From: zhou rui <zhourui.cn@gmail.com>
To: netdev@vger.kernel.org
Subject: profile my proto_hook.function
Date: Tue, 12 Apr 2011 22:00:24 +0800 [thread overview]
Message-ID: <BANLkTi==HczThr66Yr0-Rm-RkEUw44sqrg@mail.gmail.com> (raw)
hi
I used a prot_hook(added via dev_add_pack,protocol=ETH_P_ALL) to
process packets in kernel part.but the performance was bad
ksoftirqd used almost 100% cpu on my 1G nic(intel e1000,w/o RSS) XEON
5400 hypertown machine.
looks my packet processing is too slow. but how to profile this?
i.e. how many CPU resources used in softirq and normal kernel protocol
stack(tcp/ip,etc)
and how many used in my packet processing function?
and any idea to improve it?how about moving the processing function to driver?
thanks
rui
next reply other threads:[~2011-04-12 14:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-12 14:00 zhou rui [this message]
2011-04-12 14:03 ` profile my proto_hook.function Eric Dumazet
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='BANLkTi==HczThr66Yr0-Rm-RkEUw44sqrg@mail.gmail.com' \
--to=zhourui.cn@gmail.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