Fasm memory allocation (win32 console)

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pelaillo
Missing in inaction

Joined: 19 Jun 2003
Posts: 878
Location: Colombia

pelaillo 26 Sep 2003, 10:03

Privalov,
the following lines are taken from win32/system.inc file:

Code:

init_memory:
    push    buffer
      call    [GlobalMemoryStatus]
        mov     eax,dword [buffer+8] ;Total phisical memory
; proposed modification:
;        mov     eax,dword [buffer+12] ;Available phisical memory

The questions is:
Isn't it better to use the available memory instead of total?

26 Sep 2003, 10:03

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8353
Location: Kraków, Poland

Tomasz Grysztar 26 Sep 2003, 10:34

No, because on computers with low physical memory it will be usually almost whole used - but it still can be allocated from swap space. On the other hand, I'm not using value of all available memory (earlier fasm versions were doing it), because it is causing increase of swap file on many systems (people were complaining about it).

26 Sep 2003, 10:34

pelaillo
Missing in inaction

Joined: 19 Jun 2003
Posts: 878
Location: Colombia

pelaillo 26 Sep 2003, 11:46

Thanks, I see it now.

Do you have performed an analysis on how much memory is needed by fasm (statistically)?
The idea is to allocate a certain quantity of memory (minimum possible) depending on source size.

26 Sep 2003, 11:46

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8353
Location: Kraków, Poland

Tomasz Grysztar 26 Sep 2003, 11:59

The problem is that I can determine the source size before allocating memory, as I have to load source files to see the "include" directives within them.

26 Sep 2003, 11:59

pelaillo
Missing in inaction

Joined: 19 Jun 2003
Posts: 878
Location: Colombia

pelaillo 26 Sep 2003, 15:43

I've got an idea to overcome this. Idea

I will take this weekend to work on it.

26 Sep 2003, 15:43

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