From: David Miller <davem@davemloft.net>
To: adobriyan@gmail.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH] net: make struct net_device::min_header_len 8-bit
Date: Wed, 12 Apr 2017 13:59:40 -0400 (EDT) [thread overview]
Message-ID: <20170412.135940.1431947186410769270.davem@davemloft.net> (raw)
In-Reply-To: <20170410082526.GC24514@avx2>
From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Mon, 10 Apr 2017 11:25:26 +0300
> This field is never big enough to warrant 16-bitness.
>
> 8-bit accesses enjoy shorted encoding on i386/x86_64 than 16-bit
> accesses:
>
> add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-10 (-10)
> function old new delta
> loopback_setup 169 164 -5
> ether_setup 148 143 -5
>
> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Applied.
prev parent reply other threads:[~2017-04-12 17:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-10 8:25 [PATCH] net: make struct net_device::min_header_len 8-bit Alexey Dobriyan
2017-04-12 17:59 ` David Miller [this message]
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