From: Lance Richardson <lance.richardson@broadcom.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: Ajit Khaparde <ajit.khaparde@broadcom.com>,
Somnath Kotur <somnath.kotur@broadcom.com>,
dev@dpdk.org,
Kalesh Anakkur Purayil <kalesh-anakkur.purayil@broadcom.com>
Subject: Re: [dpdk-dev] [PATCH 07/12] net/bnxt: increase max burst size for vector mode
Date: Fri, 11 Sep 2020 11:38:27 -0400 [thread overview]
Message-ID: <CADyeNEAhEJY9jd8KBzfttL1=_tMguDmVrqwLx2Rho5Q7WnehHA@mail.gmail.com> (raw)
In-Reply-To: <6d731137-affe-7a79-e468-6510edc2a3a4@intel.com>
On Fri, Sep 11, 2020 at 11:19 AM Ferruh Yigit <ferruh.yigit@intel.com> wrote:
>
> On 9/9/2020 4:53 PM, Lance Richardson wrote:
> > Increase the maximum supported burst size for the bnxt vector
> > mode PMD from 32 to 64.
>
> What is the motivation here? Like does it improve the performance? If so in
> which conditions etc.. It would be nice to describe the why & impact.
>
How about this:
net/bnxt: increase max burst size for vector mode
Increase the maximum supported burst size for the bnxt vector
mode PMD from 32 to 64. With larger burst sizes, per-burst
overhead is amortized over more packets, improving overall
performance. For small packets this has been measured to
provide a 4-10% increase in single-core throughput with
testpmd iofwd.
Thanks,
Lance
next prev parent reply other threads:[~2020-09-11 15:38 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-09 15:52 [dpdk-dev] [PATCH 00/12] net/bnxt: vector PMD improvements Lance Richardson
2020-09-09 15:52 ` [dpdk-dev] [PATCH 01/12] net/bnxt: fix burst mode get for Arm Lance Richardson
2020-09-09 15:52 ` [dpdk-dev] [PATCH 02/12] net/bnxt: fix rxq/txq get information Lance Richardson
2020-09-11 14:41 ` Ferruh Yigit
2020-09-18 18:41 ` Lance Richardson
2020-09-21 11:05 ` Ferruh Yigit
2020-09-09 15:52 ` [dpdk-dev] [PATCH 03/12] net/bnxt: use appropriate type for Rx mbuf ring Lance Richardson
2020-09-09 15:52 ` [dpdk-dev] [PATCH 04/12] net/bnxt: require async cq for vector mode Lance Richardson
2020-09-11 15:02 ` Ferruh Yigit
2020-09-11 15:07 ` Lance Richardson
2020-09-09 15:52 ` [dpdk-dev] [PATCH 05/12] net/bnxt: improve support for small ring sizes Lance Richardson
2020-09-14 22:03 ` Ferruh Yigit
2020-09-15 14:12 ` Lance Richardson
2020-09-09 15:52 ` [dpdk-dev] [PATCH 06/12] net/bnxt: use smaller cq when agg ring not needed Lance Richardson
2020-09-09 15:53 ` [dpdk-dev] [PATCH 07/12] net/bnxt: increase max burst size for vector mode Lance Richardson
2020-09-11 15:19 ` Ferruh Yigit
2020-09-11 15:38 ` Lance Richardson [this message]
2020-09-11 15:56 ` Ferruh Yigit
2020-09-09 15:53 ` [dpdk-dev] [PATCH 08/12] net/bnxt: use table-based packet type translation Lance Richardson
2020-09-09 15:53 ` [dpdk-dev] [PATCH 09/12] net/bnxt: table-based handling for ol flags Lance Richardson
2020-09-11 3:42 ` [dpdk-dev] [PATCH 00/12] net/bnxt: vector PMD improvements Ajit Khaparde
2020-09-11 15:58 ` Ferruh Yigit
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