On Thu, Nov 13, 2003 at 14:54:31 -0500, Ed L Cashin wrote: > <Allan.Bezerra@indt.org.br> writes: > > > Hi, > > > > How a can get the heap size from a specific process? > > > > I saw that /proc file system don't provide this. > > What about the maps file? I have a test program that cats its maps > file, allocates 20 pages, writes to the first and last page, and then > cats the maps file again. The output is shown below, where you can > see a new VMA 20 pages in size in the "after" case: But they are virtual memory pages, NOT PHYSICAL. Only the two (the first and last) are actualy present in memory. > ecashin@marblerye tmp$ ./a.out > before > 08048000-08049000 r-xp 00000000 03:03 166489 /tmp/a.out > 08049000-0804a000 rw-p 00000000 03:03 166489 /tmp/a.out > 40000000-40013000 r-xp 00000000 03:03 196431 /lib/ld-2.2.5.so > 40013000-40014000 rw-p 00013000 03:03 196431 /lib/ld-2.2.5.so > 40014000-40015000 rw-p 00000000 00:00 0 > 4001c000-4012f000 r-xp 00000000 03:03 196434 /lib/libc-2.2.5.so > 4012f000-40135000 rw-p 00113000 03:03 196434 /lib/libc-2.2.5.so > 40135000-40139000 rw-p 00000000 00:00 0 > bfffe000-c0000000 rwxp fffff000 00:00 0 > after > 08048000-08049000 r-xp 00000000 03:03 166489 /tmp/a.out > 08049000-0804a000 rw-p 00000000 03:03 166489 /tmp/a.out > 0804a000-0805e000 rwxp 00000000 00:00 0 > 40000000-40013000 r-xp 00000000 03:03 196431 /lib/ld-2.2.5.so > 40013000-40014000 rw-p 00013000 03:03 196431 /lib/ld-2.2.5.so > 40014000-40015000 rw-p 00000000 00:00 0 > 4001c000-4012f000 r-xp 00000000 03:03 196434 /lib/libc-2.2.5.so > 4012f000-40135000 rw-p 00113000 03:03 196434 /lib/libc-2.2.5.so > 40135000-40139000 rw-p 00000000 00:00 0 > bfffe000-c0000000 rwxp fffff000 00:00 0 > ecashin@marblerye tmp$ > > > -- > --Ed L Cashin | PGP public key: > ecashin@uga.edu | http://noserose.net/e/pgp/ > > -- > Kernelnewbies: Help each other learn about the Linux kernel. > Archive: http://mail.nl.linux.org/kernelnewbies/ > FAQ: http://kernelnewbies.org/faq/ > ------------------------------------------------------------------------------- Jan 'Bulb' Hudec <bulb@ucw.cz> -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
