Did you compare speed of builds from builder.blender.org? In my tests it takes only about 3sec until first tile appears during rendering with BMW1M-MikePan. 40sec for sync sounds too much,
On Tue, Dec 29, 2015 at 3:57 PM, Cezary Kopias <[email protected]> wrote: > http://www.pasteall.org/pic/96989 > > On 28 December 2015 at 06:19, Yousef Harfoush <[email protected]> wrote: > > > HI > > here is 2 builds with the default config except no player, ge, osl, > > opensubdiv, collada: > > cmake+vc12 => 01:48 > > https://www.dropbox.com/s/03unj4x8xz3zp97/cmak%2Bvc12.7z?dl=0 > > cmake+mingw => 01:08 > > https://www.dropbox.com/s/pbyyl1mpttkamwf/cmake%2Bmingw.7z?dl=0 > > > > The render speed differs greatly between vc12 and mingw, using > > BMW1M-MikePan scene with nvidia geforce 660 > > > > 40 second spent on sync and bvh in vc12! which would kill animation > > rendering times. > > > > > > > > > > Regards > > Yousef Harfoush > > [email protected] > > > > > > > > > Date: Sun, 27 Dec 2015 10:14:47 +0000 > > > From: [email protected] > > > To: [email protected] > > > Subject: Re: [Bf-committers] MinGW support > > > > > > Can you back that value up? > > > > > > When we were still using MSVC 2008, the difference to gcc/clang was > > > indeed quite large. > > > But since we switched to MSVC 2013, I highly doubt it's more than > 5-10%. > > > > > > > > > Zitat von Yousef Harfoush <[email protected]>: > > > > > > > but is it not worth 40% render time reduction to support mingw, i > > > > mean that's is like 2 years of optimizing cycles, isn't it, i think > > > > it's better to drop vc12 in favor of mingw. > > > > > > > > > > > > > _______________________________________________ > > > Bf-committers mailing list > > > [email protected] > > > http://lists.blender.org/mailman/listinfo/bf-committers > > > > _______________________________________________ > > Bf-committers mailing list > > [email protected] > > http://lists.blender.org/mailman/listinfo/bf-committers > > > _______________________________________________ > Bf-committers mailing list > [email protected] > http://lists.blender.org/mailman/listinfo/bf-committers > -- With best regards, Sergey Sharybin _______________________________________________ Bf-committers mailing list [email protected] http://lists.blender.org/mailman/listinfo/bf-committers
