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From: David Miller <davem@davemloft.net>
To: alexander.h.duyck@redhat.com
Cc: netdev@vger.kernel.org, stephen@networkplumber.org,
	jiri@resnulli.us, sfeldma@gmail.com
Subject: Re: [net-next PATCH] ipv4: FIB Local/MAIN table collapse
Date: Wed, 11 Mar 2015 16:28:50 -0400 (EDT)	[thread overview]
Message-ID: <20150311.162850.1722797143871993349.davem@davemloft.net> (raw)
In-Reply-To: <20150306213830.1139.16932.stgit@ahduyck-vm-fedora20>

From: Alexander Duyck <alexander.h.duyck@redhat.com>
Date: Fri, 06 Mar 2015 13:47:00 -0800

> This patch is meant to collapse local and main into one by converting
> tb_data from an array to a pointer.  Doing this allows us to point the
> local table into the main while maintaining the same variables in the
> table.
> 
> As such the tb_data was converted from an array to a pointer, and a new
> array called data is added in order to still provide an object for tb_data
> to point to.
> 
> In order to track the origin of the fib aliases a tb_id value was added in
> a hole that existed on 64b systems.  Using this we can also reverse the
> merge in the event that custom FIB rules are enabled.
> 
> With this patch I am seeing an improvement of 20ns to 30ns for routing
> lookups as long as custom rules are not enabled, with custom rules enabled
> we fall back to split tables and the original behavior.
> 
> Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>

I've applied this, let's see what happens.

  parent reply	other threads:[~2015-03-11 20:28 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-06 21:47 [net-next PATCH] ipv4: FIB Local/MAIN table collapse Alexander Duyck
2015-03-11 14:58 ` Alexander Duyck
2015-03-11 16:03   ` Dave Taht
2015-03-11 16:23     ` Alexander Duyck
2015-03-11 17:13       ` Dave Taht
2015-03-11 20:28 ` David Miller [this message]
2015-03-12 19:20 ` Madhu Challa
2015-03-12 20:08   ` Alexander Duyck

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