On Thu, Jan 16, 2014 at 02:10:53PM +0800, hongbo.zh...@freescale.com wrote: > From: Hongbo Zhang <hongbo.zh...@freescale.com> > > Freescale DMA has a feature of BandWidth Control (ab. BWC), which is currently > 256 bytes and should be changed to 1024 bytes for best DMA throughput. > Changing BWC from 256 to 1024 will improve DMA performance much, in cases > whatever one channel is running or multi channels are running simultanously, > large or small buffers are copied. And this change doesn't impact memory > access performance remarkably, lmbench tests show that for some cases the > memory performance are decreased very slightly, while the others are even > better. > Tested on T4240.
Applied, thanks -- ~Vinod _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
