netdev - Re: [net-next-2.6 PATCH] net: netif_set_real_num_rx_queues may cap num_rx

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Message-ID: <1286378626.9417.24.camel@edumazet-laptop>
Date:	Wed, 06 Oct 2010 17:23:46 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Ben Hutchings <bhutchings@...arflare.com>
Cc:	John Fastabend <john.r.fastabend@...el.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"therbert@...gle.com" <therbert@...gle.com>
Subject: Re: [net-next-2.6 PATCH] net: netif_set_real_num_rx_queues may cap
 num_rx_queues at init time

Le mercredi 06 octobre 2010 à 16:07 +0100, Ben Hutchings a écrit :

> The waste of memory is minimal now that we only allocate kobjects for
> real_num_rx_queues.

Thats strange, here with tg3 (and mono queue device) :

0a:04.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5715S
Gigabit Ethernet (rev a3)

grep . /sys/class/net/eth2/queues/rx-*/rps_cpus
/sys/class/net/eth2/queues/rx-0/rps_cpus:00000000
/sys/class/net/eth2/queues/rx-1/rps_cpus:00000000
/sys/class/net/eth2/queues/rx-2/rps_cpus:00000000
/sys/class/net/eth2/queues/rx-3/rps_cpus:00000000
/sys/class/net/eth2/queues/rx-4/rps_cpus:00000000



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