Date: Thu, 4 Mar 2010 17:31:18 +0800 From: Adrian Chadd <adrian@freebsd.org> To: Tim Kientzle <kientzle@freebsd.org> Cc: freebsd-hackers@freebsd.org, Alex RAY <ray@ddteam.net>, Ivan Voras <ivoras@freebsd.org> Subject: Re: GEOM_ULZMA Message-ID: <d763ac661003040131n17fcaad8see5531f125351728@mail.gmail.com> In-Reply-To: <4B8E8E5A.5050203@freebsd.org> References: <20100219163644.da89e882.ray__27111.9062825621$1266591431$gmane$org@dlink.ua> <hlmb66$n0t$1@ger.gmane.org> <20100219222604.44e50248.ray@ddteam.net> <d763ac661002200636u6a0d9546id96fbe2302c7122b@mail.gmail.com> <20100220201510.720c62fd.ray@ddteam.net> <d763ac661002201020g381ab6c0uca6d6fa3f660ed1b@mail.gmail.com> <d763ac661003030001k1055eae8rb106dcc9e73047dc@mail.gmail.com> <4B8E8E5A.5050203@freebsd.org>
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On 4 March 2010 00:29, Tim Kientzle <kientzle@freebsd.org> wrote: > Interesting question: =A0What is the impact on boot speed? > It could be a lot faster to load 5MB from disk and > decompress to a 24MB image than to wait for 24MB from > disk. Linear reads from disk are fast. :) Linear reads from the SPI flash are slower; and I think the decompression phase is quite a bit slower. I'll investigate all of this further once I've played with GEOM_ULZMA. Adrian
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