netdev - Re: [PATCH net-next-2.6] net: __alloc

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Date:	Wed, 05 May 2010 01:26:47 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org, hadi@...erus.ca, therbert@...gle.com
Subject: Re: [PATCH net-next-2.6] net: __alloc_skb() speedup

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Wed, 05 May 2010 10:22:14 +0200

> You mean memset() wont be inlined by ompiler to plain memory writes, but
> use the custom kernel memset()  ?

I hope memset() is never inlined for a 202 byte piece of memory on
sparc64 or powerpc.  What happens and makes sense on x86 is x86's
business :-)

Especially since that elides the cache invalidate optimizations, and
for anything >= 64 bytes those are absolutely critical on Niagara.
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