linux-kernel - Re: Syslets, Threadlets, generic AIO support, v6

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Message-ID: <20070530072617.GB3077@elte.hu>
Date:	Wed, 30 May 2007 09:26:17 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Zach Brown <zach.brown@...cle.com>
Cc:	Jeff Garzik <jeff@...zik.org>, linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@....com.au>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Ulrich Drepper <drepper@...hat.com>,
	Evgeniy Polyakov <johnpol@....mipt.ru>,
	"David S. Miller" <davem@...emloft.net>,
	Suparna Bhattacharya <suparna@...ibm.com>,
	Davide Libenzi <davidel@...ilserver.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: Syslets, Threadlets, generic AIO support, v6


* Zach Brown <zach.brown@...cle.com> wrote:

> > Having async request and response rings would be quite useful, and 
> > most closely match what is going on under the hood in the kernel and 
> > hardware.
> 
> Yeah, but I have lots of competing thoughts about this.

note that async request and response rings are implemented already in 
essence: that's how FIO uses syslets. The linked list of syslet atoms is 
the 'request ring' (it's just that 'ring' is not a hard-enforced data 
structure - you can use other request formats too), and the completion 
ring is the 'response ring'.

	Ingo
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