Re: Making use of the BigRamPlus?
On 2013-12-17 10:17, Geert Uytterhoeven wrote:
On Tue, Dec 17, 2013 at 10:13 AM, Ingo Jürgensmann
<ij@2013.bluespice.org> wrote:
spice:/home/ij# modprobe phram phram=bigram,0x50000000,200Mi
spice:/home/ij# mkswap /dev/mtd0
mkswap: warning: truncating swap area to 17179869184 KiB
Strange... So it failed to write more data?
Can you dd 256 MiB to it?
spice:/home/ij# dd if=/dev/zero of=/dev/mtd0 bs=1M
dd: error writing '/dev/mtd0': No space left on device
257+0 records in
256+0 records out
268435456 bytes (268 MB) copied, 148.747 s, 1.8 MB/s
Not very speedy, eh? I would've expected around 10 MB/s...
How fast is it? "hdparm -tT /dev/mtd0".
spice:/home/ij# hdparm -tT /dev/mtd0
/dev/mtd0:
Timing cached reads: BLKFLSBUF failed: Inappropriate ioctl for device
6 MB in 2.17 seconds = 2.77 MB/sec
BLKFLSBUF failed: Inappropriate ioctl for device
BLKGETSIZE failed: Inappropriate ioctl for device
BLKFLSBUF failed: Inappropriate ioctl for device
--
Ciao... // Fon: 0381-2744150
. Ingo \X/ http://blog.windfluechter.net
gpg pubkey: http://www.juergensmann.de/ij_public_key.
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