linux-kernel - Re: [kernel.org users] XZ Migration discussion

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Date:	Sun, 14 Feb 2010 22:32:10 +0100
From:	Jean Delvare <khali@...ux-fr.org>
To:	david@...g.hm
Cc:	Stefan Richter <stefanr@...6.in-berlin.de>,
	Pavel Machek <pavel@....cz>, Willy Tarreau <w@....eu>,
	mirrors@...nel.org, lasse.collin@...aani.org,
	linux-kernel <linux-kernel@...r.kernel.org>, users@...nel.org,
	"FTPAdmin Kernel.org" <ftpadmin@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [kernel.org users] XZ Migration discussion

On Sun, 14 Feb 2010 13:04:45 -0800 (PST), david@...g.hm wrote:
> On Sun, 14 Feb 2010, Stefan Richter wrote:
> 
> > Pavel Machek wrote:
> >> On zaurus, kernel compilation takes 4 hours. (I.e. "one night"). So
> >> that one is ... well ... done overnight.
> >>
> >> Untar is something I normally wait for, since you need to run
> >> (interactive) oldconfig after that.
> >
> > If the download takes m minutes and unpacking and unarchiving tar.gz
> > takes another n minutes, what difference does it make for this workflow
> > when instead m + p minutes are spent for download + unpacking and
> > unarchiving tar.bz2 or tar.xz?
> 
> The difference is that the user is waiting for the n or m minutes, but 
> goes off and does something else for the p minutes.
> 
> So it doesn't really matter if the compile takes 1 hour or 6 hours. As 
> Pavel noted, this is done overnight and it doesn't matter if it gets done 
> at 2am or 6am.
> 
> But the uncompression has a user waiting for it (to do the config step), 
> so here it makes a big difference if it takes 6 minutes ot 8 minutes.

You totally missed Stefan's point. Read again.

-- 
Jean Delvare
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