🚀 go-pugleaf

In article <18292@watdragon.waterloo.edu> ccplumb@rose.waterloo.edu (Colin Plumb) writes:
>Did you have a look at the system time for copying a 1 meg file to
>/dev/null?  On the 4.3 BSD microvax I'm on, it's 0.7 seconds.
>(5 seconds real, but the load average is 2.7 and I shouldn't be reading
>news.)  Why on earth does it take 700,000 instructions to find 256 4K blocks?
	This is an oversimplification of the issue (!).  There's a *lot*
more going on here than simple division will account for.  The amount of time
this takes can depend on a whole slew of other things (where the drive heads
happen to be seeking Vs. where your file is, file contiguity, what other
processes are running and what they're trying trying to, phase of the
moon...:-).  Also, microvaxes were never known for raw horse-power.  

							Anand.  
--
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