From: Benjamin LaHaise <bcrl@redhat.com>
To: Hyochang Nam <cannon@postech.ac.kr>
Cc: netdev@oss.sgi.com
Subject: Re: [Question] SMP for TCP/IP Stack
Date: Tue, 24 Sep 2002 22:35:01 -0400 [thread overview]
Message-ID: <20020924223501.K2531@redhat.com> (raw)
In-Reply-To: <20020925112731.A19934@toad.postech.ac.kr>; from cannon@postech.ac.kr on Wed, Sep 25, 2002 at 11:27:31AM +0900
Have you made sure each nic is on a separate interrrupt and that those
interrupts are bound to different cpus?
-ben
On Wed, Sep 25, 2002 at 11:27:31AM +0900, Hyochang Nam wrote:
>
> Can Linux Kernel 2.4.X handle two IP Packets at the same time
> in a SMP machine which has two CPUs?
> I have a SMP machine which equips two Intel Xeon CPUs and two
> Intel Gigabit Network Cards. When I sent small IP Packets
> to the machine, most of packets are dropped. When I watch
> CPU utlization with TOP program, only one CPU shows high value
> but the other shows much low value, ie. 10% CPU utlization.
> My test shows current IP Stack in Linux Kernel cannot provide
> SMP Processing properly. But, some articles said Linux Kernel 2.4
> gives true SMP processing. What do you think my problem is?
>
> Best regards,
>
> Hyochang Nam
>
--
GMS rules.
next prev parent reply other threads:[~2002-09-25 2:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-25 2:27 [Question] SMP for TCP/IP Stack Hyochang Nam
2002-09-25 2:35 ` Benjamin LaHaise [this message]
2002-09-25 3:11 ` Ben Greear
2002-09-25 19:32 ` Nivedita Singhvi
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=20020924223501.K2531@redhat.com \
--to=bcrl@redhat.com \
--cc=cannon@postech.ac.kr \
--cc=netdev@oss.sgi.com \
/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.