Non-GUI Application with small memory consumption...
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I've created an empty console project, added a new .cpp file, and written the following code:
#include <windows.h> void main() { Sleep(10000); }This simple code uses 600k of RAM... Furthermore, it opens a console window, but I suppose it's possible to hide it...
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Hello experts, I have the need to create a small, non-GUI application, which would consume no more than 300k~320k of memory... My code should also have the ability to use Win32 API. When I tried a "Win32 Application" project, even with no more than an empty WinMain() function, it consumes about 1000k of RAM... BTW, I use windows Task Manager to read memory consumption... What kind of project should I create? Any guidelines? I know C++ as a language, but have never actually written anything with it... Thanks in advance, Shy.
Shy Agam wrote:
even with no more than an empty WinMain() function, it consumes about 1000k of RAM
Are you sure, how did you measure this?
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Shy Agam wrote:
even with no more than an empty WinMain() function, it consumes about 1000k of RAM
Are you sure, how did you measure this?
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I've created an empty console project, added a new .cpp file, and written the following code:
#include <windows.h> void main() { Sleep(10000); }This simple code uses 600k of RAM... Furthermore, it opens a console window, but I suppose it's possible to hide it...
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In generated code, check which part displays console. Is "windows.h" the only header included or something else? Try not including header except which needed for Win32 API. Best Regards, Suman
rp_suman wrote:
In generated code, check which part displays console.
What do you mean by "In generated code"? Nothing was auto-generated...
rp_suman wrote:
Is "windows.h" the only header included or something else?
Yes, it's the only header included. However, when I included it and linked the project, basetsd.h was automatically added to the project as an external dependency.
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If I am not wrong the "Mem Usage" column of the task manager includes shared memory from loaded DLLs.
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rp_suman wrote:
In generated code, check which part displays console.
What do you mean by "In generated code"? Nothing was auto-generated...
rp_suman wrote:
Is "windows.h" the only header included or something else?
Yes, it's the only header included. However, when I included it and linked the project, basetsd.h was automatically added to the project as an external dependency.
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If I am not wrong the "Mem Usage" column of the task manager includes shared memory from loaded DLLs.
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Which version of vc++ you are trying? I am not sure, but there may be difference in memory between different versions of vc++(6.0, 7.0 and 8.0).
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Moak could be right, task manager may show not only the program size but linked DLLs etc.. You make sure, the memory size means runtime memory shown by task manager or just the exe file size. Whats the exe file size? Best Regards, Suman btw, my vc 2005 trial version has been expired, so I could not try, just telling ideas
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Shy Agam wrote:
My goal is to make the Mem Usage column display 320k or less...
Even though that is not the memory that the application will consume? Who is repsonsible for those requirements, would he consider using a root kit that hides the presence of the process from the task manager? Just kidding... you are misinterpreting the data returned from the task manager. What you see there is something like the size of the virtual address space in use which includes system DLLs... but no empty WinMain() application will use up 320K free system memory, how could an empty program waste multiple KB? See How big is my program[^]. Hope it helps :) /M
modified on Saturday, March 22, 2008 10:53 AM
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Shy Agam wrote:
My goal is to make the Mem Usage column display 320k or less...
Even though that is not the memory that the application will consume? Who is repsonsible for those requirements, would he consider using a root kit that hides the presence of the process from the task manager? Just kidding... you are misinterpreting the data returned from the task manager. What you see there is something like the size of the virtual address space in use which includes system DLLs... but no empty WinMain() application will use up 320K free system memory, how could an empty program waste multiple KB? See How big is my program[^]. Hope it helps :) /M
modified on Saturday, March 22, 2008 10:53 AM
Moak wrote:
Who is repsonsible for those requirements, would he consider using a root kit that hides the presence of the process from the task manager? Just kidding...
Hehe... That was funny... :) There's an existing app which consumes about 300k. It's basically the same as the one I'm supposed to write, but it lacks some basic must-have features/abilities, and needs some improvements... The goal is to keep this kind of memory usage, but improve the app, in order not to "pay a large price" for the improvements...
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Try (I didn't make a test) to change the
STACKlinker option [^] that defaults to1 MB. :)If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke -
Moak wrote:
Who is repsonsible for those requirements, would he consider using a root kit that hides the presence of the process from the task manager? Just kidding...
Hehe... That was funny... :) There's an existing app which consumes about 300k. It's basically the same as the one I'm supposed to write, but it lacks some basic must-have features/abilities, and needs some improvements... The goal is to keep this kind of memory usage, but improve the app, in order not to "pay a large price" for the improvements...
Shy Agam, I modified my last answer with a link to an article here on CP. Please have a look. /M
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Moak could be right, task manager may show not only the program size but linked DLLs etc.. You make sure, the memory size means runtime memory shown by task manager or just the exe file size. Whats the exe file size? Best Regards, Suman btw, my vc 2005 trial version has been expired, so I could not try, just telling ideas
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Shy Agam, I modified my last answer with a link to an article here on CP. Please have a look. /M
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It doesn't matter... I was put on certain constraints... I have to enforce them... Maybe I can remove dependencies from my app...(?) According to previous posts, it should affact the MemUsage column...
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It doesn't matter... I was put on certain constraints... I have to enforce them... Maybe I can remove dependencies from my app...(?) According to previous posts, it should affact the MemUsage column...
Shy Agam wrote:
I was put on certain constraints... I have to enforce them...
That's all well and good, but you must use the right tool to measure with. Task Manager is not that tool.
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