From: Junchang Wang <junchangwang@gmail.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>,
"David S. Miller" <davem@davemloft.net>,
John Fastabend <john.r.fastabend@intel.com>,
Xinan Tang <xinan.tang@intel.com>,
netdev <netdev@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/3] Kernel interfaces for multiqueue aware socket
Date: Thu, 16 Dec 2010 09:52:28 +0800 [thread overview]
Message-ID: <AANLkTikc+QTPH2He=fKgWiRGk=6sn9Phaa259YdkQNix@mail.gmail.com> (raw)
In-Reply-To: <1292446118.2603.11.camel@edumazet-laptop>
On Thu, Dec 16, 2010 at 4:48 AM, Eric Dumazet <eric.dumazet@gmail.com> wrote:
>> With this patch, the user-space receiving speed on a Intel SR1690 server with
>> a single L5640 6-core processor and a single ixgbe-based NIC goes from 0.73Mpps
>> to 4.20Mpps, nearly a linear speedup. A Intel SR1625 server two E5530 4-core
>> processors and a single ixgbe-based NIC goes from 0.80Mpps to 4.6Mpps. We noticed
>> the performance penalty comes from NUMA memory allocation.
>>
>
> ??? please elaborate on these NUMA memory allocations. This should be OK
> after commit 564824b0c52c34692d (net: allocate skbs on local node)
>
Hi Eric,
Commit 564824b0c52c34692d had been used in the experiments, but the problem
remained unsolved.
SLUB was used, and both servers were equipped with 8G physical memory.
Is there any
additional information I can provide?
Thanks.
--
--Junchang
next prev parent reply other threads:[~2010-12-16 1:52 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-15 20:02 [PATCH 0/3] Kernel interfaces for multiqueue aware socket Fenghua Yu
2010-12-15 20:02 ` [PATCH 1/3] " Fenghua Yu
2010-12-15 20:48 ` Eric Dumazet
2010-12-15 20:56 ` Eric Dumazet
2010-12-16 1:14 ` Fenghua Yu
2010-12-16 1:23 ` Stephen Hemminger
2010-12-16 1:28 ` Changli Gao
2010-12-16 2:43 ` Dimitris Michailidis
2010-12-17 6:22 ` Junchang Wang
2010-12-17 6:50 ` Eric Dumazet
2010-12-16 4:44 ` Eric Dumazet
2010-12-17 6:12 ` Junchang Wang
2010-12-16 1:52 ` Junchang Wang [this message]
2010-12-16 5:00 ` Eric Dumazet
2010-12-17 6:15 ` Junchang Wang
2010-12-15 20:52 ` John Fastabend
2010-12-15 20:02 ` [PATCH 2/3] net/packet/af_packet.c: implement multiqueue aware socket in af_apcket Fenghua Yu
2010-12-15 20:02 ` [PATCH 3/3] drivers/net/ixgbe/ixgbe_main.c: get tx queue mapping specified in socket Fenghua Yu
2010-12-15 20:54 ` John Fastabend
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='AANLkTikc+QTPH2He=fKgWiRGk=6sn9Phaa259YdkQNix@mail.gmail.com' \
--to=junchangwang@gmail.com \
--cc=davem@davemloft.net \
--cc=eric.dumazet@gmail.com \
--cc=fenghua.yu@intel.com \
--cc=john.r.fastabend@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=xinan.tang@intel.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 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).