________________________________________
From: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com>
Sent: Friday, May 3, 2019 6:27 AM
To: Jakub Grajciar; Ferruh Yigit; dev@dpdk.org; Honnappa Nagarahalli
Cc: nd; nd
Subject: RE: [dpdk-dev] [RFC v5] /net: memory interface (memif)
> On 3/22/2019 11:57 AM, Jakub Grajciar wrote:
> > Memory interface (memif), provides high performance packet transfer
> > over shared memory.
> >
> > Signed-off-by: Jakub Grajciar <jgraj...@cisco.com>
>
<...>
> With that in mind, I believe that 23Mpps is fine performance. No
> performance target is
> defined, the goal is to be as fast as possible.
Use of C11 atomics have proven to provide better performance on weakly ordered
architectures (at least on Arm). IMO, C11 atomics should be used to implement
the fast path functions at least. This ensures optimal performance on all
supported architectures in DPDK.
Atomics are not required by memif driver.
