Re: [PATCH] RFC: perf, tools: Move gtk browser into separate perfgtkexecutable

From: Vince Weaver
Date: Mon Aug 12 2013 - 15:24:46 EST

On Mon, 12 Aug 2013, Ingo Molnar wrote:

> perf is the exact opposite: no split-up the development culture because
> they are closely related, yet a relatively disciplined ABI between the
> components. In fact the ABI is higher quality exactly because development
> is more integrated and allows for ABI problems to be resolved before they
> leak out. It also allows for faster iteration of development, without
> nonsensical ABI steps pulluting the way.

I don't know if I'd use "quality" and "perf ABI" in the same sentence.
It's a horrible ABI; it has the honor of having the longest syscall
manpage, beating out even ptrace.

It also really isn't that stable; I've had perf ABI changes break programs
I maintain at least three times in the last 2 kernel releases. Part of
this is due to the tight coupling into the kernel, in fact the only ABI
anyone seems to care about is that presented by the perf-tool CLI
interface; the _actual_ kernel ABI seems like an afterthought.

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