Sponsored Content
Top Forums Programming Size of memory used by a program Post 302930423 by Don Cragun on Saturday 3rd of January 2015 04:32:35 PM
Old 01-03-2015
Assuming i, j, and k have been declared as type int; a portion of the data used by your program is:
3*dim*dim*sizeof(int) + a little bit of space for malloc() bookkeeping {for the malloc()'ed arrays} + 3*sizeof(int *)) {for the pointers} + 3*sizeof(int) {for your loop control variables}.
This User Gave Thanks to Don Cragun For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Program/ Memory Problems

I need some advise. I have an application server running several applications. When I try and start a particular application when the others are running I receive the following. This is appearing in the core file that is created. ... (1 Reply)
Discussion started by: dbrundrett
1 Replies

2. UNIX for Advanced & Expert Users

memory size under AIX

Hi, how to know size of physical memory under AIX ? Many thanks. PS : man -k memory man : 0703-310 Fichier man introuvable. uname -a AIX server1 1 5 005202DF4C00 (3 Replies)
Discussion started by: big123456
3 Replies

3. Programming

Measuring memory used by a program?

I have a Java program. I want to measure the total memory used by the program, especially the peak memory. Is there a way to do it? I have tried utilities like time (which returns 0) and top (which is not very useful) as the program does not run for long. Can anyone suggest a way to do this?... (5 Replies)
Discussion started by: spathical
5 Replies

4. Solaris

How to know the size of the program currently executing in memory

hey everybody, i am currently working on solaris 10 os on a m5000 server. my problem is when i want the exact size of a program in execution, i am unable to do it. earlier i thought the RSS field of prstat but because of its large size it cant be the size. pmap -x shows some output but it includes... (2 Replies)
Discussion started by: aryansheikh
2 Replies

5. UNIX for Advanced & Expert Users

Out of Memory error when free memory size is large

I was running a program and it stopped and showed "Out of Memory!". at that time, the RAM used by this process is around 4G and the free memory size of the machine is around 30G. Does anybody know what maybe the reason? this program is written with Perl. the OS of the machine is Solaris U8. And I... (1 Reply)
Discussion started by: lilili07
1 Replies

6. Solaris

Memory or CPU size

Is there a command or file I can look at that tells me how much real memory a machine has? A little background. In my shop we run a bunch of java programs, sometimes some of these jobs have config definitions that call for 2G. I would like to know how many I can run before I exhaust rescources. Any... (12 Replies)
Discussion started by: Harleyrci
12 Replies

7. AIX

Memory limit for C program

Greetings - I'm porting a C application to an AIX (6.1) system, and have bumped into the limits AIX imposes on memory allocation, namely the default limit of 256MB for a process. I'm aware of the compilation flag that allows an application to gain access to up to 8 memory segments (each 256MB,... (4 Replies)
Discussion started by: traviswheeler
4 Replies

8. Programming

Shared memory between two c program

i have to shared a variable between two different c programs with shared memory and i do these: int main() { int a=5,b=7; int buffer; int *point; int shmid; shmid=shmget(IPC_PRIVATE , sizeof(buffer),0666); point=(int *)shmat(shmid,NULL,0); point=a; ... (21 Replies)
Discussion started by: tafazzi87
21 Replies

9. Programming

Help regarding memory leak in this C program

I have written this code in C which reads a very large collection of text files and does some processing. The problem with this code is that there are memory leaks which I am not able to figure out as to where the problem is. When I run this code, and see the memory usage using top command, then I... (7 Replies)
Discussion started by: shoaibjameel123
7 Replies

10. UNIX for Dummies Questions & Answers

Getting file size from memory

i want to avoid writing to a file on the disk. i'd like to do this in memory. i have a situation where i'm running cat file.txt | head -l 2024 > /tmp/data.txt now, i check the size of the data.txt by doing a "du -sh /tmp/data.txt how can i get the size of "head -l 2024" WITHOUT having to... (2 Replies)
Discussion started by: SkySmart
2 Replies
elf32_fsize(3ELF)					       ELF Library Functions						 elf32_fsize(3ELF)

NAME
elf32_fsize, elf64_fsize - return the size of an object file type SYNOPSIS
cc [ flag ... ] file ... -lelf [ library ... ] #include <libelf.h> size_t elf32_fsize(Elf_Type type, size_t count, unsigned ver); size_t elf64_fsize(Elf_Type type, size_t count, unsigned ver); DESCRIPTION
elf32_fsize() gives the size in bytes of the 32-bit file representation of count data objects with the given type. The library uses version ver to calculate the size. See elf(3ELF) and elf_version(3ELF). Constant values are available for the sizes of fundamental types: Elf_Type File Size Memory Size ELF_T_ADDR ELF32_FSZ_ADDR sizeof(Elf32_Addr) ELF_T_BYTE 1 sizeof(unsigned char) ELF_T_HALF ELF32_FSZ_HALF sizeof(Elf32_Half) ELT_T_OFF ELF32_FSZ_OFF sizeof(Elf32_Off) ELF_T_SWORD ELF32_FSZ_SWORD sizeof(Elf32_Sword) ELF_T_WORD ELF32_FSZ_WORD sizeof(Elf32_Word) elf32_fsize() returns 0 if the value of type or ver is unknown. See elf32_xlatetof(3ELF) for a list of the type values. For the 64-bit class, replace 32 with 64 as appropriate. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Stable | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
elf(3ELF), elf32_xlatetof(3ELF), elf_version(3ELF), libelf(3LIB), attributes(5) SunOS 5.10 11 Jul 2001 elf32_fsize(3ELF)
All times are GMT -4. The time now is 03:03 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy