Sponsored Content
Full Discussion: ulimit
Top Forums UNIX for Advanced & Expert Users ulimit Post 302217010 by Perderabo on Monday 21st of July 2008 09:48:18 PM
Old 07-21-2008
data is the size of the data segment of a process. This is similiar to stack which is a limit on the stack segment of a process. file is the limit of a data file on disk (or more generally, a file in a filesystem).

unlimited means that the ulimit facility imposes no artificial limit of its own. But everything in a computer is finite. Eventually you will bump into some other limit.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

ulimit -d

All I am trying to do ulimit -d unlimited and I get "sh: ulimit: The specified value exceeds the user's allowable limit." Can someone please help me understand, how to change this! Thanks (1 Reply)
Discussion started by: adadevil
1 Replies

2. UNIX for Dummies Questions & Answers

ulimit

Hi, system aix 4.3 when I execute umilit i get result "unlimited". why cant i ftp or extract from media filesize over 2gig.... e.g FS /test/testy is large file enabled. any help will be greatly appreciated. thnx (3 Replies)
Discussion started by: Student37
3 Replies

3. Solaris

ulimit

Hi, I need to increase the open files on my server to run a test. Usually what I do is: ulimit -n 5000 My questions are: 1] I want to set this parameter once and for all. What is the right parameter to set in /etc/system: rlim_fd_max or rlim_fd_cur? 2] How to make sure that this... (1 Reply)
Discussion started by: melanie_pfefer
1 Replies

4. UNIX for Advanced & Expert Users

ulimit nofiles

Hi, We have an AIX system on oslevel 5.2 and we have the current limits set for the user "XXX" time(seconds) unlimited file(blocks) unlimited data(kbytes) 1024000 stack(kbytes) 32768 memory(kbytes) unlimited coredump(blocks) 2097151... (4 Replies)
Discussion started by: jerardfjay
4 Replies

5. SCO

problem with ulimit

hi, i cant set ULIMIT for normal user (file size more than 2gb).but in root user it is working fine.in user it is giving error like "limit exceeded (priviledged user)". (2 Replies)
Discussion started by: prakrithi
2 Replies

6. HP-UX

ulimit -c unlimited

Hi, I want to set the coredump to unlimited, but it seems it does not work. > ulimit -a time(seconds) unlimited file(blocks) unlimited data(kbytes) 1048576 stack(kbytes) 131072 memory(kbytes) unlimited coredump(blocks) 4194303... (1 Reply)
Discussion started by: mr_andrew
1 Replies

7. Solaris

ulimit

how do i check the ulimit set on my server.. ca i know whats the command ?? thanks in advance .. (5 Replies)
Discussion started by: expert
5 Replies

8. AIX

nofiles in ulimit

Hi all, What are the nofiles in ulimit for? How can these affect the server performance? What are the desired values for this? below is the result of ulimit -a on the server. time(seconds) unlimited file(blocks) unlimited data(kbytes) unlimited stack(kbytes) ... (1 Reply)
Discussion started by: guzzelle
1 Replies

9. Solaris

ulimit

Hello, could you help me please? I write in command line: "ulimit 500" -> i've set the max size of 512-bytes blocks that i can write in one file. But when after it i use ulimit.3c in my program: "ulimit(UL_GETFSIZE);" the result turns out 1000. Why is it so? They always differ so that one is... (2 Replies)
Discussion started by: Zhenya_
2 Replies

10. Linux

ulimit -n

Hi im a complete noob to shell commands but here is my problem i have a dedicated server i7 with 24 gig ram i have whm/cpanel on it now ive added a minecraft system to root but i cannot set the server to more than 512mb memory i was told its because the memory is being blocked and was told to... (7 Replies)
Discussion started by: gazzac
7 Replies
POSIX_GETRLIMIT(3)							 1							POSIX_GETRLIMIT(3)

posix_getrlimit - Return info about system resource limits

SYNOPSIS
array posix_getrlimit (void ) DESCRIPTION
posix_getrlimit(3) returns an array of information about the current resource's soft and hard limits. Each resource has an associated soft and hard limit. The soft limit is the value that the kernel enforces for the corresponding resource. The hard limit acts as a ceiling for the soft limit. An unprivileged process may only set its soft limit to a value from 0 to the hard limit, and irreversibly lower its hard limit. RETURN VALUES
Returns an associative array of elements for each limit that is defined. Each limit has a soft and a hard limit. List of possible limits returned +-----------+---------------------------------------------------+ |Limit name | | | | | | | Limit description | | | | +-----------+---------------------------------------------------+ | core | | | | | | | The maximum size of the core file. When 0, not | | | core files are created. When core files are | | | larger than this size, they will be truncated at | | | this size. | | | | | totalmem | | | | | | | The maximum size of the memory of the process, | | | in bytes. | | | | |virtualmem | | | | | | | The maximum size of the virtual memory for the | | | process, in bytes. | | | | | data | | | | | | | The maximum size of the data segment for the | | | process, in bytes. | | | | | stack | | | | | | | The maximum size of the process stack, in bytes. | | | | | rss | | | | | | | The maximum number of virtual pages resident in | | | RAM | | | | | maxproc | | | | | | | The maximum number of processes that can be cre- | | | ated for the real user ID of the calling process. | | | | | memlock | | | | | | | The maximum number of bytes of memory that may | | | be locked into RAM. | | | | | cpu | | | | | | | The amount of time the process is allowed to use | | | the CPU. | | | | | filesize | | | | | | | The maximum size of the data segment for the | | | process, in bytes. | | | | |openfiles | | | | | | | One more than the maximum number of open file | | | descriptors. | | | | +-----------+---------------------------------------------------+ EXAMPLES
Example #1 Example use of posix_getrlimit(3) <?php $limits = posix_getrlimit(); print_r($limits); ?> The above example will output something similar to: Array ( [soft core] => 0 [hard core] => unlimited [soft data] => unlimited [hard data] => unlimited [soft stack] => 8388608 [hard stack] => unlimited [soft totalmem] => unlimited [hard totalmem] => unlimited [soft rss] => unlimited [hard rss] => unlimited [soft maxproc] => unlimited [hard maxproc] => unlimited [soft memlock] => unlimited [hard memlock] => unlimited [soft cpu] => unlimited [hard cpu] => unlimited [soft filesize] => unlimited [hard filesize] => unlimited [soft openfiles] => 1024 [hard openfiles] => 1024 ) NOTES
Note This is a not POSIX function, but is common on BSD and System V systems. If the system does not support this function, then it will not be included at compile time. This may be checked with function_exists(3). SEE ALSO
man page GETRLIMIT(2). PHP Documentation Group POSIX_GETRLIMIT(3)
All times are GMT -4. The time now is 08:14 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy