Re: [dpdk-dev] [PATCH] net/mlx5: revert mbuf address calculation for x86

2019-04-01 Thread Shahaf Shuler
Thursday, March 28, 2019 12:21 AM, Yongseok Koh: > > Cc: dev ; dpdk stable ; Kevin Traynor > > Subject: Re: [dpdk-dev] [PATCH] net/mlx5: revert mbuf address calculation > for x86 > > > > On Mar 27, 2019, at 4:51 AM, Kevin Traynor > wrote: > > > &g

Re: [dpdk-dev] [PATCH] net/mlx5: revert mbuf address calculation for x86

2019-03-27 Thread Yongseok Koh
> On Mar 27, 2019, at 4:51 AM, Kevin Traynor wrote: > > On 25/03/2019 19:13, Yongseok Koh wrote: >> When replenishing mbufs on Rx, buffer address (mbuf->buf_addr) should be >> loaded. non-x86 processors (mostly RISC such as ARM and Power) are more >> vulnerable to load stall. For x86, reducing

Re: [dpdk-dev] [PATCH] net/mlx5: revert mbuf address calculation for x86

2019-03-27 Thread Kevin Traynor
On 25/03/2019 19:13, Yongseok Koh wrote: > When replenishing mbufs on Rx, buffer address (mbuf->buf_addr) should be > loaded. non-x86 processors (mostly RISC such as ARM and Power) are more > vulnerable to load stall. For x86, reducing the number of instructions > seems to matter most. > > For x86