Prev: radixtree: speed up the search for hole
Next: x86,kgdb: Implement early hardware breakpoint debugging
From: Rik van Riel on 25 Feb 2010 18:50
On 02/23/2010 10:10 PM, Wu Fengguang wrote:
> Now that we lifts readahead size from 128KB to 512KB,
> the MMAP_LOTSAMISS shall be shrinked accordingly.
>
> We shrink it a bit more, so that for sparse random access patterns,
> only 10*512KB or ~5MB memory will be wasted, instead of the previous
> 100*128KB or ~12MB. The new threshold "10" is still big enough to avoid
> turning off read-around for typical executable/lib page faults.
>
> CC: Nick Piggin<npiggin(a)suse.de>
> Signed-off-by: Wu Fengguang<fengguang.wu(a)intel.com>

Acked-by: Rik van Riel <riel(a)redhat.com>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo(a)vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
 | 
Pages: 1
Prev: radixtree: speed up the search for hole
Next: x86,kgdb: Implement early hardware breakpoint debugging