> -Original Message-
> From: Yuanhan Liu [mailto:yuanhan@linux.intel.com]
> Sent: Monday, December 5, 2016 6:37 PM
> To: Wang, Zhihong
> Cc: dev@dpdk.org; Thomas Monjalon
> Subject: Re: [PATCH] vhost: optimize vhost memcpy
>
> On Mon, Dec 05, 2016 at 10:27:00AM +, Wang, Zhihong
On Mon, Dec 05, 2016 at 10:27:00AM +, Wang, Zhihong wrote:
> > I like this function a lot, since it's really simple and straightforward!
> > Moreover, it performs better.
> >
> > But, I don't quite like how this function is proposed:
> >
> > - rte_movX are more like internal help functions th
> I like this function a lot, since it's really simple and straightforward!
> Moreover, it performs better.
>
> But, I don't quite like how this function is proposed:
>
> - rte_movX are more like internal help functions that should be used only
> in corresponding rte_memcpy.h file.
>
> - It's
On Thu, Dec 01, 2016 at 08:19:42PM -0500, Zhihong Wang wrote:
> This patch optimizes Vhost performance for large packets when the
> Mergeable Rx buffer feature is enabled. It introduces a dedicated
> memcpy function for vhost enqueue/dequeue to replace rte_memcpy.
>
> The reason is that rte_memcpy
2016-12-01 20:19, Zhihong Wang:
> Up to 20% gain can be achieved by this patch for PVP traffic.
Really nice!
This patch optimizes Vhost performance for large packets when the
Mergeable Rx buffer feature is enabled. It introduces a dedicated
memcpy function for vhost enqueue/dequeue to replace rte_memcpy.
The reason is that rte_memcpy is for general cases, it handles
unaligned copies and make store aligne
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