In message <[email protected]>, Peter Jeremy write
s:

>>I'm assuming folks are still in love with the TSC because it still the
>>cheapest as oppose ACPI-fast or HPET to even contemplate this?
>
>That is its major advantage.  It might be feasible to export all the
>data necessary to implement the complete CLOCK_*_FAST family.

The general attraction is that it can be read from userland by unpriviledged
programs.

On systems where the ACPI or HPET hardware can be memory-mapped, I should
be equally possible to map those read-only into userland processes.

Now _THAT_ would be interesting.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
[email protected]         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.
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