netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Ben Greear <greearb@candelatech.com>
To: netdev <netdev@vger.kernel.org>
Subject: pre-fetching skb for delayed send
Date: Fri, 06 Jul 2012 16:10:40 -0700	[thread overview]
Message-ID: <4FF77070.7040705@candelatech.com> (raw)

Suppose one has a bridge-like thing that may store up packets
for a bit (100+ms) before sending them....

We notice that performance is very good if we can run with (near) zero
delay, but at higher delay, performance goes down significantly when attempting 10G
speeds.  I assume this is because we are sending skbs that are no longer in the cache...

So, is there an easy way to pre-fetch an skb and it's related pages?

Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

             reply	other threads:[~2012-07-06 23:10 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-06 23:10 Ben Greear [this message]
2012-07-06 23:52 ` pre-fetching skb for delayed send Benjamin LaHaise
2012-07-07  4:15   ` Ben Greear
2012-07-07 14:18     ` Benjamin LaHaise

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=4FF77070.7040705@candelatech.com \
    --to=greearb@candelatech.com \
    --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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).