Thanks a lot for the help. It gave me a start (keywords for googling )...given below is the code for filling the memory in linux ....yes the swap is unavailable. The vendor installed it that way.
Code:
// blast.cpp - MEMORY STRESS TEST SCRIPT
//
// Note: This allocates huge blocks of memory and fills with 1
//
// MAINTENANCE HISTORY
// DATE AUTHOR AND DETAILS
// 15-12-09 BAS TR - ORIGINAL (modified)
//
//----------------------------------------------------------------------------79
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MEGABYTE 1024*1024
int main(int argc, char *argv[])
{
void *myblock = NULL;
int count = 0;
char ch,*mem;
if ( argv[1] == NULL ) {
printf("usage: blast <memmory space>\n");
exit(0);
}
int memReq = 0;
memReq = strtol (argv[1],&mem,10);
//while (1)
while (count < memReq)
{
myblock = (void *) malloc(MEGABYTE);
if (!myblock) break;
memset(myblock,1, MEGABYTE);
printf("Currently allocating %d MB\n", ++count);
}
do {
printf("Hit 'y' to exit...\n");
scanf("%c",&ch);
} while ( ch == 'y' );
free(myblock);
exit(0);
}
When allocating memory for two different nodes, the resulting memory are the same. Clearly, this will lead to a mistake. This happened in a function. And the process must be in a function.
(gdb) p tree->list
$43 = (node *) 0x8be4180
(gdb) p tree->list
$44 = (node *) 0x8be4180
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Actually for a process to run it needs text, stack , heap and data segments. All these find a place in the physical memory.
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to allocate memory in chunks of... (1 Reply)
Hi,
Your great help is very appreciated. I am looking for any Unix command or tool for doing Stress/Load test of php files at command prompt.
I tried torture.pl but it is not working after20 concurrent threads/users.
as it is very urgent for me..please suggest ur ideas asap.
thanks (5 Replies)
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for(int z=0;z<2;z++)
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Discussion started by: dare99
1 Replies
LEARN ABOUT DEBIAN
linux::distribution::packages
Linux::Distribution::Packages(3pm) User Contributed Perl Documentation Linux::Distribution::Packages(3pm)NAME
Linux::Distribution::Packages - list all packages on various Linux distributions
SYNOPSIS
use Linux::Distribution::Packages qw(distribution_packages distribution_write);
$linux = new Linux::Distribution::Packages({'format' => 'csv', 'output_file' => 'packages.csv'});
$linux->distribution_write();
# Or you can (re)set the options when you write.
$linux->distribution_write({'format' => 'xml', 'output_file' => 'packages.xml'});
# If you want to reload the package data
$linux->distribution_packages();
DESCRIPTION
This is a simple module that uses Linux::Distribution to guess the linux distribution and then uses the correct commands to list all the
packages on the system and then output them in one of three formats: native, csv, and xml.
Distributions currently working: debian, ubuntu, fedora, redhat, suse, gentoo, slackware, redflag.
The module inherits from Linux::Distribution, so can also use its calls.
EXPORT
None by default.
TODO
* Add the capability to correctly get packages for all recognized distributions. * Seperate out parsing from writing. Parse data to hash
and give access to hash. Then write the formatted data from the hash.
AUTHORS
Judith Lebzelter, <judith@osdl.org> Alberto Re, <alberto@accidia.net>
COPYRIGHT AND LICENSE
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.5 or,
at your option, any later version of Perl 5 you may have available.
perl v5.10.1 2006-04-19 Linux::Distribution::Packages(3pm)
12-14-2009
)...given below is the code for filling the memory in linux ....yes the swap is unavailable. The vendor installed it that way.