On Wed, 14 Sep 2011 11:37:45 +0200, Anton Ebertzeder
<[email protected]> wrote:
Greetings,
Heyhey!
this is my first post here, so I hope I made no mistakes. I also hope
this
is the correct part of mailinglist.
Yes, this is.
I would like to use WebKit on an embedded system. For this I need to know
how much memory the WebKit-Browser needs, especially if JavaScript is
used.
We don't use FastMalloc for JSValue so you can't measure JSC memory usage
through FastMalloc properly.
Based on your system, there should be different ways to measure memory
consumption.
I know it depends on many things, the page I view and so on… I’m only
interested in a generell overview. To count the memory at all I simply
added
a few lines of code to FastMalloc.cpp in source/JavaScriptCore/wtf
directory. I added a few lines of code to function
void* fastMalloc(size_t n) {…}
I simple write n to a global variable.
mem_counter_var += n;
With this way you can measure only heap allocated objects. You have to
consider that FastMalloc.cpp contains two fastMalloc function and
apparently only 1 is going to be compiled, it depends on conditionals
(USE_SYSTEM_MALLOC).
In a next step I subtract frees. The debugging show me that function
fastMalloc is used permanently, but I can’t find my count variable with
debugger. I also tried to simple printf the variable each time, but it
also
won’t give any result. In my opinion the modifications are not made. I
guess
that WebKit just copy some files and doesn’t compile the FastMalloc.cpp
with
my modifications
If you modified the right function you should see your variable.
My Question is now: Does anyone know how to (re)compile WebKit in such a
way that my modifications to be considered?
Check that your port is defining USE_SYSTEM_MALLOC=1 or not, and you can
find the proper fastMalloc function.
Hope anybody can help :)
Regards,
X47ru.x9090
P.S. Sorry for my bad English
Regards,
Zoltan
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