linux-kernel - Re: [TuxOnIce-devel] Swsusp patches applied to suspend-2.6#linux-next

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Message-ID: <4CA06A95.7040303@tuxonice.net>
Date:	Mon, 27 Sep 2010 19:57:41 +1000
From:	Nigel Cunningham <nigel@...onice.net>
To:	Andrey Rahmatullin <wrar@...linux.org>
CC:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux PM <linux-pm@...ts.linux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	TuxOnIce-devel <tuxonice-devel@...onice.net>
Subject: Re: [TuxOnIce-devel] Swsusp patches applied to suspend-2.6#linux-next

Hi.

On 27/09/10 19:38, Andrey Rahmatullin wrote:
> On Mon, Sep 27, 2010 at 06:29:35PM +1000, Nigel Cunningham wrote:
>>>> As discussed, here are the patches, modified to apply against your current
>>>> linux-next tree. A new first patch splits compression support out into its
>>>> own file, removing the need to have two versions of the load_image and
>>>> save_image routines, minimising the changes to the remainder of the
>>>> patches and making things cleaner than would otherwise be the case.
>>>>
>>>> On my laptop, single-threaded compression actually slows writing down from
>>>> 175MB/s to around 100-120MB/s (depending on how well the image compresses).
>>>> Reading speed improves from 218MB/s to around 245MB/s. I expect that
>>>> multithreaded writing would bring the writing (and reading) speeds back
>>>> up. It's on my swsusp to do list :)
>>> Works here.
>>
>> Ah. You're too fast for me :)
>>
>> What sort of speeds are you seeing?
> Well, I don't see any 'PM: Image read at' etc in the kernel logs after
> resuming (in for-rafael tree).

You need CONFIG_PM_DEBUG enabled for that. Perhaps I should remove that 
requirement.

Nigel
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