Re: Handle Leaks with Microsoft.XMLDOM

JRS: In article <dmiv6e$knn$1$8300dec7@news.demon.co.uk>, dated Wed, 30
Nov 2005 01:27:40 local, seen in news:comp.lang.javascript, Richard
Cornford <Richard@litotes.demon.co.uk> posted :
>rf wrote:
><snip>
>> The resolution of any function that access the system clock
>> (which is updated at timer tick) would be exactly the same
>> as the timer tick. There is, after all, only one clock.
><snip>
>
>I am not sure that you can go that far. The resolution of a function
>that accesses the system clock can be no better than the OS tick, but it
>could be worse.

A browser writer *could* go further.

In the PC architecture, the 54.9 ms clock is obtained by division by
65536, and the signal that drives that can be divided by other numbers.
Signals of much higher frequency can be read in Win98/PII and higher -
there's the RDTSC instruction, and the performance counter.

Additionally, there's the PC RTC, driven by a 32 kHz crystal, which
could be used.
 

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