From: Neil Horman <nhorman@tuxdriver.com>
To: zhihong.wang@intel.com
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 0/4] DPDK memcpy optimization
Date: Mon, 19 Jan 2015 08:02:21 -0500 [thread overview]
Message-ID: <20150119130221.GB21790@hmsreliant.think-freely.org> (raw)
In-Reply-To: <1421632414-10027-1-git-send-email-zhihong.wang@intel.com>
On Mon, Jan 19, 2015 at 09:53:30AM +0800, zhihong.wang@intel.com wrote:
> This patch set optimizes memcpy for DPDK for both SSE and AVX platforms.
> It also extends memcpy test coverage with unaligned cases and more test points.
>
> Optimization techniques are summarized below:
>
> 1. Utilize full cache bandwidth
>
> 2. Enforce aligned stores
>
> 3. Apply load address alignment based on architecture features
>
> 4. Make load/store address available as early as possible
>
> 5. General optimization techniques like inlining, branch reducing, prefetch pattern access
>
> Zhihong Wang (4):
> Disabled VTA for memcpy test in app/test/Makefile
> Removed unnecessary test cases in test_memcpy.c
> Extended test coverage in test_memcpy_perf.c
> Optimized memcpy in arch/x86/rte_memcpy.h for both SSE and AVX
> platforms
>
> app/test/Makefile | 6 +
> app/test/test_memcpy.c | 52 +-
> app/test/test_memcpy_perf.c | 238 +++++---
> .../common/include/arch/x86/rte_memcpy.h | 664 +++++++++++++++------
> 4 files changed, 656 insertions(+), 304 deletions(-)
>
> --
> 1.9.3
>
>
Are you able to compile this with gcc 4.9.2? The compilation of
test_memcpy_perf is taking forever for me. It appears hung.
Neil
next prev parent reply other threads:[~2015-01-19 13:02 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-19 1:53 zhihong.wang
2015-01-19 1:53 ` [dpdk-dev] [PATCH 1/4] app/test: Disabled VTA for memcpy test in app/test/Makefile zhihong.wang
2015-01-19 1:53 ` [dpdk-dev] [PATCH 2/4] app/test: Removed unnecessary test cases in test_memcpy.c zhihong.wang
2015-01-19 1:53 ` [dpdk-dev] [PATCH 3/4] app/test: Extended test coverage in test_memcpy_perf.c zhihong.wang
2015-01-19 1:53 ` [dpdk-dev] [PATCH 4/4] lib/librte_eal: Optimized memcpy in arch/x86/rte_memcpy.h for both SSE and AVX platforms zhihong.wang
2015-01-20 17:15 ` Stephen Hemminger
2015-01-20 19:16 ` Neil Horman
2015-01-21 3:18 ` Wang, Zhihong
2015-01-25 20:02 ` Jim Thompson
2015-01-26 14:43 ` Wodkowski, PawelX
2015-01-27 5:12 ` Wang, Zhihong
2015-01-19 13:02 ` Neil Horman [this message]
2015-01-20 3:01 ` [dpdk-dev] [PATCH 0/4] DPDK memcpy optimization Wang, Zhihong
2015-01-20 15:11 ` Neil Horman
2015-01-20 16:14 ` Bruce Richardson
2015-01-21 3:44 ` Wang, Zhihong
2015-01-21 11:40 ` Bruce Richardson
2015-01-21 12:02 ` Ananyev, Konstantin
2015-01-21 12:38 ` Neil Horman
2015-01-23 3:26 ` Wang, Zhihong
2015-01-21 12:36 ` Marc Sune
2015-01-21 13:02 ` Bruce Richardson
2015-01-21 13:21 ` Marc Sune
2015-01-21 13:26 ` Bruce Richardson
2015-01-21 19:49 ` Stephen Hemminger
2015-01-21 20:54 ` Neil Horman
2015-01-21 21:25 ` Jim Thompson
2015-01-22 0:53 ` Stephen Hemminger
2015-01-22 9:06 ` Luke Gorrie
2015-01-22 13:29 ` Jay Rolette
2015-01-22 18:27 ` Luke Gorrie
2015-01-22 19:36 ` Jay Rolette
2015-01-22 18:21 ` EDMISON, Kelvin (Kelvin)
2015-01-27 8:22 ` Wang, Zhihong
2015-01-28 21:48 ` EDMISON, Kelvin (Kelvin)
2015-01-29 1:53 ` Wang, Zhihong
2015-01-23 6:52 ` Wang, Zhihong
2015-01-26 18:29 ` Ananyev, Konstantin
2015-01-27 1:42 ` Wang, Zhihong
2015-01-27 11:30 ` Ananyev, Konstantin
2015-01-27 12:19 ` Ananyev, Konstantin
2015-01-28 2:06 ` Wang, Zhihong
2015-01-25 14:50 ` Luke Gorrie
2015-01-26 1:30 ` Wang, Zhihong
2015-01-26 8:03 ` Luke Gorrie
2015-01-27 7:19 ` Wang, Zhihong
2015-01-27 13:57 ` [dpdk-dev] [snabb-devel] " Luke Gorrie
2015-01-29 3:42 ` [dpdk-dev] " Fu, JingguoX
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=20150119130221.GB21790@hmsreliant.think-freely.org \
--to=nhorman@tuxdriver.com \
--cc=dev@dpdk.org \
--cc=zhihong.wang@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).