Hi,
"Mulyadi Santosa" <[EMAIL PROTECTED]> writes:
> Hi
>
> On Sat, May 31, 2008 at 10:35 AM, Guo Hongruan <[EMAIL PROTECTED]> wrote:
>> Hi Bizhan,
>> Do you notice that the buffers has increased (399440 - 262256 = 137184)? So
>> I think it is because the *badblock* reads the block device and causes the
>> VFS buffer cache grows. The VFS buffer cache just borrows your free memory
>> and will returns when necessary.
>
> ...And to drop the cache, I remember there is entry under
> /proc/sys/vm/...its name is probably "drop_cache". IIRC, echo 2 to
> that file means flushing out (implicitly means sync it first with the
> backing storage) page cache and buffer.
It only drops clean stuff. So sync first manually.
Hannes
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