Hello,
I'm on a mac trying to have the follow cmd list the files after touch, but very unsuccessful. Please can you help.
sort $BOTHFILE | uniq -u | xargs -I {} -t touch {} >> $LOGFILE ;
BOTHFile contents in form of
/directory/file.txt
thanx (3 Replies)
Hi
Hi! I'm currently using AIX 5.2 and would like to know where can i find to see that there's a restriction on the number of login times a user can have. Example, I want give a 2 login per user but some one to give 3 login and some one have to give unlit login time (without logging off the... (2 Replies)
Hi,
Would like to know where do i find these process limit on OS level as my MQ is prompting this error...
An attempt to create an MQ process was rejected by the operating system due to a process limit (2 Replies)
HI All,
Can anyone send me a command to find TOP 5 Memory consuming process.
It would be lelpful if I get output something like below
processname - pid - memory(in MB) - command
I tried few commands from the internet but the result only give the real memory usage or pagging, I want total... (4 Replies)
I'm having a problem increasing the Postfix 2.5 smtpd process limit to 200. Here's what I have tried so far:
1)
/etc/postfix/main.cf:
default_process_limit = 2002)
/etc/postfix/master.cf:
smtp inet n - - - 200 smtpd3)
/etc/postfix/master.cf:
smtp ... (0 Replies)
This is my first time writing a script and Im having some trouble,
Im trying to use the top command to monitor processes and the amount of CPU usage they require, my aim is to get an email if a process takes over a certain percentage of CPU usage
I tried grep
Obviosly that hasnt worked,
Any... (8 Replies)
I wanted to know how to find the memory taken by a process using top command. The output of the top command is as follows as an example:
Mem: 13333364k total, 13238904k used, 94460k free, 623640k buffers
Swap: 25165816k total, 112k used, 25165704k free, 4572904k cached
PID USER ... (6 Replies)
For instance, when I run ss -lptn | grep sshd , the output is as follows:
LISTEN 0 128 *:22 *:* users:(("sshd",1252,3))
1252 refers to the process id, but what does the 3 refer to ? (2 Replies)
I'm trying to create a minimal, crude keylogger for X using only a shell script. I was quickly stumped: Why do these two commands entered in a terminal emulator produce output when I type...
$ xinput test 6 | grep press
$ xinput test 6 | awk '{print $3}'
...but this command produces no... (13 Replies)
Discussion started by: DevuanFan
13 Replies
LEARN ABOUT LINUX
malloc_trim
MALLOC_TRIM(3) Linux Programmer's Manual MALLOC_TRIM(3)NAME
malloc_trim - release free memory from the top of the heap
SYNOPSIS
#include <malloc.h>
int malloc_trim(size_t pad);
DESCRIPTION
The malloc_trim() function attempts to release free memory at the top of the heap (by calling sbrk(2) with a suitable argument).
The pad argument specifies the amount of free space to leave untrimmed at the top of the heap. If this argument is 0, only the minimum
amount of memory is maintained at the top of the heap (i.e., one page or less). A nonzero argument can be used to maintain some trailing
space at the top of the heap in order to allow future allocations to be made without having to extend the heap with sbrk(2).
RETURN VALUE
The malloc_trim() function returns 1 if memory was actually released back to the system, or 0 if it was not possible to release any memory.
ERRORS
No errors are defined.
CONFORMING TO
This function is a GNU extension.
NOTES
This function is automatically called by free(3) in certain circumstances; see the discussion of M_TOP_PAD and M_TRIM_THRESHOLD in mal-
lopt(3).
This function cannot release free memory located at places other than the top of the heap.
This function releases only memory in the main arena.
SEE ALSO sbrk(2), malloc(3), mallopt(3)Linux 2014-05-28 MALLOC_TRIM(3)