From: Jamal Hadi Salim <jhs@mojatatu.com>
To: Eric Dumazet <eric.dumazet@gmail.com>,
sowmini varadhan <sowmini05@gmail.com>
Cc: "Niels Möller" <nisse@southpole.se>,
netdev <netdev@vger.kernel.org>,
"Jonas Bonn" <jonas@southpole.se>
Subject: Re: What's the right way to use a *large* number of source addresses?
Date: Sat, 24 May 2014 08:06:41 -0400 [thread overview]
Message-ID: <53808B51.4050308@mojatatu.com> (raw)
In-Reply-To: <1400854458.5367.200.camel@edumazet-glaptop2.roam.corp.google.com>
On 05/23/14 10:14, Eric Dumazet wrote:
> Use the batch mode, and it will be much faster than ifconfig, as
> ifconfig does not support this mode (you need one fork()/exec() per IP
> address)
>
> ip -batch filename
>
The address dumping algorithm is a very likely contributor as well.
It tries to remember indices and then skips on the next iteration
all the way to where it left off.... has never been a big deal until
someone tries a substantial number of addresses.
cheers,
jamal
next prev parent reply other threads:[~2014-05-24 12:06 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-23 9:38 What's the right way to use a *large* number of source addresses? Niels Möller
2014-05-23 10:11 ` Florian Westphal
2014-05-23 10:49 ` Lukas Tribus
2014-05-23 12:26 ` Niels Möller
2014-05-23 14:12 ` Niels Möller
2014-05-23 12:53 ` sowmini varadhan
2014-05-23 14:14 ` Eric Dumazet
2014-05-24 12:06 ` Jamal Hadi Salim [this message]
2014-05-23 22:39 ` Cong Wang
2014-05-26 6:39 ` Niels Möller
2014-05-24 11:58 ` Jamal Hadi Salim
2014-05-24 14:44 ` Richard Weinberger
2014-05-24 15:13 ` Jamal Hadi Salim
2014-05-24 16:02 ` Richard Weinberger
2014-05-24 17:54 ` David Miller
2014-05-24 18:30 ` Jamal Hadi Salim
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=53808B51.4050308@mojatatu.com \
--to=jhs@mojatatu.com \
--cc=eric.dumazet@gmail.com \
--cc=jonas@southpole.se \
--cc=netdev@vger.kernel.org \
--cc=nisse@southpole.se \
--cc=sowmini05@gmail.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.