X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=README;h=d4b4ed1fc9df9544299f283b018adb3240d620e9;hp=caf0238df996d1123431f474e1ab98430697be88;hb=05e88d9b9a175a83a4f9978c42e574ca6bbc6ffb;hpb=c0f8b57abbe88037a167e3919dfa1e48162fdb05 diff --git a/README b/README index caf0238d..d4b4ed1f 100644 --- a/README +++ b/README @@ -48,12 +48,12 @@ 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 @@ -62,16 +62,13 @@ 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