07-09-2007
You can solve your problem with system call "gettimeofday" with below steps.
The steps are following:
1) The gettimeofday is called when child process begins executing.
2) The gettimeofday is called when child process finishes.
3) Then subs two results.
Best regards,
Iliyan Varshilov
Last edited by ilko_partizan; 07-09-2007 at 08:52 AM..
10 More Discussions You Might Find Interesting
1. Programming
Hi all,
There is a pearent process with 3 child processes, they work perfect. Pearent process read from file and separate data by blocks and send it to child processes, after that pearent read the result of work and just print it out to standart output. All interprocess communication maded through... (2 Replies)
Discussion started by: prodigal
2 Replies
2. UNIX for Dummies Questions & Answers
hello every one,
i want to know more about creation of child process.
UNDER WHAT CIRCUMSTANCES child process is created?
WHAT ARE THE PREREQUISITES for a child process to be created?
let us say we have a prog.c, prog.obj(compiled.c),.a\.out files.
is any child PROCESS CREATED... (12 Replies)
Discussion started by: compbug
12 Replies
3. UNIX for Dummies Questions & Answers
fork() system is used to create a child a process.lets consider fork() echo krace will print krace twice .if i give it in loop it will print krace 2 power n time..in this case all child and parent process executes same process ...but i want to create a four different child process to execute four... (4 Replies)
Discussion started by: kracekumar
4 Replies
4. Shell Programming and Scripting
Hi All,
I have two ksh script. 1st script calls the 2nd script and the second script calls an 'C' program.
I want 1st script to wait until the 'C' program completes.
I cant able to get the process id for the 'C' program (child process) to make the 1st script to wait for the second... (7 Replies)
Discussion started by: sennidurai
7 Replies
5. Shell Programming and Scripting
Hi ,
I want to find out the child process name given its PID. I have used the ps command but it displays the parent process name against child PID.
Is there any way to find out name of child program executing under any parent program? (1 Reply)
Discussion started by: sneha_heda
1 Replies
6. Shell Programming and Scripting
Hey all, I need to launch a script from within 2 other scripts that can run independently of the two parent scripts... Im having a hard time doing this, if anyone knows how please let me know.
More detail.
ScriptA (bash), ScriptB (ksh), ScriptC (bash)
ScriptA, launches ScriptB
ScirptB,... (7 Replies)
Discussion started by: trey85stang
7 Replies
7. Shell Programming and Scripting
!/bin/sh
pid=$(ps -Aj | grep MSTRSvr | grep -v grep | awk '{print $1}')
sid=$(ps -Aj | grep MSTRSvr | grep -v grep | awk '{print $3}')
ps -s "$sid"
I am not able to get the desired output it says process list error
if i use watch ps -s "$sid" it considers only the first session id (5 Replies)
Discussion started by: schippada
5 Replies
8. Emergency UNIX and Linux Support
Hello, everyone.
Here's a program:
pid_t pid = fork();
if (0 == pid) // child process
{
execvp ...;
}
I send a signal (such as SIGINT) to the parent process, the child process receive the signal as well as the parent process.
However I don't want to child process to receive the... (7 Replies)
Discussion started by: jackliang
7 Replies
9. Shell Programming and Scripting
Hi everyone
i am very new to linux , working on bash shell.
I am trying to solve the given problem
1. Create a process and then create children using fork
2. Check the Status of the application for successful running.
3. Kill all the process(threads) except parent and first child... (2 Replies)
Discussion started by: vizz_k
2 Replies
10. Shell Programming and Scripting
HI
Am trying to get child process id for a PID using ksh..
ps -ef | grep xntpd
root 3342472 2228308 0 12:17:40 - 0:00 /usr/sbin/xntpd
root 4522024 6488316 0 12:18:56 pts/0 0:00 grep xntpd
root 6291614 3342472 0 12:17:40 - 0:00 /usr/sbin/xntpd
Here now i... (1 Reply)
Discussion started by: Priya Amaresh
1 Replies
TIMES(3) BSD Library Functions Manual TIMES(3)
NAME
times -- process times
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <sys/times.h>
clock_t
times(struct tms *buffer);
DESCRIPTION
This interface is obsoleted by getrusage(2) and gettimeofday(2).
The times() function returns the value of time in CLK_TCK's of a second since 0 hours, 0 minutes, 0 seconds, January 1, 1970, Coordinated
Universal Time.
It also fills in the structure pointed to by buffer with time-accounting information.
The tms structure is defined as follows:
struct tms {
clock_t tms_utime;
clock_t tms_stime;
clock_t tms_cutime;
clock_t tms_cstime;
};
The elements of this structure are defined as follows:
tms_utime The CPU time charged for the execution of user instructions.
tms_stime The CPU time charged for execution by the system on behalf of the process.
tms_cutime The sum of the tms_utimes and tms_cutimes of the child processes.
tms_cstime The sum of the tms_stimes and tms_cstimes of the child processes.
All times are in CLK_TCK's of a second.
The times of a terminated child process are included in the tms_cutime and tms_cstime elements of the parent when one of the wait(2) func-
tions returns the process ID of the terminated child to the parent. If an error occurs, times() returns the value ((clock_t)-1), and sets
errno to indicate the error.
ERRORS
The times() function may fail and set the global variable errno for any of the errors specified for the library routines getrusage(2) and
gettimeofday(2).
SEE ALSO
time(1), getrusage(2), gettimeofday(2), wait(2), clocks(7)
STANDARDS
The times() function conforms to IEEE Std 1003.1-1988 (``POSIX.1'').
BSD
June 4, 1993 BSD