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From: Pekka Enberg on 16 Jul 2010 04:20
Bob Liu wrote:
> This is /proc/meminfo result in my test machine:
> without this patch:
> ===
> MemTotal: 1030720 kB
> MemFree: 750012 kB
> Buffers: 15496 kB
> Cached: 160396 kB
> SwapCached: 0 kB
> Active: 105024 kB
> Inactive: 145604 kB
> Active(anon): 74816 kB
> Inactive(anon): 2180 kB
> Active(file): 30208 kB
> Inactive(file): 143424 kB
> Unevictable: 16 kB
> ....
>
> with this patch:
> ===
> MemTotal: 1030720 kB
> MemFree: 751908 kB
> Buffers: 15492 kB
> Cached: 160280 kB
> SwapCached: 0 kB
> Active: 102720 kB
> Inactive: 146140 kB
> Active(anon): 73168 kB
> Inactive(anon): 2180 kB
> Active(file): 29552 kB
> Inactive(file): 143960 kB
> Unevictable: 16 kB
> ...
>
> The result show only very small improverment!
> And when i tested it on a embeded system with 64MB, I found this path
> is never called while kernel booting.

That's 1 MB improvement which is by no means small! I applied the patch.
Thanks Bob!
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