HEAD>
|
||
|
|
<META http-equiv="Content-Type" content="text/html; charset=Windows-1252">
|
||
|
|
<TITLE>Performance</TITLE>
|
||
|
|
<LINK href="style.css" rel="stylesheet" type="text/css">
|
||
|
|
</HEAD>
|
||
|
|
|
||
|
|
<BODY>
|
||
|
|
|
||
|
|
<H1>Performance</H1>
|
||
|
|
|
||
|
|
<H4>ZIP Format</H4>
|
||
|
|
<P>Compression ratio results are very dependent upon the data used for
|
||
|
|
the tests. We compared 7-Zip with some of the leading
|
||
|
|
commercial archivers: PKZIP 2.04g, WinZip 7.0.</P>
|
||
|
|
|
||
|
|
<P>FILE SET: The Canterbury Corpus (11 files totaling 2,810,784 bytes,
|
||
|
|
popular file set used to compression rates).</P>
|
||
|
|
|
||
|
|
<TABLE>
|
||
|
|
<TR>
|
||
|
|
<TH>Archiver</TH>
|
||
|
|
<TH>Compressed size</TH>
|
||
|
|
<TH>Ratio</TH>
|
||
|
|
</TR>
|
||
|
|
<TR>
|
||
|
|
<TD><B>7-Zip (zip format)</B></TD>
|
||
|
|
<TD><B>676284</B></TD>
|
||
|
|
<TD><B>100%</B></TD>
|
||
|
|
</TR>
|
||
|
|
<TR>
|
||
|
|
<TD>PKZIP 2.04g -ex</TD>
|
||
|
|
<TD>726047</TD>
|
||
|
|
<TD>107%</TD>
|
||
|
|
</TR>
|
||
|
|
<TR>
|
||
|
|
<TD>WinZip 7.0 (Max)</TD>
|
||
|
|
<TD>731499</TD>
|
||
|
|
<TD>108%</TD>
|
||
|
|
</TR>
|
||
|
|
</TABLE>
|
||
|
|
|
||
|
|
|
||
|
|
<H4>7z Format</H4>
|
||
|
|
|
||
|
|
<P>7z is the new archive format, providing a high compression ratio.</P>
|
||
|
|
|
||
|
|
<P>FILE SET: The GIMP 1.2.4 for Windows after full installation
|
||
|
|
(127 subfolders, 1304 files totaling 27,128,826 bytes).
|
||
|
|
The GIMP is the GNU Image Manipulation Program. It can be downloaded from
|
||
|
|
www.gimp.org.</P>
|
||
|
|
|
||
|
|
<TABLE>
|
||
|
|
<TR>
|
||
|
|
<TH>Archiver</TH>
|
||
|
|
<TH>Compressed size</TH>
|
||
|
|
<TH>Ratio</TH>
|
||
|
|
</TR>
|
||
|
|
<TR>
|
||
|
|
<TD><B>7-Zip (7z format)</B></TD>
|
||
|
|
<TD><B>5445402</B></TD>
|
||
|
|
<TD><B>100%</B></TD>
|
||
|
|
</TR>
|
||
|
|
<TR>
|
||
|
|
<TD>WinRAR 3.10</TD>
|
||
|
|
<TD>6004155</TD>
|
||
|
|
<TD>110%</TD>
|
||
|
|
</TR>
|
||
|
|
<TR>
|
||
|
|
<TD>WinAce 2.3</TD>
|
||
|
|
<TD>6242424</TD>
|
||
|
|
<TD>115%</TD>
|
||
|
|
</TR>
|
||
|
|
<TR>
|
||
|
|
<TD>CABARC 1.0</TD>
|
||
|
|
<TD>6455327</TD>
|
||
|
|
<TD>119%</TD>
|
||
|
|
</TR>
|
||
|
|
<TR>
|
||
|
|
<TD><B>7-Zip (zip format)</B></TD>
|
||
|
|
<TD><B>9461621</B></TD>
|
||
|
|
<TD><B>174%</B></TD>
|
||
|
|
</TR>
|
||
|
|
<TR>
|
||
|
|
<TD>PKZIP 2.50</TD>
|
||
|
|
<TD>9842800</TD>
|
||
|
|
<TD>181%</TD>
|
||
|
|
</TR>
|
||
|
|
</TABLE>
|
||
|
|
|
||
|
|
<H4>GZIP Format</H4>
|
||
|
|
|
||
|
|
<P>7-Zip provides the best compression ratio for GZIP format. The compression ratio
|
||
|
|
is equal to its compression ratio for ZIP format (above).</P>
|
||
|
|
|
||
|
|
</BODY>
|
||
|
|
</HTML>
|