lkml.org 
[lkml]   [2020]   [Jul]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Kernel compression benchmarks
On Fri, Jul 03, 2020 at 10:15:20AM +0200, Sedat Dilek wrote:
> 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"

Okay, cool. Yes, now is the right time to send an updated series based
on v5.8-rc2 with any outstanding adjusted/fixes made.

It seems v5 is here?
https://lore.kernel.org/lkml/20200408215711.137639-1-nickrterrell@gmail.com/

That wasn't sent "to" a maintainer, so it likely went unnoticed by either
akpm or the x86 maintainers. I think this should likely go via the x86
tree.

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

Right, but the kernel needs to implement the support first. :)

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

Sure; Nick, can you please rebase and handle any issues from v5? With
the result, send a v6 as you did for v5 before, but I would make your
"to" be:

Borislav Petkov <bp@alien8.de>
Thomas Gleixner <tglx@linutronix.de>

and keep the CC as you had it.

--
Kees Cook

\
 
 \ /
  Last update: 2020-07-03 18:15    [W:0.116 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site