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On Friday 05 August 2011, Arnd Bergmann wrote:
> This patch adds board support for the DEVIXP, the MICCPT, and the
> MIC256, which are three IXP425 based boards produced by OMICRON
> electronics, GmbH.
>
> Signed-off-by: Richard Cochran <richard.cochran(a)omicron.at>
Pulled, finally.
Thanks for your patience,
Arnd
On Wednesday 21 September 2011, David Yip wrote:
> Ok, here is the result:
Cc'd the mailing list.
Thanks for the update, I'm adding this to the wiki now.
Arnd
> vpcf1 ~ # head /sys/block/mmcblk0/device/{cid,csd,scr,*rev,*id,name,serial}
>
> ==> /sys/block/mmcblk0/device/cid <==
> 744a45534443202000000004c000b700
>
> ==> /sys/block/mmcblk0/device/csd <==
> 400e00325b59000077957f800a400000
>
> ==> /sys/block/mmcblk0/device/scr <==
> 0235800000000000
>
> ==> /sys/block/mmcblk0/device/fwrev <==
> 0x0
>
> ==> /sys/block/mmcblk0/device/hwrev <==
> 0x0
>
> ==> /sys/block/mmcblk0/device/cid <==
> 744a45534443202000000004c000b700
>
> ==> /sys/block/mmcblk0/device/manfid <==
> 0x000074
>
> ==> /sys/block/mmcblk0/device/oemid <==
> 0x4a45
>
> ==> /sys/block/mmcblk0/device/name <==
> SDC
>
> ==> /sys/block/mmcblk0/device/serial <==
> 0x000004c0
>
> vpcf1 ~ # fdisk -lu /dev/mmcblk0
>
> Disk /dev/mmcblk0: 16.1 GB, 16050552832 bytes
> 255 heads, 63 sectors/track, 1951 cylinders, total 31348736 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x000d6d26
>
> Device Boot Start End Blocks Id System
> /dev/mmcblk0p1 8192 31342591 15667200 83 Linux
>
>
> vpcf1 flashbench # ./flashbench --open-au --open-au-nr=5
> --random --blocksize=512 --erasesize=$[4 *
> 1024 * 1024] /dev/mmcblk0
> 4MiB 7.45M/s
> 2MiB 6.61M/s
> 1MiB 7.59M/s
> 512KiB 7.63M/s
> 256KiB 7.52M/s
> 128KiB 7.43M/s
> 64KiB 7.35M/s
> 32KiB 5.56M/s
> 16KiB 3.68M/s
> 8KiB 1.49M/s
> 4KiB 750K/s
> 2KiB 366K/s
> 1KiB 185K/s
> 512B 93.3K/s
> vpcf1 flashbench # ./flashbench --open-au --open-au-nr=5
> --random --blocksize=1024 --erasesize=$[4 *
> 1024 * 1024] /dev/mmcblk0
> 4MiB 8.36M/s
> 2MiB 8.34M/s
> 1MiB 8.3M/s
> 512KiB 8.27M/s
> 256KiB 8.22M/s
> 128KiB 8.07M/s
> 64KiB 7.89M/s
> 32KiB 5.47M/s
> 16KiB 3.56M/s
> 8KiB 1.46M/s
> 4KiB 739K/s
> 2KiB 361K/s
> 1KiB 176K/s
> vpcf1 flashbench # ./flashbench --open-au --open-au-nr=5
> --random --blocksize=2048 --erasesize=$[4 *
> 1024 * 1024] /dev/mmcblk0
> 4MiB 7.07M/s
> 2MiB 7.02M/s
> 1MiB 6.99M/s
> 512KiB 6.95M/s
> 256KiB 6.94M/s
> 128KiB 6.83M/s
> 64KiB 6.67M/s
> 32KiB 5.52M/s
> 16KiB 3.66M/s
> 8KiB 1.48M/s
> 4KiB 734K/s
> 2KiB 367K/s
> vpcf1 flashbench # ./flashbench --open-au --open-au-nr=5
> --random --blocksize=4096 --erasesize=$[4 *
> 1024 * 1024] /dev/mmcblk0
> 4MiB 7.36M/s
> 2MiB 6.96M/s
> 1MiB 6.99M/s
> 512KiB 6.95M/s
> 256KiB 6.92M/s
> 128KiB 6.82M/s
> 64KiB 6.67M/s
> 32KiB 5.49M/s
> 16KiB 3.66M/s
> 8KiB 1.48M/s
> 4KiB 733K/s
> vpcf1 flashbench # ./flashbench --open-au --open-au-nr=5
> --random --blocksize=8192 --erasesize=$[4 *
> 1024 * 1024] /dev/mmcblk0
> 4MiB 4.05M/s
> 2MiB 7.05M/s
> 1MiB 6.98M/s
> 512KiB 6.96M/s
> 256KiB 6.91M/s
> 128KiB 6.76M/s
> 64KiB 6.59M/s
> 32KiB 5.42M/s
> 16KiB 2.63M/s
> 8KiB 1.46M/s
>
>
> Hope they are what you need : )
It's enough, yes. The blocksize argument actually doesn't really affect
anything, except how many tests are run -- with blocksize=8192 it just
stops earlier than with blocksize=1024.
What I normally need is the result of one run with --nr-open-au just
after the threshold, i.e 6 in this case. Since you already had those
before, it's fine.
>
> On Wed, Sep 21, 2011 at 2:45 AM, Arnd Bergmann <arnd.bergmann(a)linaro.org>wrote:
>
> > On Tuesday 20 September 2011, David Yip wrote:
> > > Hi Arnd,
> > >
> > > I did few tests of Transcend SDHC CL6 16GB SD Flash.
> > >
> > http://www.picstop.co.uk/media/catalog/product/cache/1/image/5e06319eda06f0…
> > >
> > > The erase size block is 4MB, I *believe*.
> >
> > Hi David,
> >
> > Yes, this card is pretty much standard, 4MB erase blocks, 5 open
> > simultaneously.
> > I've added it to the wiki, but it would be nice if you could provide the
> > remaining data, similar to the commands I posted in
> > http://lists.linaro.org/pipermail/flashbench-results/2011-March/000039.html
> >
> > For a simple card like this, doing a "flashbench -a --blocksize=1024"
> > test should show the erase block size very clearly, so you don't need
> > to do all the tests. I would also strongly recommend not scripting
> > around flashbench but doing it one run at a time, which is much
> > faster (you can kill it as soon as you see that it's clearly within
> > the pathological path of the --open-au test) and does not wear out
> > the card that much. For the number of open erase blocks, the only
> > thing that matters really is the highest number that is fast, followed
> > by one after that which is slow.
> >
> > What I want to add to the wiki along with this is
> >
> > - complete identification (from /sys/block/mmcblk0/device/* on SD/mmc
> > or hdparm -I on CF/ATA)
> > - exact size (from /proc/partitions or fdisk -lu)
> > - page size (do one fast test run with --blocksize=512 to try all
> > block size)
> >
> > I'd definitely like to see more results, especially if you have other
> > SSDs or USB drives. It would also be nice to post the results inline
> > in the mail instead of an attachment and to take
> > flashbench-results(a)lists.linaro.org on Cc: so they end up in the
> > online archive.
> >
> > Thanks,
> >
> > Arnd
> >
>
