On Thu, Jan 25, 2018 at 1:09 AM, Richard Henderson <richard.hender...@linaro.org> wrote: > On 01/24/2018 01:49 PM, Howard Spoelstra wrote: >> Hi, >> >> I built qemu-system-ppc for OSX and Windows from >> https://github.com/stsquad/qemu/tree/softfloat-refactor-and-fp16-v3 >> and noticed a considerable drop in floating point performance on both >> hosts. >> Running Mac OS 9.2 in OSX, using MacBench 3.0, the score for the >> floating point performance dropped from ~60 to ~42. >> >> Recent tcg optimisations had improved processor and floating point >> performance considerably, but that gain seems to be more than lost for >> the floating point performance. >> >> Any idea what is causing this? > > Is this a 64-bit or a 32-bit build? > > We made a conscious choice to share code and use all 64-bit operations, under > the assumption that x86_64 is the most common host. > > Otherwise we have not really done extensive benchmarking. > > > r~
Hi, Both OSX and Windows builds are 64-bit. Best, Howard
