From: Ingo Oeser <netdev@axxeo•de>
To: Wang Chen <wangchen@cn•fujitsu.com>
Cc: "David S. Miller" <davem@davemloft•net>, NETDEV <netdev@vger•kernel.org>
Subject: Re: [PATCH 1/2] ipmr: delete redundant variable
Date: Fri, 25 Jul 2008 19:36:42 +0200 [thread overview]
Message-ID: <200807251936.42504.netdev@axxeo.de> (raw)
In-Reply-To: <48883131.9070805@cn.fujitsu.com>
Hi Wang Chen,
Wang Chen schrieb:
> Ingo Oeser said the following on 2008-7-23 20:05:
> > But please check the generated assembly yourself on a CISC and RISC
> > machine to get an idea of the effects. It will be a nice learning
> > experience I enjoyed myself already.
> >
>
> I did the experiment.
[..]
> In loop area, they are both ptr+sizeof(struct).
>
> Now, we can get a conclusion that current compiler can do optimize the index accessing.
> :)
>
> Ingo, if you have any different opinion, it will be appreciated that you can share. :)
Great! Compilers improved a lot here :-)
Many thanks for doing this experiment.
Now you and others can anyone who is is questioning
this fact to your experiment and take it as a reference for similiar changes.
That is a great help for the community, I think!
Best Regards
Ingo Oeser
prev parent reply other threads:[~2008-07-25 17:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-23 1:45 [PATCH 1/2] ipmr: delete redundant variable Wang Chen
2008-07-23 8:03 ` Ingo Oeser
2008-07-23 9:35 ` Wang Chen
2008-07-23 12:05 ` Ingo Oeser
2008-07-23 15:16 ` Wang Chen
2008-07-24 7:37 ` Wang Chen
2008-07-25 17:36 ` Ingo Oeser [this message]
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