From: Jesper Skov <jskov@redhat.com>
To: "sreenivas y.p.s.s" <sreenivas@multitech.co.in>
Cc: ecos-discuss@sources.redhat.com
Subject: Re: [ECOS] About compression and Decompression ???
Date: Tue, 25 Sep 2001 04:22:00 -0000 [thread overview]
Message-ID: <otn13jikh2.fsf@zoftcorp.adsl.dk> (raw)
In-Reply-To: <3BB0683E.57CA99DD@multitech.co.in>
>>>>> "sreenivas" == sreenivas y p s s <sreenivas@multitech.co.in> writes:
sreenivas> Hi, I have two questions about compressoin and
sreenivas> decompression in RedBoot
sreenivas> my question1: How will i compress a image in RedBoot. Is
sreenivas> there any command available ?
No.
sreenivas> If at all the image is a compressed format, then using
sreenivas> either 'load' or 'fis load' command we can decompress and
sreenivas> put in to RAM.
sreenivas> But, I need to put compressed image in to flash. How can i
sreenivas> do that? using 'fis write' there is no option for to
sreenivas> compress the image and put in to flash.
Compress the image before downloading it to the target.
sreenivas> my question2: Generally, how much heap memory is required
sreenivas> for a size of 1MB image to be compressed using 'deflation '
sreenivas> Algorithm.
I think the gunzip algorithm has a fixed overhead of something like
64kB.
Jesper
prev parent reply other threads:[~2001-09-25 4:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-25 4:14 sreenivas y.p.s.s
2001-09-25 4:22 ` Jesper Skov [this message]
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