Re: dtrace users opinion solicited (timestamps)

From: Adrian Chadd <adrian_at_freebsd.org>
Date: Fri, 10 Jul 2009 22:39:18 +0800
2009/7/10 Andriy Gapon <avg_at_freebsd.org>:
>> Another problem with this is that on a multicore machine each core may
>> have different TSC values. Has anyone thought how to address this
>> issue? Could we calculate the offset of each core from core0, and then
>> ensure the offset is applied to the tsc value when it is needed?
>
> Yes. The actual code accounts for inter-CPU/core TSC skew.

Pardon the stupid question, but how does Solaris deal with this?


Adrian
Received on Fri Jul 10 2009 - 12:39:19 UTC

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