[fpc-pascal] Is such memory statistics possible?

[Jonas Maebe]

On 15 Aug 2011, at 12:03, Ludo Brands wrote:

> 100.00% (288,964,608B) (page allocation syscalls) mmap/mremap/brk,
> --alloc-fns, etc.
> ->37.20% (107,483,136B) 0x80C7DD3: SYSTEM_FPSYSCALL$LONGINT$LONGINT$$LONGINT
> (in /home/ludo/lazarus/lazarus)
> | ->37.20% (107,483,136B) 0x80C86DF:
> SYSTEM_FPMMAP$POINTER$LONGWORD$LONGINT$LONGINT$LONGINT$INT64$$POINTER (in
> /home/ludo/lazarus/lazarus)
> |   ->37.20% (107,483,136B) 0x80DE2EE: SYSTEM_SYSOSALLOC$LONGWORD$$POINTER
> (in /home/ludo/lazarus/lazarus)

Note that if you want to see what part of the memory allocation is due to the program and what part due to internal fragmentation in the memory manager, you should compile with -gv (or add the "cmem" unit as the first unit to the uses-clause of Lazarus). Then the program will use libc's malloc/free/realloc/..., and Valgrind will be able to track every allocation/deallocation individually.


Jonas