Re: [gentoo-portage-dev] [PATCH] Change BINPKG_COMPRESS default from bzip2 to xz
On 4/26/20 2:12 PM, Zac Medico wrote: > On 4/26/20 1:09 PM, Matt Turner wrote: >> On Sun, Apr 26, 2020 at 12:29 PM Michał Górny wrote: >>> >>> On Sun, 2020-04-26 at 09:55 -0700, Matt Turner wrote: Bug: https://bugs.gentoo.org/715108 Signed-off-by: Matt Turner --- Strawman patch. Bikeshed away. >>> >>> xz is generally slow and doesn't do parallel good. If we want to change >>> this, we should go for something cool like zstd that scales better. >> >> That works for me. >> > > Let's make the default conditional on zstd USE flag as suggested in bug > 719456. It will be similar to how the ebuild enables FEATURES=xattr for > USE=xattr. In https://github.com/gentoo/gentoo/pull/15520 the issue was raised that it's probably not a good idea to change this default via the zstd USE flags, since changing the format of binary packages is kind of a big deal (it affects consumers of any binary packages that you build). I think it might be a good idea to make this new default apply only to new installations, like we did when changing default locations for bug 378603. If we're changing the default, then all architectures need keywords, so I've opened https://bugs.gentoo.org/721960. -- Thanks, Zac
Re: [gentoo-portage-dev] [PATCH] Change BINPKG_COMPRESS default from bzip2 to xz
On Sun, 2020-04-26 at 18:23 -0400, Michael Orlitzky wrote: > On 4/26/20 3:25 PM, Ulrich Mueller wrote: > > > > > > > On Sun, 26 Apr 2020, Michael Orlitzky wrote: > > > Fuel for the fire: > > > * https://www.nongnu.org/lzip/lzip_benchmark.html > > > * https://www.nongnu.org/lzip/xz_inadequate.html > > > > Yep. That's why lzip is the dominant compression format now, and nobody > > is using xz any more. > > > > If you believed that argument, you would be using Windows =P > > Dude has GRAPHS, it must be true. > It is true but nobody cares. People managed to shove a lot of unused code into the kernel and nobody cares. -- Best regards, Michał Górny signature.asc Description: This is a digitally signed message part
Re: [gentoo-portage-dev] [PATCH] Change BINPKG_COMPRESS default from bzip2 to xz
On 4/26/20 3:25 PM, Ulrich Mueller wrote: >> On Sun, 26 Apr 2020, Michael Orlitzky wrote: > >> Fuel for the fire: > >> * https://www.nongnu.org/lzip/lzip_benchmark.html >> * https://www.nongnu.org/lzip/xz_inadequate.html > > Yep. That's why lzip is the dominant compression format now, and nobody > is using xz any more. > If you believed that argument, you would be using Windows =P Dude has GRAPHS, it must be true.
Re: [gentoo-portage-dev] [PATCH] Change BINPKG_COMPRESS default from bzip2 to xz
On 4/26/20 1:09 PM, Matt Turner wrote: > On Sun, Apr 26, 2020 at 12:29 PM Michał Górny wrote: >> >> On Sun, 2020-04-26 at 09:55 -0700, Matt Turner wrote: >>> Bug: https://bugs.gentoo.org/715108 >>> Signed-off-by: Matt Turner >>> --- >>> Strawman patch. Bikeshed away. >>> >> >> xz is generally slow and doesn't do parallel good. If we want to change >> this, we should go for something cool like zstd that scales better. > > That works for me. > Let's make the default conditional on zstd USE flag as suggested in bug 719456. It will be similar to how the ebuild enables FEATURES=xattr for USE=xattr. -- Thanks, Zac signature.asc Description: OpenPGP digital signature
Re: [gentoo-portage-dev] [PATCH] Change BINPKG_COMPRESS default from bzip2 to xz
On Sun, Apr 26, 2020 at 12:29 PM Michał Górny wrote: > > On Sun, 2020-04-26 at 09:55 -0700, Matt Turner wrote: > > Bug: https://bugs.gentoo.org/715108 > > Signed-off-by: Matt Turner > > --- > > Strawman patch. Bikeshed away. > > > > xz is generally slow and doesn't do parallel good. If we want to change > this, we should go for something cool like zstd that scales better. That works for me.
Re: [gentoo-portage-dev] [PATCH] Change BINPKG_COMPRESS default from bzip2 to xz
On 26-04-2020 21:29:42 +0200, Michał Górny wrote: > On Sun, 2020-04-26 at 09:55 -0700, Matt Turner wrote: > > Bug: https://bugs.gentoo.org/715108 > > Signed-off-by: Matt Turner > > --- > > Strawman patch. Bikeshed away. > > > > xz is generally slow and doesn't do parallel good. If we want to change > this, we should go for something cool like zstd that scales better. I'd go for zstd too. It seems to be the best of both worlds, good compression at a good speed. Thanks, Fabian -- Fabian Groffen Gentoo on a different level signature.asc Description: PGP signature
Re: [gentoo-portage-dev] [PATCH] Change BINPKG_COMPRESS default from bzip2 to xz
On Sun, 2020-04-26 at 09:55 -0700, Matt Turner wrote: > Bug: https://bugs.gentoo.org/715108 > Signed-off-by: Matt Turner > --- > Strawman patch. Bikeshed away. > xz is generally slow and doesn't do parallel good. If we want to change this, we should go for something cool like zstd that scales better. -- Best regards, Michał Górny signature.asc Description: This is a digitally signed message part
Re: [gentoo-portage-dev] [PATCH] Change BINPKG_COMPRESS default from bzip2 to xz
> On Sun, 26 Apr 2020, Michael Orlitzky wrote: > Fuel for the fire: > * https://www.nongnu.org/lzip/lzip_benchmark.html > * https://www.nongnu.org/lzip/xz_inadequate.html Yep. That's why lzip is the dominant compression format now, and nobody is using xz any more. SCNR, Ulrich signature.asc Description: PGP signature
Re: [gentoo-portage-dev] [PATCH] Change BINPKG_COMPRESS default from bzip2 to xz
On 4/26/20 12:55 PM, Matt Turner wrote: > Bug: https://bugs.gentoo.org/715108 > Signed-off-by: Matt Turner > --- > Strawman patch. Bikeshed away. > Fuel for the fire: * https://www.nongnu.org/lzip/lzip_benchmark.html * https://www.nongnu.org/lzip/xz_inadequate.html
