netdev - Re: [RFC 6/6] fib_trie: combine leaf and info

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Message-ID: <478D22A7.6080506@cosmosbay.com>
Date:	Tue, 15 Jan 2008 22:16:23 +0100
From:	Eric Dumazet <dada1@...mosbay.com>
To:	Robert Olsson <Robert.Olsson@...a.slu.se>
CC:	Stephen Hemminger <stephen.hemminger@...tta.com>,
	David Miller <davem@...emloft.net>, robert.olsson@....uu.se,
	netdev@...r.kernel.org
Subject: Re: [RFC 6/6] fib_trie: combine leaf and info

Robert Olsson a écrit :
> 
> Stephen Hemminger writes:
>  > This is how I did it:
> 
>  Yes looks like an elegant solution. Did you even test it?
>  Maybe we see some effects in just dumping a full table?
> 
>  Anyway lookup should be tested in some way. We can a lot
>  of analyzing before getting to right entry, local_table
>  backtracking, main lookup w. ev. backtracking etc.  So
>  hopefully we get paid for this work.
> 
>  Also it might be idea to do some analysis of the fib_aliases
>  list. Maybe the trick can be done again? ;)
> 

Back in 2.6.9 times, sizeof(bi_alias) was 16 bytes on i386

Nowadays, 64/128 bytes are the norm :(

SLAB_HWCACHE_ALIGN is not our friend.

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