From: Shahaf Shuler <shahafs@mellanox.com>
To: Adrien Mazarguil <adrien.mazarguil@6wind.com>,
Yongseok Koh <yskoh@mellanox.com>
Cc: "Nélio Laranjeiro" <nelio.laranjeiro@6wind.com>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] net/mlx5: remove excessive data prefetch
Date: Tue, 3 Apr 2018 04:58:35 +0000 [thread overview]
Message-ID: <DB7PR05MB4426426C080654D4BF228372C3A50@DB7PR05MB4426.eurprd05.prod.outlook.com> (raw)
In-Reply-To: <20180313124459.GI3994@6wind.com>
Tuesday, March 13, 2018 2:45 PM, Adrien Mazarguil:
> Subject: Re: [dpdk-dev] [PATCH] net/mlx5: remove excessive data prefetch
>
> On Mon, Mar 12, 2018 at 10:05:45AM -0700, Yongseok Koh wrote:
> > In Enhanced Multi-Packet Send (eMPW), entire packet data is prefetched
> > to LLC if it isn't inlined. Even though this helps reducing jitter
> > when HW fetches data by DMA, this can thresh the LLC with evicting
> precious data.
> > And if the size of queue is large and there are many queues, this
> > might not be effective. Also, if application runs on a remote node
> > from the PCIe link, it may not be helpful and can even cause bad results.
> >
> > Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
>
> Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Applied to next-net-mlx, thanks.
>
> --
> Adrien Mazarguil
> 6WIND
prev parent reply other threads:[~2018-04-03 4:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-12 17:05 Yongseok Koh
2018-03-13 12:44 ` Adrien Mazarguil
2018-04-03 4:58 ` Shahaf Shuler [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=DB7PR05MB4426426C080654D4BF228372C3A50@DB7PR05MB4426.eurprd05.prod.outlook.com \
--to=shahafs@mellanox.com \
--cc=adrien.mazarguil@6wind.com \
--cc=dev@dpdk.org \
--cc=nelio.laranjeiro@6wind.com \
--cc=yskoh@mellanox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).