linux-kernel - Re: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3

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Message-ID: <Pine.LNX.4.64.0703020921430.1977@alien.or.mcafeemobile.com>
Date:	Fri, 2 Mar 2007 09:28:10 -0800 (PST)
From:	Davide Libenzi <davidel@...ilserver.org>
To:	Evgeniy Polyakov <johnpol@....mipt.ru>
cc:	Ingo Molnar <mingo@...e.hu>, Pavel Machek <pavel@....cz>,
	Theodore Tso <tytso@....edu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ulrich Drepper <drepper@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.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>,
	Zach Brown <zach.brown@...cle.com>,
	"David S. Miller" <davem@...emloft.net>,
	Suparna Bhattacharya <suparna@...ibm.com>,
	Jens Axboe <jens.axboe@...cle.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3

On Fri, 2 Mar 2007, Evgeniy Polyakov wrote:

> do we really want to have per process signalfs, timerfs and so on - each 
> simple structure must be bound to a file, which becomes too cost.

I may be old school, but if you ask me, and if you *really* want those 
events, yes. Reason? Unix's everything-is-a-file rule, and being able to 
use them with *existing* POSIX poll/select. Remember, not every app 
requires huge scalability efforts, so working with simpler and familiar 
APIs is always welcome.
The *only* thing that was not practical to have as fd, was block requests. 
But maybe threadlets/syslets will handle those just fine, and close the gap.



- Davide


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