Topic: Speed up a lisp routine

[cadabyss]

Chris,

Selecting 3000 blocks must consume a large portion of the running time if the system variable HIGHLIGHT is on.  Try turning it off and see if that helps.  Just a thought.

[Kerry]

<.. > below is a program that I have that checks the scale of a selection set of blocks, if it isnt right, it changes it.  however, the program is very slow when it runs - it takes about 6 seconds to correct 3000 blocks.  i'd like to reduce this to almost instant, if it is even possible.  Does anyone have an suggestion on how to make this run faster?

Code: [Select]

< .. >
Thanks,

Seems a little like complaining about loading the dishwasher.

Seriously ;
If it takes an hour of your time to reduce that 6 seconds to 4 seconds
.. assuming every drawing you use it on has 3000 blocks
It will take  1800 drawings to recover your time/effort.

some days it takes me 2 seconds to find the key I want on the keyboard

[Chris]

yes I understand, but when the program is being run everytime autosave fires, you are looking at 60 times a day (assuming you only work 6 out of 8 hours) so pay back is in a few weeks.  And I was hoping to reduce to 1 or 2 seconds.  I'm also looking to be able to use any info provided here for other programs in the future, If I can learn more efficient ways of programming, I can shave time off all the routines I write. 

[JohnK]

Ah, well thats a whole new animal --Procedure design-. Depends on what factors/criteria you want at the time; maintenance, portability, speed, etc.  There isnt a one good solution for every case. Use of, block structure, free or bound variables, etc...this is a HUGE subject.

[Chris]

It is a huge subject, but if I can pick up small parts here and there, it will make me a better programmer.

[JohnK]

Thats why i wrote an intro article on the subject. Have you read my `Methods' paper?

http://www.theswamp.org/index.php?topic=5203.0

[Chris]

Thats why i wrote an intro article on the subject. Have you read my `Methods' paper?

http://www.theswamp.org/index.php?topic=5203.0

not yet, but I have it downloaded and will read it.

[JohnK]

so whats your question then?

[Chris]

so whats your question then?

I'll let you know when I get done reading, and trying.