All of lore.kernel.org
 help / color / mirror / Atom feed
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
>
>   


      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]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=45EDDCE2.9060609@fw.hu \
    --to=zacco@fw.hu \
    --cc=andi@firstfloor.org \
    --cc=baruch@ev-en.org \
    --cc=netdev@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.