Date: Fri, 10 Jul 2009 08:58:19 +0300 From: Andriy Gapon <avg@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: dtrace users opinion solicited (timestamps) Message-ID: <4A56D87B.6000202@freebsd.org> In-Reply-To: <4A56D6B7.8050100@freebsd.org> References: <4A562960.3010801@freebsd.org> <b649e5e0907091102h2bbf3799r4f8b840696a9162b@mail.gmail.com> <4A563A57.8090907@freebsd.org> <4A56AD55.2010201@freebsd.org> <4A56D6B7.8050100@freebsd.org>
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Thinking aloud - maybe we could always use one value of tsc_freq (or something like max_tsc_freq). This wouldn't give us correct timestamps when TSC frequency is changing, but it would give us something that is always proportional to TSC value and thus has its properties - monotonicity in the first place. And, of course, there is no problem when TSC frequency is constant. -- Andriy Gapon
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