WIMLIB
-This is wimlib version 1.0.4 (October 2012). wimlib can be used to read,
-write, and mount files in the Windows Imaging Format (WIM files). These
-files are normally created by using the `imagex.exe' utility on Windows,
-but this library provides a free implementation of imagex for UNIX-based
-systems.
+This is wimlib version 1.1.0 (November 2012). wimlib can be used to read,
+write, and mount files in the Windows Imaging Format (WIM files). These files
+are normally created by using the `imagex.exe' utility on Windows, but this
+library provides a free implementation of imagex for UNIX-based systems.
WIM FILES
the XPRESS compression ratio is slightly better than that provided by
Microsoft's software, while the LZX compression ratio is approaching that of
Microsoft's software but is not quite there yet. Running time is as good as or
-better than Microsoft's software.
+better than Microsoft's software, especially with multithreaded compression,
+available in v1.1.0 and later.
The following tables compare the compression ratio and performance for creating
a compressed Windows PE image (disk usage of about 524 MB, uncompressed WIM size
Table 2. Time to create WIM
- XPRESS Compression LZX Compression
- wimlib imagex (v1.0.2): 18 sec 49 sec
- wimlib imagex (v1.0.3): 19 sec 30 sec
- Microsoft imagex.exe: 25 sec 89 sec
+ XPRESS Compression LZX Compression
+ wimlib imagex (v1.0.2): 18 sec 49 sec
+ wimlib imagex (v1.0.3): 19 sec 30 sec
+ wimlib imagex (v1.1.0, 2 threads): 11 sec 17 sec
+ Microsoft imagex.exe: 25 sec 89 sec
NTFS SUPPORT