From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: Date: Sun, 4 Sep 2011 21:42:35 -0700 Message-ID: From: ron minnich To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=ISO-8859-1 Subject: Re: [9fans] high precision timings Topicbox-Message-UUID: 196e5890-ead7-11e9-9d60-3106f5b1d025 The TSC has been badly abused by the chip makers over the last ten years. It went through a period of time where it had poor accuracy. Be sure to look at your hardware and make sure it's a later chip which will give you reasonable TSC behavior. ron