Hi, On Tue, Jul 10 2012, merez@xxxxxxxxxxxxxx wrote: >> Sorry, I don't have a copy of the eMMC 4.5 spec -- is PACKED_EVENT_EN >> a one-time programmable fuse on the eMMC, like BKOPS_ENABLE was? > > No, it's not. Excellent, thanks. I've pushed both v8 patches to mmc-next. Before pushing it up to Linus, I'd like to get a better idea of the variety of performances differences seen using packed writes -- has it been tried on devices from multiple eMMC vendors, and multiple host controller vendors? Can we try to build up a quick table of results, with a standard test like iozone, to check that we've got decent test coverage? Seungwon suggests using: iozone -az -i0 -I -s 10m -f /target/test -e I'm also worried about how much code this is adding, but I agree that it's worth it if the performance benefits are as described. Thanks, - Chris. -- Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/> One Laptop Per Child -- 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
