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Date: Thu, 11 Jun 2009 12:58:04 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: Linus Torvalds <torvalds@...ux-foundation.org> Cc: hch@...radead.org, a.p.zijlstra@...llo.nl, viro@...IV.linux.org.uk, mingo@...e.hu, davem@...emloft.net, eranian@...glemail.com, linux-kernel@...r.kernel.org, paulus@...ba.org, tglx@...utronix.de Subject: Re: [GIT PULL] Performance Counters for Linux On Thu, 11 Jun 2009 10:06:55 -0700 (PDT) Linus Torvalds <torvalds@...ux-foundation.org> wrote: > You haven't actually looked the real problem in the eye, and acknowledged > the disaster that is oprofile. Let's give a _new_ approach a chance, and > see if we can avoid the mistakes of yesteryear this time. +1, metoo. We've had numerous problems in the past where kernel developers have shied away from altering or distributing userspace code. One effect of this which we see again and again is that people shove presentation and parsing code into the kernel which should have been in userspace. It could be that shipping userspace code in the kernel bundle will improve that situation. So let's give it a try. If it turns out to be good, let's do it again. If it turns out to be bad, let's move perf out of the kernel tree and not do it again. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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