Date: Mon, 20 Nov 2000 01:12:28 +1100 (EST) From: Bruce Evans <bde@zeta.org.au> To: Mark Murray <mark@grondar.za> Cc: arch@FreeBSD.ORG Subject: Re: "Monotonic" counter/register call - commit candidate. Message-ID: <Pine.BSF.4.21.0011200106550.1644-100000@besplex.bde.org> In-Reply-To: <200011182252.eAIMqPJ13415@gratis.grondar.za>
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On Sun, 19 Nov 2000, Mark Murray wrote: > > > That function is kinda bloated; all I need is rdtsc() and its equivalents. > > > > I'm not sure about that. There are many interesting machine-dependent > > counters. E.g., the counter for the number of instructions executed > > increases at a similar rate to the TSC but is more random. > > I'm not looking for random. I'm looking for a fast counter. You seem to want more than a fast counter. The following implements a fast counter: --- u_int fast_counter; ++fast_counter; --- I will be away for a week and don't have time to reply any more to this thread. BTW, direct mail to you <mark@grondar.za> from me has been bouncing for a couple of months. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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