From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)
To: Pavel Machek <pavel@ucw.cz>
Cc: Rik van Riel <riel@surriel.com>, linux-kernel@vger.kernel.org
Subject: Re: WANTED: kernel projects for CS students
Date: Mon, 29 Oct 2007 15:48:20 -0400 [thread overview]
Message-ID: <20071029194820.GC27646@csclub.uwaterloo.ca> (raw)
In-Reply-To: <20071028180707.GA6111@ucw.cz>
On Sun, Oct 28, 2007 at 06:07:07PM +0000, Pavel Machek wrote:
> Hard stuff:
>
> * network character device -- similar to nbd, but for char devices.
> either figure out how to forward ioctls(), or implement
> usb-over-network, or...
>
> * openMosix -- they seem to have userspace solution, but not GPLed.
>
> * compression for ext4. Its about time someone did it right. Special
> bonus if you can do it in a way that it does not slow down. If cpu
> is free, compress, if it is busy, just write it straight to disk.
So if I decide that the cpu is busy (because something is asking me to
write the cpu is clearly doing something and hence busy), then I can
skip compression and just write to disk. So by that definition ext4
already does compression. What a simple project. :)
Did you mean it ought to come back and do the compression later?
Is it possible that for some data compressing it and writing will take
less time than not compressing it and writing it to disk?
--
Len Sorensen
next prev parent reply other threads:[~2007-10-29 19:49 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-14 23:01 Rik van Riel
2007-10-15 10:40 ` WANG Cong
2007-10-15 17:13 ` Rik van Riel
2007-10-15 14:23 ` Sam Ravnborg
2007-10-15 15:10 ` Rik van Riel
2007-10-15 18:31 ` Sam Ravnborg
2007-10-15 16:31 ` Philippe Elie
2007-10-15 16:36 ` Philippe Elie
2007-10-15 16:52 ` Jan Engelhardt
2007-10-15 16:53 ` Xavier Bestel
2007-10-15 18:19 ` Sam Ravnborg
2007-10-15 15:40 ` Jörn Engel
2007-10-15 17:04 ` Doug Whitesell (LKML)
2007-10-15 17:04 ` Mark Gross
2007-10-15 18:30 ` Sam Ravnborg
2007-10-15 18:45 ` Mark Gross
2007-10-15 19:54 ` Giacomo Catenazzi
2007-10-16 20:06 ` Mark Gross
2007-10-16 20:09 ` Jan Engelhardt
2007-10-16 20:23 ` Rik van Riel
2007-10-16 20:25 ` Jan Engelhardt
2007-10-16 21:10 ` david
2007-10-16 21:30 ` david
2007-11-02 7:54 ` Giacomo Catenazzi
2007-10-16 20:31 ` Giacomo Catenazzi
2007-10-15 19:17 ` Alexey Dobriyan
2007-10-15 19:54 ` Folkert van Heusden
2007-10-16 20:10 ` Mark Gross
2007-10-16 0:39 ` david
2007-10-15 17:10 ` Zan Lynx
2007-10-15 17:23 ` Rik van Riel
2007-10-16 0:51 ` david
2007-10-15 17:30 ` Guilherme Amadio
2007-10-15 18:03 ` J. Bruce Fields
2007-10-17 17:45 ` Mark Gross
2007-10-18 4:51 ` Toshiharu Harada
2007-10-28 18:07 ` Pavel Machek
2007-10-28 18:57 ` Rafael J. Wysocki
2007-10-29 19:48 ` Lennart Sorensen [this message]
2007-10-29 20:19 ` Pavel Machek
2007-10-29 21:44 ` Lennart Sorensen
2007-11-03 3:08 ` Valdis.Kletnieks
2007-11-03 3:36 ` Rik van Riel
2007-11-03 9:44 ` Wander Winkelhorst
2007-11-03 10:05 ` david
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