Registered: Jan 2003
From: an Igloo

Detect Free RAM?

How can we detect free RAM in the end-user machine?

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* Intel Core 2 DUO E6550 @ 2.33 GHz with 2 GB RAM
* Kubuntu 9.10 with kernel 2.6.31-14-generic.
* lighttpd, php5, perl, eruby, python.
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Registered: Oct 2001
From: Jerusalem, Israel

System does it again

PHP:

---


System::Alloc 32
Pop $1
System::Call "Kernel32::GlobalMemoryStatus(i) v (r1)"
System::Call "*$1(&i4 .r2, &i4 .r3, &i4 .r4,
  &i4 .r5, &i4 .r6, &i4.r7, &i4 .r8, &i4 .r9)"
System::Free $1
DetailPrint "Structure size (useless): $2 Bytes"
DetailPrint "Memory load: $3%"
DetailPrint "Total physical memory: $4 Bytes"
DetailPrint "Free physical memory: $5 Bytes"
DetailPrint "Total page file: $6 Bytes"
DetailPrint "Free page file: $7 Bytes"
DetailPrint "Total virtual: $8 Bytes"
DetailPrint "Free virtual: $9 Bytes"


---

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Registered: Jan 2003
From: an Igloo

wao

thanks !!!!

didn´t know that trick

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* Intel Core 2 DUO E6550 @ 2.33 GHz with 2 GB RAM
* Kubuntu 9.10 with kernel 2.6.31-14-generic.
* lighttpd, php5, perl, eruby, python.
* geany, HTML & CSS & JavaScript, mono, gtk+, QT4, wxWidgets, bash, openjdk.
* Next to use: Debian 6.0 or Ubuntu 10.04.

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Registered: Feb 2001
From: SFBA

in mirc, just type /stat

oh wait, you need moo.dll :P

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Registered: Jan 2003
From: an Igloo

Ok, try everything..... but how can we convert to MB in Nsis,
because the $4 return in Bytes ?

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* Intel Core 2 DUO E6550 @ 2.33 GHz with 2 GB RAM
* Kubuntu 9.10 with kernel 2.6.31-14-generic.
* lighttpd, php5, perl, eruby, python.
* geany, HTML & CSS & JavaScript, mono, gtk+, QT4, wxWidgets, bash, openjdk.
* Next to use: Debian 6.0 or Ubuntu 10.04.

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Registered: Oct 2001
From: Jerusalem, Israel

This one for example:
http://nsis.sourceforge.net/archive...e.php?pageid=78

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Registered: Jan 2003
From: an Igloo

jejeje...yeah...IntOp... does it !!!!

Thanks

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* Intel Core 2 DUO E6550 @ 2.33 GHz with 2 GB RAM
* Kubuntu 9.10 with kernel 2.6.31-14-generic.
* lighttpd, php5, perl, eruby, python.
* geany, HTML & CSS & JavaScript, mono, gtk+, QT4, wxWidgets, bash, openjdk.
* Next to use: Debian 6.0 or Ubuntu 10.04.

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Registered: May 2000
From:

I love system.dll.

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Registered: Feb 2008
From:

Old thread but I was trying to figure out how to determine how to detect the amount of system memory at install time and came across this via google.

This was very useful and got me on the right track. Most of our install targets are 64 bit systems so I needed a solution that could handle this (not 32 bit integer limited) and found I needed to use URL submitted by user. instead of URL submitted by user. . One key difference is that the structure passed to GlobalMemoryStatusEx, URL submitted by user., must have the structure size set (This isn't necessary with GlobalMemoryStatus and URL submitted by user.. If anyone's interested here's the code I used:

code:

  ## allocate
  System::Alloc 64
  Pop $0
  ## set
  # GlobalMemoryStatusEx requires structure size to set in 
  # MEMORYSTATUSEX instance passed in as argument
  System::Call "*$0(i 64, i 0, l 0, l 0, l 0, l 0, l 0, l 0, l 0)"
  ## call
  System::Call "Kernel32::GlobalMemoryStatusEx(i r0)"
  ## get
  System::Call "*$0(i.r1, i.r2, l.r3, l.r4, l.r5, l.r6, l.r7, l.r8, l.r9)"
  ## free
  System::Free $0
  ## print
  DetailPrint "Structure size: $1 bytes"
  DetailPrint "Memory load: $2%"
  DetailPrint "Total physical memory: $3 bytes"
  DetailPrint "Free physical memory: $4 bytes"
  DetailPrint "Total page file: $5 bytes"
  DetailPrint "Free page file: $6 bytes"
  DetailPrint "Total virtual: $7 bytes"
  DetailPrint "Free virtual: $8 bytes"
  DetailPrint "Free extended virtual: $9 bytes"

Last edited by testtube on 02-06-2008 at 08:32 AM

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Registered: Oct 2001
From: Jerusalem, Israel

You should add this code to the Wiki page:
http://nsis.sourceforge.net/Determi...e_System_plugin

And here are the links again so everyone can read them.

