回复: [edk2-devel] Multithreaded compression with LZMA2

[gaoliming]

Daniel：
  Yes. New guided section extractor matches new compression algorithm. For
the compression algorithm, its compression ratio, compression performance,
the decompression performance, the decompression taken memory are all
required to be considered. 

Thanks
Liming
> -----邮件原件-----
> 发件人: bounce+27952+68292+4905953+8761045 at groups.io
> <bounce+27952+68292+4905953+8761045 at groups.io> 代表 Laszlo Ersek
> 发送时间: 2020年12月4日 7:35
> 收件人: Schaefer, Daniel <daniel.schaefer at hpe.com>; devel at edk2.groups.io
> 抄送: Lin, Derek (HPS SW) <derek.lin2 at hpe.com>
> 主题: Re: [edk2-devel] Multithreaded compression with LZMA2
> 
> On 12/03/20 13:11, Schaefer, Daniel wrote:
> >
> > From: Laszlo Ersek <lersek at redhat.com>
> > Sent: Thursday, December 3, 2020 18:24
> > To: devel at edk2.groups.io <devel at edk2.groups.io>; Schaefer, Daniel
> <daniel.schaefer at hpe.com>
> > Cc: Lin, Derek (HPS SW) <derek.lin2 at 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
> 
> 
> 
> 
> 





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