netdev - Re: [PATCH net-next v2] net_sched: qdisc_alloc

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Message-ID: <1325622892.2611.11.camel@edumazet-laptop>
Date:	Tue, 03 Jan 2012 21:34:52 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, dave.taht@...il.com
Subject: Re: [PATCH net-next v2] net_sched: qdisc_alloc_handle() can be too
 slow

Le mardi 03 janvier 2012 à 13:03 -0500, David Miller a écrit :

> Applied, thanks Eric.  I always cringed when I looked at this function :)
> 

Yep :(

I'll add an IDR (and not a btree as I stated earlier) to get O(1)
allocations and qdisc_lookup(), it should help to optimize
qdisc_tree_decrease_qlen() [ Slow as hell for complex qdisc setups ]



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