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Conference bulova::decw_jan-89_to_nov-90

Title:	DECWINDOWS 26-JAN-89 to 29-NOV-90
Notice:	See 1639.0 for VMS V5.3 kit; 2043.0 for 5.4 IFT kit
Moderator:	STAR::VATNE

Created:	Mon Oct 30 1989
Last Modified:	Mon Dec 31 1990
Last Successful Update:	Fri Jun 06 1997
Number of topics:	3726
Total number of notes:	19516

1906.0. "Session Manager input focus takes 1 to 2% of CPU" by 34339::BRYSON () Wed Dec 13 1989 19:08

This is a trivial point, but I thought it rather humorous (and it will be
QAR/SPR'd).

On both VMS and ULTRIX, if you give the session manager window input focus,
it will take about 1 to 2 percent of the CPU.  This percentage sounds rather
suspicious; sounds like a blinking cursor situation.  In fact, that is 
exactly what it is -- the session manager is trying to blink an INVISIBLE
text cursor in the message portion of the control panel.  I am working with
both VMS 5.3 and ULTRIX T4.0.

Workaround:

On ULTRIX, place the following entry in ~/.Xdefaults:

	sm*Messages*blinkRate:	0

On VMS, place the following entry in SYS$LOGIN:DECW$XDEFAULTS.DAT:

	Session Manager*Messages*blinkRate:	0

The above entries will only affect the simple text widget in the session
manager control panel and all other text cursors in the popup windows of
the session manager will still blink as normal.


=David=

T.R	Title	User	Personal Name	Date	Lines
1906.1	known 'problem'...	SICVAX::GRAHAM	if ya want home cookin, stay home	`Thu Dec 14 1989 01:39`	8
	I use, .blinkRate: 0 on my PMAX. Kris..
1906.2	Blinking an INVISIBLE cursor??	34339::BRYSON		`Thu Dec 14 1989 10:26`	8
	I still like to see the flashing cursor in the active text widget. What I thought was funny is that the Session Manager blinks an INVISIBLE cursor, taking the 1% CPU to do something that is never seen. I knew that the blinking of a cursor takes about 1% of the CPU. Is this then known feature or is it the blinking of an INVISIBLE cursor that is a known problem? David
1906.3		PSW::WINALSKI	Careful with that VAX, Eugene	`Fri Dec 15 1989 18:34`	6
	The text widget doesn't know enough not to blink when its window isn't mapped. I find this an annoying enough problem that I've turned off blinking cursors universally. Whether this is considered a bug is a matter of opinion. If you think it is a bug, QAR it. --PSW
1906.4	The window is mapped...	34339::BRYSON		`Mon Dec 18 1989 13:49`	12
	It's not that the text widget is not mapped. It is. The situation is that the cursor is INVISIBLE, that is has DwtNinsertionPointVisible set to false. Eventhough the cursor is not visible, the simple text widget will still trying to blink a cursor. Right now, this should be a warning to anyone using simple text widgets with DwtNinsertionPointVisible set to false -- the simple text widget will still try to blink the cursor so the application should explicitly set DwtNblinkRate to 0 for these text widgets with INVISIBLE text cursors. Like I said originally, this is a trivial point. David
1906.5	useful 'bug'?	SICVAX::GRAHAM	if ya want home cookin, stay home	`Tue Dec 19 1989 02:03`	4
	For Motif, blinkRate is a feature - and it is documented. Kris..
1906.6	please report this in the ULTRIX QAR data base	SMURF::HOFFMAN	anywhere in the universe	`Wed Dec 27 1989 19:15`	7
	I would appreciate it if you would report this problem to the UWS_QAR data base on the system GORGE. We need all the performance (and easy workarounds) that we can get in the next couple months. John Hoffman UWS V4.0 Project Leader