On Tue, Sep 27, 2011 at 10:42 PM, Linus Walleij <linus.walleij@xxxxxxxxxx> wrote: > On Fri, Sep 23, 2011 at 7:05 AM, Praveen G K <praveen.gk@xxxxxxxxx> wrote: > >> I am working on the block driver module of the eMMC driver (SDIO 3.0 >> controller). I am seeing very low write speed for eMMC transfers. On >> further debugging, I observed that every 63rd and 64th transfer takes >> a long time. > > Are you not just seeing the card-internal garbage collection? > http://lwn.net/Articles/428584/ Does this mean, theoretically, I should be able to achieve larger speeds if I am not using linux? So, is this a software issue? or if there is a way to increase the size of bounce buffers to 4MB? > Yours, > Linus Walleij > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
