From: Frederic Weisbecker <fweisbec@gmail.com>
To: Nigel Cunningham <ncunningham-lkml@crca.org.au>
Cc: Arjan van de Ven <arjan@infradead.org>,
linux-kernel@vger.kernel.org, torvalds@linux-foundation.org,
mingo@elte.hu, linux-scsi@vger.kernel.org,
linux-ide@vger.kernel.org, linux-acpi@vger.kernel.org,
akpm@linux-foundation.org
Subject: Re: [PATCH 0/4] Fastboot revisited: Asynchronous function calls
Date: Mon, 5 Jan 2009 09:47:04 +0100 [thread overview]
Message-ID: <20090105084703.GA5741@nowhere> (raw)
In-Reply-To: <1231135294.8179.45.camel@nigel-laptop>
On Mon, Jan 05, 2009 at 05:01:34PM +1100, Nigel Cunningham wrote:
> Hi Arjan.
>
> Great work, and valuable too. I'm just wondering if the header file name
> "async.h" is a little too generic? Something like async_init.h perhaps?
>
> Regards,
>
> Nigel
>
Hi Nigel,
That's what I thought too at first. But I guess there could be other
users of these async functions than the initcalls.
It looks like out of order workqueues that can synchronize themselves.
It seems a bit more costly than workqueues (since the concept comes along
a loop of creation/destroying of several threads) but more efficient for the
same reason as the number of active threads adapts to the number of CPU and jobs to perform.
The purpose is not the same. But I guess it's more reliable
than workqueues for pathes that require mutiple parallel jobs which need
to locally synchronize on critical pathes.
next prev parent reply other threads:[~2009-01-05 8:47 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-04 17:24 [PATCH 0/4] Fastboot revisited: Asynchronous function calls Arjan van de Ven
2009-01-04 17:28 ` [PATCH 1/4] fastboot: Asynchronous function calls to speed up kernel boot Arjan van de Ven
2009-01-04 18:33 ` Linus Torvalds
2009-01-04 18:40 ` Arjan van de Ven
2009-01-04 18:49 ` Arjan van de Ven
2009-01-04 19:05 ` Andi Kleen
2009-01-04 19:09 ` Arjan van de Ven
2009-01-04 19:49 ` Andi Kleen
2009-01-04 19:52 ` Andrew Morton
2009-01-04 17:29 ` [PATCH 2/4] fastboot: make scsi probes asynchronous Arjan van de Ven
2009-01-04 18:05 ` Matthew Wilcox
2009-01-04 18:13 ` Arjan van de Ven
2009-01-04 18:38 ` Jaswinder Singh Rajput
2009-01-04 18:44 ` Arjan van de Ven
2009-01-04 17:30 ` [PATCH 3/4] fastboot: make the libata port scan asynchronous Arjan van de Ven
2009-01-04 17:31 ` [PATCH 4/4] fastboot: make ACPI bus drivers probe asynchronous Arjan van de Ven
2009-01-05 2:03 ` Zhao Yakui
2009-01-05 1:58 ` Arjan van de Ven
2009-01-05 2:51 ` Zhao Yakui
2009-01-05 2:51 ` Arjan van de Ven
2009-01-05 5:30 ` Zhao Yakui
2009-01-04 18:16 ` [PATCH 0/4] Fastboot revisited: Asynchronous function calls Linus Torvalds
2009-01-04 18:31 ` Arjan van de Ven
2009-01-04 18:54 ` Linus Torvalds
2009-01-04 19:05 ` Arjan van de Ven
2009-01-04 19:11 ` Linus Torvalds
2009-01-04 19:19 ` Arjan van de Ven
2009-01-05 16:21 ` Alan Cox
2009-01-05 21:13 ` Arjan van de Ven
2009-01-05 21:21 ` Linus Torvalds
2009-01-04 19:11 ` Andi Kleen
2009-01-04 19:46 ` Robert Hancock
2009-01-04 19:27 ` Linus Torvalds
2009-01-04 19:48 ` Arjan van de Ven
2009-01-04 21:44 ` Alan Cox
2009-01-11 13:14 ` Pavel Machek
2009-01-05 6:01 ` Nigel Cunningham
2009-01-05 8:47 ` Frederic Weisbecker [this message]
2009-01-05 10:53 ` Arjan van de Ven
2009-01-05 11:18 ` Nigel Cunningham
2009-01-07 2:41 ` Shaohua Li
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