linux-kernel - Re: [PATCH v3 net-next 0/4] net: low latency Ethernet device polling

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Date:	Tue, 21 May 2013 19:15:15 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Eliezer Tamir <eliezer.tamir@...ux.intel.com>
CC:	Alex Rosenbaum <alexr@...lanox.com>,
	Dave Miller <davem@...emloft.net>,
	<linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Don Skidmore <donald.c.skidmore@...el.com>,
	<e1000-devel@...ts.sourceforge.net>,
	Willem de Bruijn <willemb@...gle.com>,
	Andi Kleen <andi@...stfloor.org>, HPA <hpa@...or.com>,
	Eliezer Tamir <eliezer@...ir.org.il>
Subject: Re: [PATCH v3 net-next 0/4] net: low latency Ethernet device polling

On Tue, 2013-05-21 at 15:29 +0300, Eliezer Tamir wrote:
> Many of the questions you asked are covered in our RFC cover letter, but 
> I will touch them briefly
> 
> On 21/05/2013 15:06, Alex Rosenbaum wrote:
> > 1. It seem this patch does not cover epoll/select and such IO muxing APIs?
> 
> We are thinking about how to implement epoll support as one of the next 
> steps.
>
> What benchmarks are you using to test poll/select/epoll?
[...]

I raised this issue back at Plumbers and I thought Jesse said poll() was
covered.  It's likely to be a bit of a toy without that.  Also, UDP?

Solarflare uses a wide range of benchmarks.  Of the publicly available
applications, I believe Ixia Chariot uses (or can use) epoll.

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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