On Fri, 26 May 2000 ">hirsch@zapmedia.com wrote:
> How does top indicate MMX usage? I have a computationally intense
Michael,
MMX is just a fancy form of floating point arithmetic. Thus,
though I have no definative proof for this statement, I would *highly*
suspect that if your program was spending a lot of its time performing
MMX operations, it would show up as being rather busy under "top". "ps",
"top" nor any of the other OS "process management" programs care as to
what exactly your program is doing (ie, what X86 instructions are being
executed), only, how many instructions are being executed.
My hunch is that, if you've got a program which is slow, yet sits
at 0% CPU usage, chances are it's blocking on I/O of some form. If your
hard drive is thrashing away, you could probably count on disk IO.
Otherwise, I'd be willing to bet some form of network IO problems.
- Mike
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Michael Kachline
">kachline@brightstar.gt.ed.net
http://brightstar.gt.ed.net/kachline
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