[dpdk-dev] Minimum Supported x86 microarchitecture
Bruce Richardson
bruce.richardson at intel.com
Wed Apr 15 18:05:27 CEST 2015
On Wed, Apr 15, 2015 at 03:09:39PM +0000, Kavanagh, Mark B wrote:
> Hi,
>
> The recent reimplementation of rte_memcpy in DPDK v2.0.0 seems to have a placed an implicit floor on the microarchitecture/Instruction set supported by DPDK.
>
> For example, I can't compile head of OVS against DPDK 2.0 with gcc without passing the 'msse3' flag; this points to an implicit minimum supported CPU of 'core2'. More discussion on same is available here: http://openvswitch.org/pipermail/dev/2015-April/053523.html
>
> Can anyone confirm or deny this, and is/should it be documented?
>
> Thanks in advance,
> Mark
SSE3 is the minimum necessary. However, I believe all x86_64 cpus have at least
SSE3 support, so this should only be a problem with 32-bit builds. Is this the
case for you?
/Bruce
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