12-18-2008
The OS is Linux
Configuration is like this
Linux pi941c2n13 2.6.9-42.18.ELmsdw2smp #1 SMP Tue Nov 7 16:55:04 EST 2006 x86_64
I have checked using top and free both before and after the exceution of process.
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have a file {filename} which contains 65000 records
I need to split into 6 smaller files roughly 11000 records each.
Can someone advise me of the Unix command to do so ?
Many thanks (2 Replies)
Discussion started by: grinder182533
2 Replies
2. Shell Programming and Scripting
Hi,
I have a comma separated file with millions of records in it.
I have a requirement to split the file based on the value in a one of the columns.
Suppose i have a text file with columns like C1, C2,C3,C4
Column C4 can hold the values either 01 or 02 03 or 04.
I nned to extract... (2 Replies)
Discussion started by: Raamc
2 Replies
3. Shell Programming and Scripting
i am creating the file , when this file reaches the size 2 GB, i need one message or fire (4 Replies)
Discussion started by: kingganesh04
4 Replies
4. Shell Programming and Scripting
Hi friends,
I am new to unix. With the help of this site I wrote a script. But it's returning some errors pls help.:confused:
Here is my specifications:
I have a file obsrec_31583_090212.xls at /home/lingalma/temp/cdl I want it to mv to another temp folder called /home/lingalma/temp/obsrec... (6 Replies)
Discussion started by: raaj.manoj
6 Replies
5. UNIX for Dummies Questions & Answers
how would i split the file "file1" into smaller files containg lines of 15 (1 Reply)
Discussion started by: JamieMurry
1 Replies
6. Shell Programming and Scripting
I have a very big log file which looks like this:
I need to split this file and create files with "+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+" as the delimiter.
The file names need to be the contents of the next line after the delimiter(FIRST_ITEM,SECOND_ITEM...so on..). (7 Replies)
Discussion started by: engineer
7 Replies
7. Shell Programming and Scripting
Dear All,
I have a very large file which which i would like split into indvidual frames evrytime the line ends with "ENDMDL" and then name frame1.pdb frame2.pdb etc
can any one give me a few sugeestions? ideally i would like to have ENDMDL at the end of each frame or not pressent at all.
an... (4 Replies)
Discussion started by: Mish_99
4 Replies
8. Shell Programming and Scripting
Hi all,
i have file that looks like as below
2263881188,24570896,439,SOLO,SOLO_UNBEATABLE,E,+3.13,+0.00
2263881964,24339077,439,SOLO,SOLO_UNBEATABLE,F,-0.67,+0.00
2263883220,22619162,228,Bell,Bell_MONTHLY,E,-2.04,+0.00
2263883220,22619162,228,Bell,Bell_MONTHLY,F,-2.04,+0.00... (3 Replies)
Discussion started by: raghavendra.cse
3 Replies
9. Shell Programming and Scripting
Hello,
I want to split or cut a large size log file by year wise(eg 2009, 2010) .But the source file must not have the splited or cut lines after this process ,all of them must move to the destination folder.Does grep command have the fuctionality like cut and paste? I used grep -Ev command but... (17 Replies)
Discussion started by: jobycxa
17 Replies
LEARN ABOUT CENTOS
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>
void 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)
COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2012-03-29 MALLOC_TRIM(3)