busy looping in kernel, time question

[Chris Torek]

In article <234 at Shasta.ARPA> alex at lancelot writes:
>	Assume I want to busy loop in the kernel for 100 milliseconds, how
>many times (approx) should I go around a loop which increments an int?

In a 4BSD kernel, use the `DELAY' macro.  DELAY(n) takes approximately
n microseconds to complete:

	DELAY(100000);	/* 100 ms */

The actual delay is *very* approximate.
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In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 1415)
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