From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Subject: Re: [PATCH v3] mempool: replace c memcpy code semantics
 with optimized rte_memcpy
Date: Tue, 5 Jul 2016 18:43:57 +0530
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Cc: Ferruh Yigit <ferruh.yigit@intel.com>, Thomas Monjalon
 <thomas.monjalon@6wind.com>, <dev@dpdk.org>, <olivier.matz@6wind.com>, Pablo
 de Lara <pablo.de.lara.guarch@intel.com>
To: Yuanhan Liu <yuanhan.liu@linux.intel.com>
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On Tue, Jul 05, 2016 at 07:32:46PM +0800, Yuanhan Liu wrote:
> On Tue, Jul 05, 2016 at 09:43:03AM +0100, Ferruh Yigit wrote:
> > On 6/30/2016 6:28 PM, Thomas Monjalon wrote:
> > > 2016-06-30 17:46, Jerin Jacob:
> > >> Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
> > >> Acked-by: Olivier Matz <olivier.matz@6wind.com>
> > >=20
> > > Applied, thanks
> > >=20
> >=20
> > Hi Jerin,
> >=20
> > This commit cause a compilation error on target i686-native-linuxapp-=
gcc
> > with gcc6.
>=20
> Besides that, I'm more curious to know have you actually seen any
> performance boost?

let me first address your curiosity,
http://dpdk.org/dev/patchwork/patch/12993/( check the second comment)
http://dpdk.org/ml/archives/dev/2016-June/042701.html

Ferruh,

I have tested on a x86 machine with gcc 6.1. I could n't see any issues
with i686-native-linuxapp-gcc target

Steps following to create gcc 6.1 toolchain
https://sahas.ra.naman.ms/2016/05/31/building-gcc6-1-on-fedora-23/
(removed --disable-multilib to have support for -m32)

=E2=9E=9C [dpdk-master] $ gcc -v
Using built-in specs.
COLLECT_GCC=3Dgcc
COLLECT_LTO_WRAPPER=3D/opt/gcc-6.1.0/libexec/gcc/x86_64-pc-linux-gnu/6.1.=
0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-6.1.0/configure --prefix=3D/opt/gcc-6.1.0
--enable-languages=3Dc,c++ --enable-libmudflap --with-system-zlib
Thread model: posix
gcc version 6.1.0 (GCC)

More over this issue seems like an issue from x86 rte_memcpy implementati=
on.

Jerin