Timing
Usage Message: Timing[expr] evaluates expr, and returns a list of time used, together with the result obtained.
Attributes[Timing] = {HoldAll, Protected, SequenceHold}
Notes: The
Timing function relies on timing information provided by the operating system of your computer. On most computers this information is accessed through
internal C programming language functions such as clock or getrusage. The actual internal function that is used depends on the type of
computer. In Mathematica for SGI, Solaris, and Digital Unix, the Timing function can return a time of Null
if the time of the calculation is more than about 40 minutes. This behavior is a result of an unanticipated limitation of the underlying timing system on these
computers. Although there are no direct workarounds for this problem, you can usually get useful timing information using other functions, such as AbsoluteTime
, SessionTime
, or TimeUsed
. It is expected that this problem will be corrected for the next release of Mathematica.
Additional Online Documentation:
Mathematica 3.0
http://documents.wolfram.com/v3/RefGuide/Timing.html
Mathematica 4.0
http://documents.wolfram.com/v4/RefGuide/Timing.html
Questions or comments? Send email to support@wolfram.com.
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