Threading VU1 took a lot of rewrites and new code to make possible (MTGS, microVU, gifUnit...), but we finally got to the point where it was feasible, and now we've done it! (so now everyone can stop complaining that pcsx2 only takes advantages of 2 cores :p).
The speedups in the games that benefit from it are great if you have a cpu with 3+ cores (generally a 10~45% speedup), however games that are GS limited can be a slowdown (especially on dual core cpu's).
The option can be found in the speedhacks section as "MTVU (Multi-Threaded microVU1)". And when enabled it should should show the VU thread-time percentage on the title bar window (Like we currently do for EE/GS/UI threads).
It is listed as a speedhack because in order for threading VU1 to have been a speedup, we need to assume that games will not send gif packets containing Signal/Finish/Label commands from path 1 (vu1's xgkick). The good news is very-few games ever do this, so the compatibility of MTVU is very high (a game that does do this will likely hang).
Note: vs2010 builds and Linux builds need to be updated to include "MTVU.h" and "MTVU.cpp".
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@4865 96395faa-99c1-11dd-bbfe-3dabce05a288
- Fixed a bug with mVU's ESIN implementation. This finally fixes the flower-petal bug in Radiata Stories (and hopefully the clouds-bug in VP2 but havn't tested). Rama and I have wanted to fix this for a long time, but never knew the problem :p
- Improved implementation of some undefined behavior that happens on branches to take into account pipeline stalls.
gif / vif:
- Added some logging code that parses gif packets. It can be enabled by the PRINT_GIF_PACKET macro in Gif.h
- Deleted some old gif code.
- On ReadFIFO_VIF1() clear the out-reg to prevent uninitialized results in case GSreadFIFO() doesn't modify it...
- Create a fallback for GSreadFIFO2() so that its always defined (as long as the plugin implements GSreadFIFO())
pcsx2:
- Organized the virtual folders in vs2008 a bit...
Note: vs2010 and Linux builds need to be modified to add Gif_Logger.cpp and delete GIFpath.cpp
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@4835 96395faa-99c1-11dd-bbfe-3dabce05a288
