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From: Sedat Dilek <sedat.dilek@gmail.com>
To: Kees Cook <keescook@chromium.org>
Cc: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>,
	linux-kernel@vger.kernel.org,
	Nick Terrell <nickrterrell@gmail.com>,
	Nick Terrell <terrelln@fb.com>,
	Norbert Lange <nolange79@gmail.com>, Chris Mason <clm@fb.com>,
	linux-kbuild@vger.kernel.org, x86@kernel.org,
	gregkh@linuxfoundation.org, Petr Malat <oss@malat.biz>,
	Kernel Team <Kernel-team@fb.com>,
	Adam Borowski <kilobyte@angband.pl>,
	Patrick Williams <patrickw3@fb.com>,
	rmikey@fb.com, mingo@kernel.org,
	Patrick Williams <patrick@stwcx.xyz>
Subject: Re: Kernel compression benchmarks
Date: Fri, 3 Jul 2020 10:15:20 +0200	[thread overview]
Message-ID: <CA+icZUUBAzBNwqThSF=YS1zg9EVCuSZ-XDc5Pu3NrO6R3Fi2Zw@mail.gmail.com> (raw)
In-Reply-To: <202007020818.87EA89106@keescook>

On Thu, Jul 2, 2020 at 5:18 PM Kees Cook <keescook@chromium.org> wrote:
>
> On Wed, Jul 01, 2020 at 10:35:48AM -0400, Alex Xu (Hello71) wrote:
> > ZSTD compression patches have been sent in a number of times over the
> > past few years. Every time, someone asks for benchmarks. Every time,
> > someone is concerned about compression time. Sometimes, someone provides
> > benchmarks.
>
> Where's the latest series for this, btw? I thought it had landed. :P It
> seemed like it was done.
>

Hi,

Again, I would like to see this upstream, too.

Last I asked for a rebase against Linux v5.8-rc1 or later.

Beyond above adaptations, the latest series "zstd-v5" of Nick T.s
patchset needs some addition of zstd to the patch (see [1]):

commit 8dfb61dcbaceb19a5ded5e9c9dcf8d05acc32294
"kbuild: add variables for compression tools"

NOTE:
"zstd-v5" was against Linux-next 20200408 or download the series from
patchwork LKML which applies cleanly against Linux v5.7 - last is what
I did.

There was a follow-up to the above patch (see [2]):

commit e4a42c82e943b97ce124539fcd7a47445b43fa0d
"kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables"

Nevertheless, this is the kernel-side of doing - user-space like for
example Debian's initramfs-tools needs adaptations (see [3]).

@Kees: Can you aid Nick T. to get this upstream? You know the
processes a bit better than me.

Regards,
- Sedat -

[0] https://github.com/terrelln/linux/tree/zstd-v5
[0] https://lore.kernel.org/patchwork/project/lkml/list/?series=437934
[1] https://git.kernel.org/linus/8dfb61dcbaceb19a5ded5e9c9dcf8d05acc32294
[2] https://git.kernel.org/linus/e4a42c82e943b97ce124539fcd7a47445b43fa0d
[2] https://bugs.debian.org/955469

  reply	other threads:[~2020-07-03  8:15 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1588791882.08g1378g67.none.ref@localhost>
2020-07-01 14:35 ` Kernel compression benchmarks Alex Xu (Hello71)
2020-07-01 15:50   ` Gao Xiang
2020-07-01 17:32     ` Alex Xu (Hello71)
2020-07-02 15:18   ` Kees Cook
2020-07-03  8:15     ` Sedat Dilek [this message]
2020-07-03 16:06       ` Kees Cook
2020-07-03 17:36         ` Norbert Lange
2020-07-06 15:05         ` Nick Terrell
2020-07-26 16:43 Jan Ziak

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