First link to GlobalMemoryStatusEx:
http://msdn2.microsoft.com/en-us/library/aa366589(VS.85).aspx

Second link to GlobalMemoryStatus:
http://msdn2.microsoft.com/en-us/library/aa366586(VS.85).aspx

Third link to MEMORYSTATUSEX:
http://msdn2.microsoft.com/en-us/library/aa366770(VS.85).aspx

Fourth link to MEMORYSTATUS:
http://msdn2.microsoft.com/en-us/library/aa366772(VS.85).aspx

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Registered: Feb 2008
From:

Just a heads up...

If you are going to manipulate values returned from the output of GlobalMemoryStatusEX use Math::Script instead of IntOp. IntOp functionality appears to be limited to signed 4 byte integers...

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Registered: Jun 2002
From: N/A

the system plugin has Int64Op

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IntOp $PostCount $PostCount + 1

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Registered: Feb 2008
From:

quote:

---

the system plugin has Int64Op

---

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Registered: Feb 2008
From:

on 64bit The following code

PHP:

---


System::Alloc 32
  Pop $1
  System::Call "Kernel32::GlobalMemoryStatus(i) v (r1)"
  System::Call "*$1(&i4 .r2, &i4 .r3, &i4 .r4, &i4 .r5,
                    &i4 .r6, &i4.r7, &i4 .r8, &i4 .r9)"
  System::Free $1
  
  ; $5 => Free RAM
  ; $4 => Total RAM
  IntOp $R5 $5 / 1048576 ; 1048576 = 1024*1024, or MegaX
  IntOp $R4 $4 / 1048576 ; 1048576 = 1024*1024, or MegaX
  MessageBox MB_OK "R5: $R5   5: $5   R4: $R4   4: $4"


---

Attachment: untitled.bmp
This has been downloaded 121 time(s).

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Registered: Feb 2008
From:

Have you read the entire thread? I would guess "no"...

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Registered: Feb 2008
From:

Hi,
Sorry for not reading the thread :-).
So after this code:

PHP:

---


System::Alloc 64
  Pop $0
  ## set
  # GlobalMemoryStatusEx requires structure size to set in
  # MEMORYSTATUSEX instance passed in as argument
  System::Call "*$0(i 64, i 0, l 0, l 0, l 0, l 0, l 0, l 0, l 0)"
  ## call
  System::Call "Kernel32::GlobalMemoryStatusEx(i r0)"
  ## get
  System::Call "*$0(i.r1, i.r2, l.r3, l.r4, l.r5, l.r6, l.r7, l.r8, l.r9)"
  ## free
  System::Free $0
  
  MessageBox MB_OK "TotalRAM: $3  FreeRAM: $4"
  IntOp $vTotalRAMtemp $3 * 1
  IntOp $vTotalRAM $vTotalRAMtemp / 1
  
  
  MessageBox MB_OK "TotalRAM: $vTotalRAM"
  ; $4 => Free RAM
  ; $3 => Total RAM
  
  IntOp $vTotalRAM $3 / 1048576 ; 1048576 = 1024*1024, or MegaX
  IntOp $vFreeRAM $4 / 1048576 ; 1048576 = 1024*1024, or MegaX
  MessageBox MB_OK "vTotalRAM: $vTotalRAM"


---

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Registered: Feb 2008
From:

In posts subsequent to the GlobalMemoryStatusEX post you'll find that you need to use System::Int64Op to do 64 bit math.

My code looks like:

code:

  System::Alloc 64
  Pop $0
  System::Call "*$0(i 64)"
  System::Call "Kernel32::GlobalMemoryStatusEx(i r0)"
  System::Call "*$0(i, i, l.r1, l, l, l, l, l, l)"
  System::Free $0
  ; convert bytes to megabytes
  System::Int64Op $1 / 1048576
  Pop $1

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Registered: Feb 2008
From:

THANKS ALOT!!!!!!!!!!!!

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