On Sun, Jun 12, 2016 at 02:29:42PM +, Jianfeng Tan wrote:
> Compile DPDK with clang, below line in virtio_rxtx.c could be
> optimized with four "VMOVAPS ymm, m256".
> memset(>fake_mbuf, 0, sizeof(rxvq->fake_mbuf));
>
> This instruction requires memory address is 32-byte aligned.
> Or, it
i
> > Subject: Re: [dpdk-dev] [PATCH] virtio: fix allocating virtnet_rx not mem
> > aligned
> >
> > On Mon, Jun 13, 2016 at 05:21:01PM +0800, Yuanhan Liu wrote:
> > > On Sun, Jun 12, 2016 at 02:29:42PM +, Jianfeng Tan wrote:
> > > > Compile DPDK with
On 6/13/2016 5:21 PM, Yuanhan Liu wrote:
> On Sun, Jun 12, 2016 at 02:29:42PM +, Jianfeng Tan wrote:
>> Compile DPDK with clang, below line in virtio_rxtx.c could be
>> optimized with four "VMOVAPS ymm, m256".
>>memset(>fake_mbuf, 0, sizeof(rxvq->fake_mbuf));
>>
>> This instruction
On Mon, Jun 13, 2016 at 05:21:01PM +0800, Yuanhan Liu wrote:
> On Sun, Jun 12, 2016 at 02:29:42PM +, Jianfeng Tan wrote:
> > Compile DPDK with clang, below line in virtio_rxtx.c could be
> > optimized with four "VMOVAPS ymm, m256".
> > memset(>fake_mbuf, 0, sizeof(rxvq->fake_mbuf));
> >
> >
On Sun, Jun 12, 2016 at 02:29:42PM +, Jianfeng Tan wrote:
> Compile DPDK with clang, below line in virtio_rxtx.c could be
> optimized with four "VMOVAPS ymm, m256".
> memset(>fake_mbuf, 0, sizeof(rxvq->fake_mbuf));
>
> This instruction requires memory address is 32-byte aligned.
> Or, it
> -Original Message-
> From: Yuanhan Liu [mailto:yuanhan.liu at linux.intel.com]
> Sent: Monday, June 13, 2016 5:52 PM
> To: Tan, Jianfeng
> Cc: dev at dpdk.org; Xie, Huawei
> Subject: Re: [dpdk-dev] [PATCH] virtio: fix allocating virtnet_rx not mem
> aligned
>
Compile DPDK with clang, below line in virtio_rxtx.c could be
optimized with four "VMOVAPS ymm, m256".
memset(>fake_mbuf, 0, sizeof(rxvq->fake_mbuf));
This instruction requires memory address is 32-byte aligned.
Or, it leads to segfault. Although only tested with Clang 3.6.0,
it can be
7 matches
Mail list logo
