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
-361 MB):
+a compressed x86_64 Windows PE image. Note: these timings were done in a
+Windows 7 virtual machine so that the times would be fully comparable; however,
+wimlib-imagex will have even better performance on Linux.
Table 1. WIM size
XPRESS Compression LZX Compression
- wimlib-imagex (v1.2.1): 138,971,353 bytes 131,379,943 bytes
- Microsoft imagex.exe: 140,406,981 bytes 127,249,176 bytes
+ wimlib-imagex (v1.4.0): 176,724,198 bytes 165,919,718 bytes
+ Microsoft imagex.exe: 178,763,991 bytes 160,138,533 bytes
Table 2. Time to create WIM
XPRESS Compression LZX Compression
- wimlib-imagex (v1.2.1, 2 threads): 11 sec 17 sec
- Microsoft imagex.exe: 25 sec 89 sec
+ wimlib-imagex (v1.4.0, 2 threads): 44 sec 66 sec
+ Microsoft imagex.exe: 60 sec 115 sec
NTFS SUPPORT
You can see the documentation about Microsoft's version of ImageX at
http://technet.microsoft.com/en-us/library/cc749447(v=ws.10).aspx, so you can
-see how it compares to the version provided by this library.
+see how it compares to wimlib-imagex.
If you are looking for a UNIX archive format that provides features similar to
WIM, I recommend you take a look at SquashFS (http://squashfs.sourceforge.net/).