From: David Ahern <dsahern@gmail.com>
To: Solio Sarabia <solio.sarabia@intel.com>,
netdev@vger.kernel.org, davem@daveloft.net,
stephen@networkplumber.org
Cc: kys@microsoft.com, shiny.sebastian@intel.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] net-sysfs: export gso_max_size attribute
Date: Fri, 24 Nov 2017 10:14:51 -0700 [thread overview]
Message-ID: <338121b9-5e71-be85-7faf-02dbba070df3@gmail.com> (raw)
In-Reply-To: <1511397041-27994-1-git-send-email-solio.sarabia@intel.com>
On 11/22/17 5:30 PM, Solio Sarabia wrote:
> The netdevice gso_max_size is exposed to allow users fine-control on
> systems with multiple NICs with different GSO buffer sizes, and where
> the virtual devices like bridge and veth, need to be aware of the GSO
> size of the underlying devices.
>
> In a virtualized environment, setting the right GSO sizes for physical
> and virtual devices makes all TSO work to be on physical NIC, improving
> throughput and reducing CPU util. If virtual devices send buffers
> greater than what NIC supports, it forces host to do TSO for buffers
> exceeding the limit, increasing CPU utilization in host.
>
> Suggested-by: Shiny Sebastian <shiny.sebastian@intel.com>
> Signed-off-by: Solio Sarabia <solio.sarabia@intel.com>
> ---
This should be added to rtnetlink rather than sysfs.
next prev parent reply other threads:[~2017-11-24 17:14 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-23 0:30 Solio Sarabia
2017-11-23 21:48 ` Solio Sarabia
2017-11-24 5:18 ` Stephen Hemminger
2017-11-24 17:14 ` David Ahern [this message]
2017-11-24 18:32 ` Eric Dumazet
2017-11-24 18:43 ` David Ahern
2017-11-24 18:52 ` Eric Dumazet
2017-11-27 21:47 ` Solio Sarabia
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