linux-kernel - Re: [PATCH v2] PM: hibernate: don't store zero pages in the image file.

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Message-ID: <Y/C7EO5xUHh4p/MS@duo.ucw.cz>
Date:   Sat, 18 Feb 2023 12:48:32 +0100
From:   Pavel Machek <pavel@....cz>
To:     Brian Geffon <bgeffon@...gle.com>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <len.brown@...el.com>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] PM: hibernate: don't store zero pages in the image
 file.

Hi!

> > I need some more time to go through this in more detail, so it is
> > likely to miss 6.3.  Sorry about that.
> 
> No problem, consider this more of an RFC, it seems like a
> low-risk/low-cost way to reduce image sizes so I was just hoping to
> get feedback. Take your time reviewing.

Seems like special case of compression, really, it might be better to
leave it to compression algorithm to solve that.

Not sure if lzo is optimal if you want max speed, but things like gzip
should be "almost free", too.

Best regards,
								Pavel
-- 
People of Russia, stop Putin before his war on Ukraine escalates.

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