[comp.sys.apollo] Help! GPR-based application SLOWS down!!

mheffron@orion.oac.uci.edu (Matt Heffron) (08/24/90)

Posted for offline co-worker:

We have a GPR-direct-mode based application which makes HEAVY use of the
gpr_$close_fill_pgon routine.  It draws several complete images, clearing
the window between them with gpr$_clear.  It slows down during the third
image and comes to a near halt (minutes/polygon :-( ) during the fourth
one.  If we try to kill it (^Q) at this point it takes ~10minutes to
respond!!!  Subsequent transcript pad operations are sluggish for a few
minutes, and then goes back to its normal PERKY self (a DN2500/8MB by the way).
We suspect that the pad is accumulating all the info from the gpr calls
and it is "filling up".
Help!
Any ideas/suggestions??
Thanks in advance,
Matt Heffron	mheffron@orion.oac.uci.edu

ps.
 SR 10.2, if it matters...