From: David Miller <davem@davemloft.net>
To: greearb@candelatech.com
Cc: netdev@vger.kernel.org
Subject: Re: [net-next 1/2] qdisc: Allow qdiscs to provide backpressure up the stack.
Date: Thu, 26 Aug 2010 23:11:10 -0700 (PDT) [thread overview]
Message-ID: <20100826.231110.260096663.davem@davemloft.net> (raw)
In-Reply-To: <4C775411.1000302@candelatech.com>
From: Ben Greear <greearb@candelatech.com>
Date: Thu, 26 Aug 2010 22:58:41 -0700
> And if it does that, then something must know how to restart the
> transmit logic.
When SKBs get freed up, space opens up in the socket send buffer,
waking up the process or signalling it from poll() so it can write
more.
pktgen eliminates this whole layer of queueing and signalling, which
is why it continually succeptible this behavior you dislike.
next prev parent reply other threads:[~2010-08-27 6:10 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-25 19:00 [net-next 1/2] qdisc: Allow qdiscs to provide backpressure up the stack Ben Greear
2010-08-25 19:00 ` [net-next 2/2] macvlan: Enable qdisc backoff logic Ben Greear
2010-08-25 19:24 ` Arnd Bergmann
2010-08-25 19:27 ` Ben Greear
2010-08-25 19:38 ` Hagen Paul Pfeifer
2010-08-25 19:49 ` Ben Greear
2010-08-25 19:59 ` Arnd Bergmann
2010-08-25 20:49 ` Ben Greear
2010-08-26 13:55 ` Arnd Bergmann
2010-08-26 15:33 ` Ben Greear
2010-08-26 17:45 ` Ben Greear
2010-08-27 13:16 ` Arnd Bergmann
2010-08-25 20:44 ` [net-next 1/2] qdisc: Allow qdiscs to provide backpressure up the stack Stephen Hemminger
2010-08-25 20:56 ` Ben Greear
2010-08-26 22:59 ` David Miller
2010-08-27 4:14 ` Ben Greear
2010-08-27 4:34 ` David Miller
2010-08-27 5:22 ` Ben Greear
2010-08-27 5:36 ` David Miller
2010-08-27 5:58 ` Ben Greear
2010-08-27 6:11 ` David Miller [this message]
2010-08-27 15:26 ` Ben Greear
2010-08-27 15:59 ` Eric Dumazet
2010-08-27 17:00 ` Ben Greear
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=20100826.231110.260096663.davem@davemloft.net \
--to=davem@davemloft.net \
--cc=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).