ulimit.h(3HEAD) Headers ulimit.h(3HEAD)NAME
ulimit.h, ulimit - ulimit commands
The <ulimit.h> header defines the following symbolic constants used by the ulimit() function.
UL_GETFSIZE Get maximum file size.
UL_SETFSIZE Set maximum file size.
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Interface Stability |Standard |
SEE ALSO ulimit(2), attributes(5), standards(5)SunOS 5.11 10 Sep 2004 ulimit.h(3HEAD)
Check Out this Related Man Page
ULIMIT(3) BSD Library Functions Manual ULIMIT(3)NAME
ulimit -- get and set process limits
Standard C Library (libc, -lc)
ulimit(int cmd, ...);
The ulimit() function will get and set process limits. Currently, this is limited to the maximum file size. The cmd argument is one of the
UL_GETFSIZE will return the maximum file size of the current process, in units of 512-byte blocks.
UL_SETFSIZE will attempt to set the maximum file size of the current process and its children, using the second argument (expressed as a
Upon successful completion, ulimit() returns the value requested; otherwise, the value -1 is returned and the global variable errno is set to
indicate the error.
The ulimit() function will fail if:
[EINVAL] The command specified was invalid.
[EPERM] The limit specified to ulimit() would have raised the maximum limit value, and the caller is not the super-user.
SEE ALSO getrlimit(2)STANDARDS
The ulimit() function conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
The ulimit() function first appeared in FreeBSD 5.0.
The ulimit() function provides limited precision for setting and retrieving process limits. If there is a need for greater precision than
the type long provides, the getrlimit(2) and setrlimit(2) functions should be considered.
BSD January 4, 2003 BSD
This means that I can open up to 1024 file per process? But wonder if there is any hardlimit imposed by Solaris 2.6 (eg 255) ?
By the way, is there any tool that can trace which files (or sockets) are opened by a process?
DY (5 Replies)
I have a Sun machine 5.8 and would like to modify the ulimit parameter for numner of file descriptors.
the output of plimit <process name> is:
resource current maximum
time(seconds) unlimited unlimited
file(blocks) ... (8 Replies)
I am working on AIX and i dont have permission for /etc/security/limits file.
In the man page of ulimit it is mentioned that it will get the limitations for me from /etc/security/limits file.
the file permission for ulimit command is
-r-xr-xr-x 15 bin bin ... (6 Replies)
I would like to set the maximum number or open files per process to be greater than 1024000 (for specific application scalability purpose). I am using RHEL 5.3/Ext4.
fs.file-max = 164766821
I also have added the folloing to /etc/security/limits.conf
* ... (7 Replies)
I need to increase the ulimit value permanently without changing /etc/system file. i.e nofiles descriptor.
For all NIS Users logging in.
I know the command to do this:
# ulimit -Sn 4096
This change is temporary.
So, I went on adding this command in the /etc/profile.
... (6 Replies)
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)
I have sparse root solaris-10 zone. I got a request to increase ulimit for a specific user on that zone from 1024 to 8192. Since this is sparse zone, so it doesn't have /etc/system and also I do not want to reboot server.
root@serv_ora1:/# ulimit -a
core file size (blocks, -c) unlimited... (6 Replies)
i'm a student in IT specially AIX.
I'm from france and i'm not very fluent in english.
My problem is about create an mksysb from a NIM MASTER
0512-005 mksysb: Backup Completed.urred for rootvg.
than thThe backup command completed with errors.
backup: The messages displayed on... (12 Replies)
what are the ideal/best/recommended ulimit settings for a root user in AIX?
I understand that it depends on our environment. But I would like to know...what are settings you guys use in your environment for best performance.
fsize = 2097151
core = 2097151
... (8 Replies)
I am having an issue with ellipse environment,
Subscribing ellipse version /opt/mincom/ellipse/bs037__ora_cics_svr
.profile: ulimit: exceeds allowable limit ,
prj -l ellsupp
stack(kbytes) 8192... (22 Replies)
I was trying to generate core dump of a process.But it is not generated.
While digging up the issue I found that Core File Size is set to 0.
I set it with #ulimit -c unlimited.After that I found the core file size is set to 0 (ulimit -a).I exit that session and again logged in.But found the core... (12 Replies)
I'm running apache (cswapache2) on a Solaris 11.3 server.
Recently, if I create a new vhost, the service fails to restart, and enters in maintenance mode.
If I comment lines with log files, the service starts again.
I guess I've reached the limit.
I checked the current values... (8 Replies)