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From: Eric Dumazet <eric.dumazet@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: netdev <netdev@vger.kernel.org>,
	Patrick McHardy <kaber@trash.net>,
	Jesper Dangaard Brouer <hawk@diku.dk>,
	Jarek Poplawski <jarkao2@gmail.com>, jamal <hadi@cyberus.ca>
Subject: Re: [PATCH net-next-2.6] net_sched: sfq: allow divisor to be a variable
Date: Thu, 20 Jan 2011 11:17:16 +0100	[thread overview]
Message-ID: <1295518636.2825.4.camel@edumazet-laptop> (raw)
In-Reply-To: <1295517052.2733.14.camel@edumazet-laptop>

Le jeudi 20 janvier 2011 à 10:50 +0100, Eric Dumazet a écrit :
> SFQ currently uses a 1024 slots hash table, and its internal structure
> (sfq_sched_data) allocation needs order-1 page on x86_64
> 
> Allow tc command to specify a divisor value (hash table size), between 1
> and 65536.
> If no value is provided, assume the 1024 default size.
> 
> This allows admins to setup smaller (or bigger) SFQ for specific needs.
> 
> This also brings back sfq_sched_data allocations to order-0 ones, saving
> 3KB per SFQ qdisc.
> 
> Jesper uses ~55.000 sfq in one machine, this patch should free 165 MB of
> memory.

Arg, sorry for the double post, I had a tg3 failure on my machine.

Please disregard this copy.



  reply	other threads:[~2011-01-20 10:17 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-20  9:50 [PATCH net-next-2.6] net_sched: sfq: allow divisor to be a variable Eric Dumazet
2011-01-20 10:17 ` Eric Dumazet [this message]
2011-01-20 13:48   ` [PATCH net-next-2.6] net_sched: RCU conversion of stab Eric Dumazet
2011-01-20 15:01     ` Patrick McHardy
2011-01-20 16:39       ` Eric Dumazet
2011-01-20 15:27     ` [PATCH net-next-2.6] net_sched: move TCQ_F_THROTTLED flag Eric Dumazet
2011-01-21  0:56       ` David Miller
2011-01-21 11:04       ` [PATCH net-next-2.6] net_sched: TCQ_F_CAN_BYPASS generalization Eric Dumazet
2011-01-22  0:27         ` David Miller
2011-01-21  0:56     ` [PATCH net-next-2.6] net_sched: RCU conversion of stab David Miller

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