netdev - Re: [PATCH] net: rps: add the shortcut for one rps

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] [thread-next>] [day] [month] [year] [list]

Message-ID: <AANLkTik8EXfzTzJGBu9pQKQUO6WQM9p1gmr64vkQjA64@mail.gmail.com>
Date:	Sat, 4 Sep 2010 20:18:20 +0800
From:	Changli Gao <xiaosuo@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH] net: rps: add the shortcut for one rps_cpus

On Sat, Sep 4, 2010 at 7:01 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> You are 'optimizing' a very unusual case and slow down 99% of normal
> uses.
>
> Normal way to handle this, is to use irq affinity and deliver interrupts
> directly to the target cpu.
>
>

Some pseudo network devices may share the same interrupt, such as vlan
network devices. In this case, setting the IRQ affinity can't work.

-- 
Regards,
Changli Gao(xiaosuo@...il.com)
--
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