Re: Heisenberg and measurement intrusion....
- From: JApplewhite@xxxxxxxxxxxxx
- To: oracle-l@xxxxxxxxxxxx
- Date: Tue, 31 Jul 2007 17:49:39 -0500
That is bogus beyond belief. The Heisenberg Uncertainty Priciple mainly
invoved predicting the position of an electron around an atomic nucleus.
Even a single photon of light (the mechanism of "observing" / measuring
the electron's position) would radically offset the electron, so you'd
never know where it was at before the "measuring" photon hit it.
If the Measurement / Measured relationship is on the scale of Photon /
Electron, then there's reason to be concerned. However, realistically,
the amount of heat extracted from a person's body to expand the mercury in
a thermometer to measure that person's temperature introduces no error in
the measured temperature.
Unless your database monitoring tool is more like a sledgehammer than a
stethoscope, you're OK.
Of course, that's IMHO.
Jack C. Applewhite - Database Administrator
Austin (Texas) Independent School District
512.414.9715 (wk) / 512.935.5929 (pager)
I'll just sit back in the shade while everyone gets laid.
That's what I call Intelligent Design. -- God ("Origin of Species": Chris
Smither)
"Ted Coyle" <oracle-l@xxxxxxxxxxxx>
Sent by: oracle-l-bounce@xxxxxxxxxxxxx
07/31/2007 03:38 PM
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Subject
Heisenberg and measurement intrusion....
I'm on an Oracle performance project and a project participant made a
statement regarding measurement intrusion.
Is the statement below accurate?
"So the Heisenberg uncertainty principle mandates we run without
monitoring
as a baseline."
I responded with a wikipedia link which I'll send later, but I'd like to
get
opinions first. :)
Regards,
Ted
--
//www.freelists.org/webpage/oracle-l
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