linux-kernel - Re: [PATCH] net: compute a more reasonable default ip6_rt_max

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Message-ID: <4FC1A57A.7080807@fb.com>
Date:	Sat, 26 May 2012 20:54:34 -0700
From:	Arun Sharma <asharma@...com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	David Miller <davem@...emloft.net>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] net: compute a more reasonable default ip6_rt_max_size

On 5/25/12 8:39 PM, Eric Dumazet wrote:
>
> But your patch is not a  "modest increase", so whats the deal ?
>
> A modest increase would be 8192 instead of 4096, regardless of RAM size.
>

Yes - 8192 solves our immediate problem, but I was worrying that the 
problem might resurface as ipv6 adoption becomes more widespread.

We were testing a pre-3.0 kernel that didn't have Dave's DST_NOCOUNT 
patch. Will retest with that patch applied.

 > More over, a boot parameter to tweak it is absolutely not needed

Agreed. Will remove that part.

Still not sure why you'd like to go for one size regardless of 
totalram_pages.

  -Arun
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