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Subject: Re: [edk2-devel] Multithreaded compression with LZMA2
To: "Schaefer, Daniel" <daniel.schaefer@hpe.com>,
 "devel@edk2.groups.io" <devel@edk2.groups.io>
Cc: "Lin, Derek (HPS SW)" <derek.lin2@hpe.com>
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From: "Laszlo Ersek" <lersek@redhat.com>
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On 12/03/20 13:11, Schaefer, Daniel wrote:
> 
> From: Laszlo Ersek <lersek@redhat.com>
> Sent: Thursday, December 3, 2020 18:24
> To: devel@edk2.groups.io <devel@edk2.groups.io>; Schaefer, Daniel <daniel.schaefer@hpe.com>
> Cc: Lin, Derek (HPS SW) <derek.lin2@hpe.com>
> Subject: Re: [edk2-devel] Multithreaded compression with LZMA2
> 

> "xz -T" works by splitting the input into blocks, and it generates a
> multi-block compressed output.
> 
> Yes, that's correct.
> 
>> I'm unsure if the current LZMA
> decompressor that runs inside the firmware (= guided section extractor)
> copes with multi-block input.
> 
> I think you're right that it doesn't. But we can make the guided section extractor use that same algorithm(LZMA2) and assign it a different GUID, right?

I guess so...

Thanks
Laszlo