-----Original Message-----
From: Thomas Monjalon [mailto:thomas.monjalon@6wind.com]
Sent: Tuesday, January 3, 2017 4:41 AM
To: Wang, Zhihong <redacted>; Ravi Kerur
[off-list ref]
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v1 2/2] Test cases for rte_memcmp
functions

2016-06-07 11:09, Wang, Zhihong:

quoted

From: Ravi Kerur [mailto:rkerur@gmail.com]

quoted

Zhilong, Thomas,

If there is enough interest within DPDK community I can work on adding

support

quoted

quoted

for 'unaligned access' and 'test cases' for it. Please let me know either

way.

quoted

Hi Ravi,

This rte_memcmp is proved with better performance than glibc's in aligned
cases, I think it has good value to DPDK lib.

Though we don't have memcmp in critical pmd data path, it offers a better
choice for applications who do.

Re-thinking about this series, could it be some values to have a rte_memcmp
implementation?

I think this series (rte_memcmp included) could help:

 1. Potentially better performance in hot paths.

 2. Agile for tuning.

 3. Avoid performance complications -- unusual but possible,
    like the glibc memset issue I met while working on vhost
    enqueue.

What is the value compared to glibc one? Why not working on glibc?

As to working on glibc, wider design consideration and test
coverage might be needed, and we'll face different release
cycles, can we have the same agility? Also working with old
glibc could be a problem.