Path: utzoo!attcan!uunet!husc6!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hpfcdc!hpfcdq!toml
From: toml@hpfcdq.HP.COM (Tom LaStrange)
Newsgroups: comp.windows.x
Subject: Re: UWM network use followup
Message-ID: <890032@hpfcdq.HP.COM>
Date: 18 Mar 89 17:12:44 GMT
References: <37553@think.UUCP>
Organization: Hewlett-Packard - Fort Collins, CO
Lines: 23

>A couple of days ago I posted a question about the high volume of
>network use UWM uses when it puts up its positioning corner for a new
>window.  The only response I received was a suggestion to look at the
>output of xscope.  I've done that now.  It answers the "what is it
>doing" question, but doesn't explain why.  Apparently it's repeatedly
>sending PolyLine and QueryPointer requests, and the server is
>responding with QueryPointer replies.  My guess is that it's manually
>tracking the cursor and drawing the positioning corner.  Why is it
>doing this itself, instead of letting the server do it?
>
>Barry Margolin
>Thinking Machines Corp.

If uwm were to wait for MotionNotify events, you would see window move
and resize operations slow to a crawl.  You'll see the same QueryPointer
scheme in twm.

--
Tom LaStrange

Hewlett Packard Co.               ARPA: toml%hpfcla@hplabs.hp.com
Graphics Technology Division      UUCP: hplabs!hpfcla!toml
Fort Collins, CO