From: Andi Kleen <ak@suse.de>
To: "David S. Miller" <davem@redhat.com>
Cc: ak@suse.de, niv@us.ibm.com, linux-kernel@vger.kernel.org
Subject: Re: [ANNOUNCE] NF-HIPAC: High Performance Packet Classification
Date: Thu, 26 Sep 2002 02:46:45 +0200 [thread overview]
Message-ID: <20020926024645.A15246@wotan.suse.de> (raw)
In-Reply-To: <20020925.172931.115908839.davem@redhat.com>
On Wed, Sep 25, 2002 at 05:29:31PM -0700, David S. Miller wrote:
> The current FIBs have a bit heavier locking at least. Fine grain locking
> btrees is also not easy/nice.
>
> Also not necessary, only the top level cache really needs to be
> top performance.
Sure, but if they were unified (that is what I understood what the original
poster wanted to do) then they would be suddenly much more performance
critical and need fine grained locking.
-Andi
P.S.: One big performance problem currently is ip_conntrack. It has a bad
hash function and tends to have a too big working set (beyond cache size)
Some tuning in this regard would help a lot of workloads.
next prev parent reply other threads:[~2002-09-26 0:42 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3D924F9D.C2DCF56A@us.ibm.com.suse.lists.linux.kernel>
[not found] ` <20020925.170336.77023245.davem@redhat.com.suse.lists.linux.kernel>
2002-09-26 0:31 ` [ANNOUNCE] NF-HIPAC: High Performance Packet Classification Andi Kleen
2002-09-26 0:29 ` David S. Miller
2002-09-26 0:46 ` Andi Kleen [this message]
2002-09-26 0:44 ` David S. Miller
2002-09-26 9:00 ` Roberto Nibali
2002-09-26 9:06 ` David S. Miller
2002-09-26 9:24 ` Roberto Nibali
2002-09-26 9:21 ` David S. Miller
2002-09-26 15:13 ` James Morris
2002-09-26 20:51 ` Roberto Nibali
2002-09-26 10:25 ` Roberto Nibali
2002-09-26 10:20 ` David S. Miller
2002-09-26 10:49 ` Roberto Nibali
2002-09-26 12:03 ` jamal
2002-09-26 20:23 ` Roberto Nibali
2002-09-27 13:57 ` jamal
2002-09-26 12:04 ` Andi Kleen
2002-09-26 20:49 ` Roberto Nibali
2002-09-30 17:36 ` Bill Davidsen
2002-10-02 17:37 ` Roberto Nibali
2002-09-26 1:17 ` Nivedita Singhvi
2002-09-26 1:15 ` Andi Kleen
2002-09-26 0:06 Nivedita Singhvi
2002-09-26 0:03 ` David S. Miller
2002-09-26 0:50 ` Nivedita Singhvi
2002-09-26 0:40 ` David S. Miller
2002-09-26 1:09 ` Nivedita Singhvi
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