How to free unused memory by Python

wxPython Users
1

Hi

This might be of interest. Basically try your program with python 2.5 and see if it gets any better.

http://evanjones.ca/python-memory.html

Regards,

···

–
Rune Devik
http://www.garageinnovation.org

On 8/27/07, Robert VERGNES robert.vergnes@yahoo.fr wrote:

Hello,

I have a python issue and not a wxpython… But as the wxpython mailing is is one of the best … you might have an idea…

I have made the following small test:

Before starting my test my UsedPhysicalMemory(PF): 555Mb

tf=range(0,10000000) PF: 710Mb ( so 155Mb for my List)
tf=[0,1,2,3,4,5] PF: 672Mb (Why? Why the remaining 117Mb is not freed?)
del tf PF: 672Mb (unused memory not freed)

So changing the list contents and/or deleting the list changes nothing…from a memory point of view.

This is a problem as I have several applications/threads competing for memory share. (ie wxpython app).

So how can I force Python to clean the memory and free the memory
that is not used?

Any ideas is welcome.

Thanx

Robert

Ne gardez plus qu’une seule adresse mail ! Copiez vos mails vers Yahoo! Mail

2

well, actually I get the same results as you do with python 2.5 as well…

···

On 8/27/07, Rune Devik <rune.devik@gmail.com > wrote:

Hi

This might be of interest. Basically try your program with python 2.5 and see if it gets any better.

http://evanjones.ca/python-memory.html

Regards,

–
Rune Devik
http://www.garageinnovation.org

On 8/27/07, Robert VERGNES < > robert.vergnes@yahoo.fr> wrote:

Hello,

I have a python issue and not a wxpython… But as the wxpython mailing is is one of the best … you might have an idea…

I have made the following small test:

Before starting my test my UsedPhysicalMemory(PF): 555Mb

tf=range(0,10000000) PF: 710Mb ( so 155Mb for my List)
tf=[0,1,2,3,4,5] PF: 672Mb (Why? Why the remaining 117Mb is not freed?)
del tf PF: 672Mb (unused memory not freed)

So changing the list contents and/or deleting the list changes nothing…from a memory point of view.

This is a problem as I have several applications/threads competing for memory share. (ie wxpython app).

So how can I force Python to clean the memory and free the memory
that is not used?

Any ideas is welcome.

Thanx

Robert

Ne gardez plus qu’une seule adresse mail ! Copiez vos mails vers Yahoo! Mail

–
Rune Devik
http://www.garageinnovation.org