On Sat, 5 May 2018 09:11:28 +0100 Chris Wilson <ch...@chris-wilson.co.uk> wrote:
> Quoting James Xiong (2018-05-05 01:56:01) > > This series align the buffer size up to page instead of a bucket > > size to improve memory allocation efficiency. > > It doesn't though. It still retrieves up to the bucket size, so with a > little cache poisoning (or a series of unfortunate events) it will be > no better than before. > > Perhaps open with the problem statement. What is it you are trying to > fix? Would adding metrics to the buffer cache be a good start to > demonstrating what needs improving? > -Chris In the worse case, it is the same as before; the best case however reduces the allocated size by about 25% of the requested size. in the real world, the best case was gl_5_off test where the patch saved 102749K(100+M) out of 1143593K, the worse case saved only 64K out of 12730K. The current implementation allocates 0% to 25% more memory than requested size with or without reuse enabled. I am trying to reduce the memory penalty. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
