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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

1234.0. "Problems with DECterm!" by SKYWAY::HONEGGER (Evi Honegger, DEC Basel) Fri Aug 04 1989 12:27

    Hi,
    
    	I have a customer who is using MACCS/REACCS in a DECterm emulation
    window. As I could convince myself, the performance is rather low. Also
    he has sometimes to make additional carriage returns which he has
    not to do when working on a VT340-terminal.The performance is much
    higher, if he uses VWS with the Regis Terminal.
    	Could somebody tell me whether there are known problems with
    the performance of DECterm?
    
    Thanks for help!
    
    Regards!
    
    Evi

T.R Title User Personal
Name Date Lines

1234.1 Yes, there are several problems with ReGIS emulation HANNAH::MESSENGER Bob Messenger Fri Aug 04 1989 12:46 16

T.R	Title	User	Personal Name	Date	Lines
1234.1	Yes, there are several problems with ReGIS emulation	HANNAH::MESSENGER	Bob Messenger	`Fri Aug 04 1989 12:46`	16
	Re: .0 Yes, there are known problems with ReGIS performance. For one thing, the X protocol doesn't allow for scaled and rotated text, so all of that has to be done on the client side in DECterm (which is clumsy and slow). Another problem is that the server doesn't support a backing store, so DECterm has to draw everything twice: once to the window and once to an off-screen window. You can disable the ReGIS backing store in DECwindows V2. There are also problems with the ReGIS emulation, as you've noted. Please QAR any problems that you find (or have your customers submit SPRs) in case the problems aren't already known. A lot of bugs have been fixed in DECwindows V2, e.g. with character sizes and locator input. -- Bob

Re: .0

Yes, there are known problems with ReGIS performance.  For one thing, the
X protocol doesn't allow for scaled and rotated text, so all of that has to
be done on the client side in DECterm (which is clumsy and slow).  Another
problem is that the server doesn't support a backing store, so DECterm has
to draw everything twice: once to the window and once to an off-screen
window.  You can disable the ReGIS backing store in DECwindows V2.

There are also problems with the ReGIS emulation, as you've noted.  Please
QAR any problems that you find (or have your customers submit SPRs) in case
the problems aren't already known.  A lot of bugs have been fixed in DECwindows
V2, e.g. with character sizes and locator input.

				-- Bob