From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vinod Koul Subject: Re: [PATCH] dmaengine: omap-dma: Enable burst and data pack for SG Date: Sat, 1 Oct 2016 11:35:45 +0530 Message-ID: <20161001060544.GD2467@localhost> References: <20160916105315.28320-1-peter.ujfalusi@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20160916105315.28320-1-peter.ujfalusi@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: Peter Ujfalusi Cc: dan.j.williams@intel.com, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, tony@atomide.com, linux@armlinux.org.uk, misael.lopez@ti.com List-Id: linux-omap@vger.kernel.org On Fri, Sep 16, 2016 at 01:53:15PM +0300, Peter Ujfalusi wrote: > From: Misael Lopez Cruz > > Enable the burst and data pack modes for the scatter-gather > in order to improve the throughput of the data transfers. > > The improvement has been verified with MMC HS200 mode in > the DRA72 EVM using the iozone tool to compare the read > throughput (in kB/s) with and without burst/pack for > different reclens (in kB). > > With > reclen Baseline sDMA burst/pack > ------ -------- --------------- > 64 46568 50820 > 128 57564 63413 > 256 65634 74937 > 512 72427 83483 > 1024 74563 84504 > 2048 76265 86079 > 4096 78045 87335 > 8192 78989 88154 > 16384 81265 91034 Applied, thanks -- ~Vinod