From: jamal <hadi@cyberus.ca>
To: Changli Gao <xiaosuo@gmail.com>
Cc: David Miller <davem@davemloft.net>,
Tom Herbert <therbert@google.com>,
Eric Dumazet <eric.dumazet@gmail.com>,
netdev@vger.kernel.org
Subject: Re: [PATCH v3] rps: optimize rps_get_cpu()
Date: Sat, 24 Apr 2010 12:04:12 -0400 [thread overview]
Message-ID: <1272125052.8918.18.camel@bigi> (raw)
In-Reply-To: <1272122227-13070-1-git-send-email-xiaosuo@gmail.com>
By the time you hit this code (at least on machines that make sense for
RPS), you already have the ethernet header, IP header and transport
ports in cache, no?
I think the sport << 16 shifting is avoided - but i dont think theres
any effect on mem access.
cheers,
jamal
next prev parent reply other threads:[~2010-04-24 16:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-24 15:17 [PATCH v3] rps: optimize rps_get_cpu() Changli Gao
2010-04-24 16:04 ` jamal [this message]
2010-04-24 16:19 ` Changli Gao
2010-04-24 16:22 ` jamal
2010-04-25 5:51 ` David Miller
2010-04-25 6:48 ` Changli Gao
2010-04-25 7:38 ` David Miller
2010-04-25 7:48 ` David Miller
2010-04-25 8:03 ` Changli Gao
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