From: Nigel Cunningham <nigel@suspend2.net>
Organization: Suspend2.net
To: Lee Revell <rlrevell@joe-job.com>
Subject: Re: Which is simpler? (Was Re: [Suspend2-devel] Re: [ 00/10] [Suspend2] Modules support.)
Date: Tue, 7 Feb 2006 13:32:46 +1000
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Cc: Jim Crilly <jim@why.dont.jablowme.net>, Pavel Machek <pavel@ucw.cz>,
       "Rafael J. Wysocki" <rjw@sisk.pl>, suspend2-devel@lists.suspend2.net,
       linux-kernel@vger.kernel.org
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On Tuesday 07 February 2006 13:17, Lee Revell wrote:
> On Mon, 2006-02-06 at 22:01 -0500, Jim Crilly wrote:
> > With uswsusp it'll be more flexible in that you'll be able to use any
> > userland process or library to transform the image before storing it,
> > but the suspend and resume processes are going to be a lot more
> > complicated. For instance, how are you going to tell the kernel that
> > you need the uswsusp UI binary, /bin/gzip and /usr/bin/gpg to run
> > after the rest of userland has been frozen?
>
> Unless someone at least gives a rough estimate of 1) what % of users
> can't suspend their laptops now and 2) of these, what % are helped by
> suspend2, this thread is just handwaving...

Percentages would be pure guesswork, but I do have _some_ numbers.

=46or (1), I have no idea. Furthermore, I would think that if a user can=20
suspend with Suspend2, they should be able to suspend with swsusp. There=20
were 2 driver related patches I had that swsusp doesn't, with I sent to=20
Andrew and to John Stultz this morning for consideration. The one sent to=20
Andrew might make some people be able to suspend with Suspend2 who=20
couldn't with swsusp, but I couldn't see how the timer related one I sent=20
to John could make a difference (so I asked for his evaluation). Given=20
that the right thing happens with them, I guess merging Suspend2 should=20
make virtually zero difference to whatever the answer might be to #1.

Now to #2.I haven't seen download statistics for Suspend2 since last May.=20
At that time, we had a release that was current for about 3 months. During=
=20
that time, there were 12,000 downloads of the version (2.1.8 IIRC). Let's=20
say that half of them actually applied the software and used it. Does 6000=
=20
people make it worth it? Of course, having said that, I don't know how=20
many people would be more likely to use it if it was in mainline and they=20
didn't have to patch their kernels, but I'd suspect it would be at least=20
that number again.

Hope that helps.

Nigel
=2D-=20
See our web page for Howtos, FAQs, the Wiki and mailing list info.
http://www.suspend2.net                IRC: #suspend2 on Freenode

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