[dpdk-dev] [memnic PATCH v2 0/7] MEMNIC PMD performance improvement

Wiles, Roger Keith keith.wiles at windriver.com
Tue Sep 30 17:07:55 CEST 2014


Third the motion :-)

On Sep 30, 2014, at 9:37 AM, Venkatesan, Venky <venky.venkatesan at intel.com> wrote:

> 
> On 9/30/2014 7:29 AM, Neil Horman wrote:
>> On Tue, Sep 30, 2014 at 11:10:45AM +0000, Hiroshi Shimamoto wrote:
>>> From: Hiroshi Shimamoto <h-shimamoto at ct.jp.nec.com>
>>> 
>>> This patchset improves MEMNIC PMD performance.
>>> 
>>> The first patch introduces a new benchmark test run in guest,
>>> and will be used to evaluate the following patch effects.
>>> 
>>> This patchset improves the throughput results of memnic-tester.
>>> Using Xeon E5-2697 v2 @ 2.70GHz, 4 vCPU.
>>>  size |  before  |  after
>>>    64 | 4.18Mpps | 5.83Mpps
>>>   128 | 3.85Mpps | 5.71Mpps
>>>   256 | 4.01Mpps | 5.40Mpps
>>>   512 | 3.52Mpps | 4.64Mpps
>>>  1024 | 3.18Mpps | 3.68Mpps
>>>  1280 | 2.86Mpps | 3.17Mpps
>>>  1518 | 2.59Mpps | 2.90Mpps
>>> 
>>> Hiroshi Shimamoto (7):
>>>   guest: memnic-tester: PMD benchmark in guest
>>>   pmd: remove needless assignment
>>>   pmd: use helper macros
>>>   pmd: use compiler barrier
>>>   pmd: packet receiving optimization with prefetch
>>>   pmd: add branch hint in recv/xmit
>>>   pmd: burst mbuf freeing in xmit
>>> 
>>>  guest/Makefile        |  20 ++++
>>>  guest/README.rst      |  93 +++++++++++++++++
>>>  guest/memnic-tester.c | 281 ++++++++++++++++++++++++++++++++++++++++++++++++++
>>>  pmd/pmd_memnic.c      |  45 ++++----
>>>  4 files changed, 417 insertions(+), 22 deletions(-)
>>>  create mode 100644 guest/Makefile
>>>  create mode 100644 guest/README.rst
>>>  create mode 100644 guest/memnic-tester.c
>>> 
>>> -- 
>>> 1.8.3.1
>>> 
>>> 
>> Can this PMD please be merged into the DPDK core. Having a single list for
>> multiple git trees is really just frustrating.
>> 
>> Neil
>> 
> Second that motion. This would be useful to have in the DPDK core
> 
> -Venky

Keith Wiles, Principal Technologist with CTO office, Wind River mobile 972-213-5533



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