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

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Message-Id: <20070222.091735.30182079.davem@davemloft.net>
Date:	Thu, 22 Feb 2007 09:17:35 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	mingo@...e.hu
Cc:	johnpol@....mipt.ru, arjan@...radead.org, drepper@...hat.com,
	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
	hch@...radead.org, akpm@....com.au, alan@...rguk.ukuu.org.uk,
	zach.brown@...cle.com, suparna@...ibm.com, davidel@...ilserver.org,
	jens.axboe@...cle.com, tglx@...utronix.de
Subject: Re: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3

From: Ingo Molnar <mingo@...e.hu>
Date: Thu, 22 Feb 2007 16:15:09 +0100

> furthermore, in a real webserver there's a whole lot of other stuff 
> happening too: VFS blocking, mutex/lock blocking, memory pressure 
> blocking, filesystem blocking, etc., etc. Threadlets/syslets cover them 
> /all/ and never hold up the primary context: as long as there's more 
> requests to process, they will be processed. Plus other important 
> networked workloads, like fileservers are typically on fast LANs and 
> those requests are very much a fire-and-forget matter most of the time.

I expect clients of a fileserver to cause the server to block in
places such as tcp_sendmsg() as much if not more so than a webserver
:-)

But yes, it should all be tested, for sure.
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