From: Avi Kivity <avi@redhat.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>,
netdev <netdev@vger.kernel.org>,
Arnaldo Carvalho de Melo <acme@infradead.org>,
Ben Hutchings <bhutchings@solarflare.com>,
Hagen Paul Pfeifer <hagen@jauu.net>
Subject: Re: [PATCH v2] net: filter: Just In Time compiler
Date: Thu, 14 Apr 2011 17:40:03 +0300 [thread overview]
Message-ID: <4DA70743.1050106@redhat.com> (raw)
In-Reply-To: <1301838968.2837.200.camel@edumazet-laptop>
On 04/03/2011 04:56 PM, Eric Dumazet wrote:
> In order to speedup packet filtering, here is an implementation of a JIT
> compiler for x86_64
>
Have you considered putting the compiler in userspace?
You could have a trusted compile server waiting on a pipe and compiling
programs sent to it by the kernel, sending the results back down. Use
the interpreter until the compiler returns; if it doesn't, use the
interpreter forever.
The upside is that you can use established optimizing compilers like
LLVM or GCC, which already support more target architectures. It may
not matter much for something simple like bpf, but other VMs may be a
lot more complicated.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-04-14 14:40 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-02 22:28 [PATCH v1] net: filter: Just In Time compiler Eric Dumazet
2011-04-02 22:50 ` Hagen Paul Pfeifer
2011-04-03 5:41 ` Eric Dumazet
2011-04-02 22:53 ` Ben Hutchings
2011-04-03 13:56 ` [PATCH v2] " Eric Dumazet
2011-04-04 5:07 ` David Miller
2011-04-04 5:21 ` Eric Dumazet
2011-04-14 14:40 ` Avi Kivity [this message]
2011-04-14 14:55 ` Hagen Paul Pfeifer
2011-04-14 15:41 ` Avi Kivity
2011-04-14 15:45 ` Eric Dumazet
2011-04-14 15:53 ` Avi Kivity
2011-04-14 16:05 ` Eric Dumazet
2011-04-20 7:41 ` Avi Kivity
2011-04-20 8:07 ` Eric Dumazet
2011-04-20 8:14 ` David Miller
2011-04-20 8:27 ` Hagen Paul Pfeifer
2011-04-20 19:27 ` Eric Dumazet
2011-04-28 6:05 ` David Miller
2011-04-20 8:12 ` David Miller
2011-04-14 15:40 ` Eric Dumazet
2011-04-14 15:45 ` Avi Kivity
2011-04-03 5:43 ` [PATCH v1] " David Miller
2011-04-03 9:04 ` 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=4DA70743.1050106@redhat.com \
--to=avi@redhat.com \
--cc=acme@infradead.org \
--cc=bhutchings@solarflare.com \
--cc=davem@davemloft.net \
--cc=eric.dumazet@gmail.com \
--cc=hagen@jauu.net \
--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).