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Landscapes

Printed From: CAD Forum
Category: EN
Forum Name: AutoCAD
Forum Description: Discussion about AutoCAD and AutoCAD LT, viewers, DWG and DWF formats, Design Review, AutoCAD 360, add-ons
URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=8488
Printed Date: 01.Jun.2026 at 01:10


Topic: Landscapes
Posted By: Mimokiller
Subject: Landscapes
Date Posted: 15.Oct.2012 at 18:51
Dear all,

I'm making lots of landscapes (more than 20) on a drawing. That drawing have 5 X-refs.
My problem is that, when I'm making the landscapes, or working on that, the RAM on my laptop become higher and higher. I have an 8Gb RAM laptop with a 2Gb dedicated video target, but in thatcases the use of RAM memory became of 99% and Autocad starts to run slow.

Anyone can tell what can be happening?

Thank you!


Replies:
Posted By: John Connor
Date Posted: 16.Oct.2012 at 11:48
Are you seeing an "out of memory" errors?

What are the full specs of your laptop?

What is the capacity of your hard drive?  What speed is your hard drive?

What OS are you running?

What other applications are running in the background?


-------------
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

Posted By: Mimokiller
Date Posted: 16.Oct.2012 at 12:06
"Are you seeing an "out of memory" errors?"
Not at this laptop, but yes on a 3GbRAM laptop

"What are the full specs of your laptop?"
W7 64bit, Intel I5 3rd generation, 8 Gb RAM, 750Gb HD at 5400RPM

"What other applications are running in the background?"
Mozilla firefox, Mozilla thunderbird and Skype

Than you!

Posted By: John Connor
Date Posted: 16.Oct.2012 at 12:14
5400 rpm hard drives are notoriously slow.  You should have spent a little more and upgraded to a 7200 rpm hard drive or gone with SSD.

Out of memory errors are a result of an undersized virtual memory setting.

One of the first things you should do when experiencing a slow computer is turn off all the bells and whistles of the OS then start killing programs that are running in the background.

Does your laptop use a built-in graphics chip or does it have a dedicated graphics card?

You might try disabling (temporarily) your anti-virus program too.


-------------
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

Posted By: John Connor
Date Posted: 16.Oct.2012 at 12:25

Speed up Windows 7

Disable search indexing feature

Disable Aero theme

Disable unwanted visual effects

Disable unwanted services

Disable User Account Control

Enable ReadyBoost (use USB drive like RAM) This is the best tip.

Turn off unused features

Disable Sidebar (Gadgets)

Disable Aero Peek and Aero Snap

Change Power Plan to maximum

Disable thumbnail preview

Turn off screen saver and wallpaper

Disable unwanted start-up items

Disable unwanted system sounds



-------------
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

Posted By: Mimokiller
Date Posted: 16.Oct.2012 at 12:27
Thank you John, I'll try some of them.

Kind regards!

Posted By: John Connor
Date Posted: 16.Oct.2012 at 12:33

Speed up AutoCAD


Options> Open and Save > Turn off display digital signature information.


Check in Layer Manager to make sure you don't have 100's of layer filters, if so delete them.


Check the Scale List to make sure you don't have 100's of scale lists.


Don't use True Type Fonts (TTF) and see if that helps, lots of those will slow things down.


Go through the file paths in Options>Files and make sure every single path listed actually exists, be meticulous.


Dock the command line in the lower or upper portion of the AutoCAD screen.


Close the new Layer Manager in 2009. Use LAYERDLGMODE set to 0.


Use -purge, Regapps, purge all.


Pick the Enable hardware acceleration to see if that helps. Further down move the sliders over to the left.


Set LTscale to the proper value, a large drawing with linetypes will slow down when in MS with LTscale set to 1 or a small value.


Set the virtual memory paging file to a larger size with a min and max rather than letting Windows handle it for you. Custom Size: Initial size = 3X ram (3GB ram = 9GB paging file size), maximum size = 4X ram.


In the same area as immediately listed above, instead of Advanced tab pick Visual Effects tab, pick adjust for best performance, then if you must go to custom and pick the few settings you can't do without.


Lower hardware acceleration setting, in Control panel, Display, settings, advanced, troubleshoot, move the hardware acceleration slider to the left one click and try it out, keep moving it right and watching for a change in performance and also fewer crashes. Find a setting you can live with.



-------------
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>


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