Am 03.11.2014 um 14:58 schrieb Ezequiel Garcia: > On 11/03/2014 02:03 AM, Ming Lei wrote: >> On Sun, Nov 2, 2014 at 9:00 PM, Richard Weinberger <[email protected]> wrote: >>> Convert the driver to blk-mq. >> >> It is always helpful to include some performance comparison data( >> randrw, rw) between blk-mq and non-mq. >> > > UBI block support is read-only for now so you'll be able to run read > tests only. > > Richard: If at all possible, it would be interested to so some > performance tests on *real* devices, not only RAM-based ones.
Sure. There you go: nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xda nand: Micron NAND 256MiB 3,3V 8-bit nand: 256MiB, SLC, page size: 2048, OOB size: 64 root@debian-armhf:~# dd if=/dev/ubiblock0_0 of=/dev/zero bs=1M 243+1 records in 243+1 records out 255080448 bytes (255 MB) copied, 4.39295 s, 58.1 MB/s vs. root@debian-armhf:~# dd if=/dev/ubiblock0_0 of=/dev/zero bs=1M 243+1 records in 243+1 records out 255080448 bytes (255 MB) copied, 2.87676 s, 88.7 MB/s Thanks, //richard
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