linux-kernel - Re: [PATCH] slob_free:free objects to their own list

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <4C40158C.4050402@cs.helsinki.fi>
Date:	Fri, 16 Jul 2010 11:17:16 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Bob Liu <lliubbo@...il.com>
CC:	Matt Mackall <mpm@...enic.com>, akpm@...ux-foundation.org,
	linux-mm@...ck.org, hannes@...xchg.org,
	LKML <linux-kernel@...r.kernel.org>, Mel Gorman <mel@....ul.ie>
Subject: Re: [PATCH] slob_free:free objects to their own list

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!
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/