On Mon, 2005-02-21 at 21:34 +0100, Daniel Egger wrote: > On 21.02.2005, at 19:07, Jay Cox wrote: > > > I'm not sure what system the benchmark is being run on, but the cache > > line size on a P4 is 128Byes (most other systems have smaller cache > > line > > sizes). A simple test to see if this is the problem would be to change > > the tile allocation code to allocate an extra 128 bytes of memory per > > tile. See app/base/tile.c line 221 > > Dual Opteron. Should only need 64 bytes then. > > > I think it would be a good idea to get some timings from some other > > operations also. Perhaps painting with a large brush, or flattening a > > complicated image. > > Sven, what procedures are currently "parallelized"? > My recolection from many years ago is this: All of the tools->color_tools Histogram calculation All compositing(?) including: Layer stack compositing Brush->drawable compositing More recently sven has parallelized: gimp_image_contiguous_region_by_color gimp_drawable_desaturate gradient_fill_region Jay Cox jaycox@xxxxxxxx
