X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=README;h=786ded7c7ff18dca51046b7ab8f5bca392a53e46;hp=966ec45ae07a7ea1d92b56ef1df91037f59de3cf;hb=8846dc57c638e837f38cd28dcd41f71e83d648c2;hpb=4355f268543a3e79faefb4225c242fce32c49336 diff --git a/README b/README index 966ec45a..786ded7c 100644 --- a/README +++ b/README @@ -1,6 +1,6 @@ INTRODUCTION -This is wimlib version 1.7.5-BETA (January 2015). wimlib is a C library for +This is wimlib version 1.8.1-BETA (April 2015). wimlib is a C library for creating, modifying, extracting, and mounting files in the Windows Imaging Format (WIM files). wimlib and its command-line frontend 'wimlib-imagex' provide a free and cross-platform alternative to Microsoft's WIMGAPI, ImageX, @@ -65,20 +65,15 @@ commands and their syntax. For additional documentation: COMPRESSION RATIO wimlib (and wimlib-imagex) can create XPRESS, LZX, or LZMS compressed WIM files. -wimlib includes its own compression codecs and does not use the compression API -available on some versions of Windows. - -I have gradually been improving the compression codecs in wimlib. For all three -codecs, they now usually outperform and outcompress the equivalent Microsoft -implementations. Although results will vary depending on the data being -compressed, in the table below I present the results for a common use case: -compressing an x86 Windows PE image. Each row displays the compression type, -the size of the resulting WIM file in bytes, and how many seconds it took to -create the file. When applicable, the results with the equivalent Microsoft -implementation in WIMGAPI is included. +wimlib's compression codecs usually outperform and outcompress their Microsoft +equivalents. Although results will vary depending on the data being compressed, +the table below shows results for a common use case: creating an x86 Windows PE +image ("boot.wim"). Each row shows the compression type, the size of the +resulting WIM file in bytes, and the time it took to create the file. When +possible, the results with the Microsoft equivalent are included. ============================================================================= - | Compression || wimlib (v1.7.5-BETA) | WIMGAPI (Windows 8.1) | + | Compression || wimlib (v1.8.0) | WIMGAPI (Windows 8.1) | ============================================================================= | None [1] || 361,314,224 in 2.4s | 361,315,338 in 4.5s | | XPRESS [2] || 138,218,750 in 3.0s | 140,457,436 in 6.0s | @@ -139,7 +134,7 @@ Testing environment: The compression ratio provided by wimlib is also competitive with commonly used archive formats. Below are file sizes that result when the Canterbury corpus is -compressed with wimlib (v1.7.5), WIMGAPI (Windows 8.1), and some other +compressed with wimlib (v1.8.0), WIMGAPI (Windows 8.1), and some other formats/programs: =====================================================