85a9b1b562
This reduces the cache size for Deus Ex from ~160M to ~30M for radeonsi (these numbers differ from Grigori's results below probably due to different graphics quality settings). I'm also seeing the following improvements in minimum fps in the Shadow of Mordor benchmark on an i5-6400 CPU@2.70GHz, with a HDD: no-cache: ~10fps with-cache-no-compression: ~15fps with-cache-and-compression: ~20fps Note: The with cache results are from the second run after closing and opening the game to avoid the in-memory cache. Since we mainly care about decompression I went with Z_BEST_COMPRESSION as suggested on irc by Steinar H. Gunderson who has benchmarked decompression speeds. Grigori Goronzy provided the following stats for Deus Ex: Mankind Divided start-up times on a Athlon X4 860k with a SSD: No Cache 215 sec Cold Cache zlib BEST_COMPRESSION 285 sec Warm Cache zlib BEST_COMPRESSION 33 sec Cold Cache zlib BEST_SPEED 264 sec Warm Cache zlib BEST_SPEED 33 sec Cold Cache no compression 266 sec Warm Cache no compression 34 sec The total cache size for that game is 48 MiB with BEST_COMPRESSION, 56 MiB with BEST_SPEED and 170 MiB with no compression. These numbers suggest that it may be ok to go with Z_BEST_SPEED but we should gather some actual decompression times before doing so. Other options might be to do the compression in a separate thread, this might allow us to use a higher compression algorithim such as LZMA. Reviewed-by: Grigori Goronzy <greg@chown.ath.cx> Acked-by: Marek Olšák <marek.olsak@amd.com> |
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docs/README.WIN32
File: docs/README.WIN32 Last updated: 21 June 2013 Quick Start ----- ----- Windows drivers are build with SCons. Makefiles or Visual Studio projects are no longer shipped or supported. Run scons libgl-gdi to build gallium based GDI driver. This will work both with MSVS or Mingw. Windows Drivers ------- ------- At this time, only the gallium GDI driver is known to work. Source code also exists in the tree for other drivers in src/mesa/drivers/windows, but the status of this code is unknown. Recipe ------ Building on windows requires several open-source packages. These are steps that work as of this writing. - install python 2.7 - install scons (latest) - install mingw, flex, and bison - install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe - install git - download mesa from git see https://www.mesa3d.org/repository.html - run scons General ------- After building, you can copy the above DLL files to a place in your PATH such as $SystemRoot/SYSTEM32. If you don't like putting things in a system directory, place them in the same directory as the executable(s). Be careful about accidentially overwriting files of the same name in the SYSTEM32 directory. The DLL files are built so that the external entry points use the stdcall calling convention. Static LIB files are not built. The LIB files that are built with are the linker import files associated with the DLL files. The si-glu sources are used to build the GLU libs. This was done mainly to get the better tessellator code. If you have a Windows-related build problem or question, please post to the mesa-dev or mesa-users list.