Re: do_gettimeofday vs. rdtsc in the scheduler

From: Andrea Arcangeli (
Date: Thu Sep 19 2002 - 13:04:09 EST

On Wed, Sep 18, 2002 at 08:40:22AM +0200, Vojtech Pavlik wrote:
> The point here is: You don't need a synchronized bus clock. You don't
> need synchronized CPU clocks. You need a synchronized system-wide clock
> that doesn't drive any bus or CPU, just a simple counter in every CPU
> that you can read from inside the CPU. You can pull that pretty far and


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