OneNAND: read-while-load
Artem Bityutskiy
dedekind at infradead.org
Fri Jan 5 04:01:40 EST 2007
Kyungmin, Adrian,
On Fri, 2007-01-05 at 07:15 +0000, Kyungmin Park wrote:
> I will run regression test with this one during this weekend.
>
> And which program (JFFS2 or UBI) do you use.
>
> I can't find any performance increase in JFFS2
It depends how you tested it. Surely you notice some performance gain
only if JFFS2 reads more then 2K bytes of data. And this only happens
when you read files's contents, especially if this file's pages were not
compressed to less then 2K.
So a test like:
dd if=/dev/udandom of=/mnt/jffs2/file bs=4K
time dd if=/mnt/jffs2/file of=/dev/null
would be roughly OK.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
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