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st: Slower in v10 than v9


From   Nick Winter <nwinter@virginia.edu>
To   Stata List <statalist@hsphsun2.harvard.edu>
Subject   st: Slower in v10 than v9
Date   Mon, 03 Mar 2008 10:22:01 -0500

While on the topic of things that are slower in version 10, compared with version 9 (cf thread on "Stata/SE 10 very slow reading program code"), I note that -graph combine- seems orders of magnitude slower in version 10, compared with 9.

It seems like in 10 the individual graphs are being redrawn.

Comparative timings:

Version 9.2 (SE, Windows):

. graph twoway scatter mpg price, name(one)
r; t=10.06 10:16:43

. graph twoway line mpg price, name(two)
r; t=0.61 10:16:51

. graph combine one two
r; t=0.95 10:16:59


Version 10 (IC, Windows):

. graph twoway scatter mpg price, name(one)
r; t=9.04 10:15:42

. graph twoway line mpg price, name(two)
r; t=0.70 10:15:52

. graph combine one two
r; t=5.96 10:16:06


Do others notice this change?


--Nick Winter

--
--------------------------------------------------------------
Nicholas Winter 434.924.6994 t
Assistant Professor 434.924.3359 f
Department of Politics nwinter@virginia.edu e
University of Virginia faculty.virginia.edu/nwinter w
PO Box 400787, 100 Cabell Hall
Charlottesville, VA 22904

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