netdev - Re: [PATCH v6] net: batch skb dequeueing from softnet input_pkt

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Message-ID: <20100502092020.GA9655@gargoyle.fritz.box>
Date:	Sun, 2 May 2010 11:20:20 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	David Miller <davem@...emloft.net>, hadi@...erus.ca,
	xiaosuo@...il.com, therbert@...gle.com, shemminger@...tta.com,
	netdev@...r.kernel.org, lenb@...nel.org, arjan@...radead.org
Subject: Re: [PATCH v6] net: batch skb dequeueing from softnet
	input_pkt_queue

> I tried it on the right spot (since my bench was only doing recvmsg()
> calls, I had to patch wait_for_packet() in net/core/datagram.c
> 
> udp_recvmsg -> __skb_recv_datagram -> wait_for_packet ->
> schedule_timeout
> 
> Unfortunatly, using io_schedule_timeout() did not solve the problem.

Hmm, too bad. Weird.

> 
> Tell me if you need some traces or something.

I'll try to reproduce it and see what I can do.

-Andi

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