netdev - Re: [PATCH] NET : align inet

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]

Date:	Tue, 27 Mar 2007 14:20:17 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	dada1@...mosbay.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] NET : align inet_protos[] on SMP

From: Eric Dumazet <dada1@...mosbay.com>
Date: Tue, 27 Mar 2007 15:47:04 +0200

> As IPPROTO_TCP is 6, it makes sense to make sure inet_protos[] array is properly cache line aligned to avoid false sharing on SMP.
> 
> c0680540 b peer_total
> c0680544 b inet_peer_unused_head
> c0680560 B inet_protos
> 
> On i386 this example, we can see that inet_protos[IPPROTO_TCP] shares a potentially hot (and modified) cache line.
> 
> Signed-off-by: Eric Dumazet <dada1@...mosbay.com>

Applied, thanks again Eric.

We could probably add some const markings to these things as well.
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html