linux-kernel - Re: [RFC 0/4] Transparent on-demand struct page initialization embedded in the buddy allocator

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Message-ID: <20130716090805.GC4402@pd.tnic>
Date:	Tue, 16 Jul 2013 11:08:05 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Joonsoo Kim <iamjoonsoo.kim@....com>
Cc:	Ingo Molnar <mingo@...nel.org>, Robin Holt <holt@....com>,
	Robert Richter <rric@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>, Nate Zimmer <nzimmer@....com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linux MM <linux-mm@...ck.org>, Rob Landley <rob@...dley.net>,
	Mike Travis <travis@....com>,
	Daniel J Blueman <daniel@...ascale-asia.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg KH <gregkh@...uxfoundation.org>,
	Yinghai Lu <yinghai@...nel.org>, Mel Gorman <mgorman@...e.de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [RFC 0/4] Transparent on-demand struct page initialization
 embedded in the buddy allocator

On Tue, Jul 16, 2013 at 05:55:02PM +0900, Joonsoo Kim wrote:
> How about executing a perf in usermodehelper and collecting output
> in tmpfs? Using this approach, we can start a perf after rootfs
> initialization,

What for if we can start logging to buffers much earlier? *Reading*
from those buffers can be done much later, at our own leisure with full
userspace up.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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