From: Zacco <zacco@fw.hu>
To: Andi Kleen <andi@firstfloor.org>, baruch@ev-en.org
Cc: netdev@vger.kernel.org
Subject: Re: many sockets, slow sendto
Date: Tue, 06 Mar 2007 22:28:02 +0100 [thread overview]
Message-ID: <45EDDCE2.9060609@fw.hu> (raw)
In-Reply-To: <p73bqj6b2gk.fsf@bingen.suse.de>
Hi,
Thx a lot you for the advice, I'll have a try.
And sorry for the stupid webmail, I will not use it again.
Zacco
Andi Kleen wrote:
> Zaccomer Lajos <zacco@fw.hu> writes:
>
>
>> I'm playing around with a simulation, in which many thousands of IP
>>
>> addresses (on interface aliases) are used to send/receive TCP/UDP
>>
>
> Something seems to be wrong with your emailer. It adds a empty
> line between each real line.
>
>
>> packets. I noticed that the time of send/sendto increased linearly
>>
>> with the number of file descriptors, and I found it rather strange.
>>
>
> Yes that is strange. I would suggest you use oprofile to identify which
> parts of the kernel use the CPU time with many descriptors.
>
> -Andi
>
>
prev parent reply other threads:[~2007-03-06 21:28 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-06 15:08 many sockets, slow sendto Zaccomer Lajos
2007-03-06 18:20 ` Baruch Even
2007-03-19 23:10 ` Zacco
2007-03-19 23:16 ` David Miller
2007-03-20 21:59 ` Zacco
2007-03-20 22:48 ` Eric Dumazet
2007-03-21 21:53 ` Zacco
2007-03-21 22:24 ` Eric Dumazet
2007-03-21 23:26 ` Eric Dumazet
2007-03-22 1:14 ` David Miller
2007-03-21 22:12 ` Eric Dumazet
2007-03-22 1:15 ` David Miller
2007-03-22 6:43 ` Eric Dumazet
2007-03-29 19:24 ` Zacco
2007-03-30 13:10 ` Eric Dumazet
2007-04-22 12:34 ` Zacco
2007-04-30 7:26 ` David Miller
2007-04-30 10:56 ` YOSHIFUJI Hideaki / 吉藤英明
2007-04-30 12:47 ` Eric Dumazet
2007-04-30 19:43 ` YOSHIFUJI Hideaki / 吉藤英明
2007-04-30 19:59 ` Eric Dumazet
2007-03-06 19:23 ` Andi Kleen
2007-03-06 21:28 ` Zacco [this message]
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