WIMLIB
-This is wimlib version 1.2.0 (November 2012). wimlib can be used to read,
+This is wimlib version 1.2.1 (December 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.
image of Windows PE that can be put on a CD or USB drive, or published on a
server for PXE booting. See the main page `doc/mkwinpeimg.1' for more details.
+There is an additional program, `wimapply', that is not installed by default.
+It can be used to build a small executable with the ability to apply a WIM image
+from a standalone WIM, without having to build the whole shared library. This
+could be useful on Linux boot clients that only need to be able to apply a WIM,
+not capture/split/join/append/export/mount a WIM. See `programs/wimapply.c'.
+
COMPRESSION RATIO
-wimlib can create XPRESS or LZX compressed WIM archives. As of wimlib v1.0.3,
-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, especially with multithreaded compression,
-available in v1.1.0 and later.
+wimlib can create XPRESS or LZX compressed WIM archives. Currently, the 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, especially with multithreaded compression, available in
+wimlib 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 1. WIM size
XPRESS Compression LZX Compression
- wimlib imagex (v1.0.2): 145,283,871 bytes 139,288,293 bytes
- wimlib imagex (v1.0.3): 139,288,293 bytes 131,379,869 bytes
+ wimlib imagex (v1.2.1): 138,971,353 bytes 131,379,943 bytes
Microsoft imagex.exe: 140,406,981 bytes 127,249,176 bytes
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
- wimlib imagex (v1.1.0, 2 threads): 11 sec 17 sec
+ wimlib imagex (v1.2.1, 2 threads): 11 sec 17 sec
Microsoft imagex.exe: 25 sec 89 sec
NTFS SUPPORT
git://wimlib.net / wimlib / blobdiff