linux-kernel - Re: [PATCH 3/3] utrace-based ftrace "process" engine, v2

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Message-ID: <20090322125320.GA14171@elte.hu>
Date:	Sun, 22 Mar 2009 13:53:20 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	"Frank Ch. Eigler" <fche@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Roland McGrath <roland@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>, utrace-devel@...hat.com,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 3/3] utrace-based ftrace "process" engine, v2


* Ingo Molnar <mingo@...e.hu> wrote:

>  Total download size: 329 M
> 
> That size of a _compressed_ debuginfo kernel package is obscene. 
> We can fit 4 years of full Linux kernel Git history into that size 
> - 60,000+ commits, full metadata and full 20 million lines of code 
> flux included!
> 
> Uncompressed it blows up to gigabytes of on-disk data.
> 
> And this download has to be repeated for _every_ minor kernel 
> upgrade.

Have to correct my memories about how many commits the kernel repo 
has: 132,019 commits. That massive history fits into 298 MB. (!)

	Ingo
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