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Conference azur::mcc

Title:DECmcc user notes file. Does not replace IPMT.
Notice:Use IPMT for problems. Newsletter location in note 6187
Moderator:TAEC::BEROUD
Created:Mon Aug 21 1989
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6497
Total number of notes:27359

286.0. "ICONIC MAP -US map slooooow" by GDJUNK::HOULE (Steve, NM is the future!) Mon Aug 27 1990 20:05

Hi,

I've heard this problem/bug is being addressed in the QAR system but I would 
like to track it here and add my two cents.

PROBLEM:
When using the iconic map interface (MCC V1.1 IFT -X1.1) with the US map a severe
performance problem occurs when the "navigation window" is brought up.
The corresponding QAR for this problem is icon_int #125.

SYMPTOMS:
The performance is good with the US map until the navigation window is exposed.
Then any movement of the pointer causes the mcc executable and the decw server
to TOTALLY consume the cpu.

QAR_response: suggested resetting some process quotas.
  Our quotas are already higher than the recommendation.

MY TWO CENTS: 
I think the problem is with the mcc decwindows code.
(note: I'm not a decwindows expert)
Decwindow's applications respond to "expose events" from the window manager. 
I think for this problem that mcc is using the mouse movement expose event
continuously as opposed to waiting for a "button depress". 

So tell me I'm wrong, but figure out what the problem is.
Because until a solution is found the icon map interface is not really usable.

Steve Houle  

Network Management Solutions Group 
IFT site for MCC
	
T.RTitleUserPersonal
Name
DateLines
286.1Even the Finnish map (120 points only) is slowEEMELI::VALTONENTue Aug 28 1990 06:5514
    I noticed the same slowness with Iconic map.
    
    I've a VS3100/M38 and it runs 100% CPU busy, when I move the cursor
    in map window (not just navigation window).
    When I stop moving mouse CPU drops down to 4-5% level in 30 seconds
    (it stays at 100% that period).
    It's certainly just moving the cursor, not clicking it which seems
    to consume all CPU...
    
    Strange that this only happens when I've a background map in window -
    I use a simple map of 120 points, the world map is so much slower!
    Without the background map I've seen only <30% CPU figures!
    
    Olli
286.2DECwindows?EEMELI::VALTONENTue Aug 28 1990 07:134
    Monitoring the system shows that current top process is
    DECW$SERVER_0...
    It's using all the available CPU - up to 92%, only few percents are 
    left for MCC and window processes. 
286.3Is anyone in MCC engineering listening?GDJUNK::HOULESteve, NM is the future!Fri Sep 07 1990 20:400
286.4We're listening!TOOK::F_MESSINGERMon Sep 10 1990 12:108
Sorry for not letting you know that we are looking into it.  In the mean time
you can do three things that will help:
 
     1) have a page file 0f at least 100k blocks 
     2) set virtualpagecnt to be 100,000
     3) restart your server with the logical DECW$SERVER_PAGE_FILE = 100000

Fred