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Re: [Qemu-devel] [RFC PATCH qemu] qapi: Add query-memory-checksum


From: Markus Armbruster
Subject: Re: [Qemu-devel] [RFC PATCH qemu] qapi: Add query-memory-checksum
Date: Thu, 22 Aug 2019 16:16:53 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (gnu/linux)

Alexey Kardashevskiy <address@hidden> writes:

> This returns MD5 checksum of all RAM blocks for migration debugging
> as this is way faster than saving the entire RAM to a file and checking
> that.
>
> Signed-off-by: Alexey Kardashevskiy <address@hidden>

Any particular reason for MD5?  Have you measured the other choices
offered by GLib?

I understand you don't need crypto-strength here.  Both MD5 and SHA-1
would be bad choices then.



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