create a string that forms the command as run in command line,
and you have to run this " command " with " popen "
which would execute and you have would have execution time in the pipe, which you need to parse it and display!
Just a pointer !
If you need more explanations, shoot !
Hi,
I need to time a certain function in my C/C++ code and I am experiencing some difficulties. I timed it using wallclock time so I know that it takes approximately 500-600 microseconds with
gettimeofday(&start, NULL);
// my function call
gettimeofday(&end, NULL);
answer = (end.tv_sec -... (2 Replies)
Hello
I have problem with function 'time' to test my program for file copying .
How to run the function in my source code ?
I try something like that:
system("time"); < -- but this don't working (2 Replies)
Hi All,
I am using solaris and nawk.
Is there any time function in nawk which is simliar to the shell `date` function ?
Can any experts show any examples? (4 Replies)
HI ,
I need to get the timedifference between two values... which funcation will help
eg: difference betweem 19:22 and 19:43 should give 21 mins (2 Replies)
hello everybody!
i want to post a question. So, I use the command 'time a.out' to time the duration of the program a.out. The return value of this function was:
real 0m4.116s
user 0m4.112s
sys 0m0.016s
What i want is! I try to find a way to get (NOT manually) the value of real time.... (2 Replies)
HI
I have a Red Hat Enterprise with Real Time kernel.
Are you aware if there are C functions for this kernel or some code/library for this OS for measuring time more lightweight than clock_gettime and gettimeofday? THe hardware I have is NUMA.
Reading forums I found gethrtime but it is... (1 Reply)
Hello, I have made a Linux Shell Script that downloads 6 files from the Internet and then deletes them. Now i want to use the function "/usr/bin/time" and "bc" to calculate how long the avergate run time for the shell script is. I therefore need to do it 100 times. My shell script code is below:
... (6 Replies)
I want to print the difference (in days) between ($7) and the oldest record date ($6) based on unique ID ($5) on a new field. In addition, I want to subtract oldest date from recent dates(in days) ($6) for each unique ID ($5).
Here is the data looks like
7 81 1 47 32070 2010-12-14 ... (11 Replies)
Hi guys and gals...
I am writing a piece of code that is dash compliant and came across this error.
I have put it in the OSX section as that is what I am using.
I have no idea what the 'dash' version is but was installed about 6 months ago.
MBP, OSX 10.12.6, default terminal running dash on... (4 Replies)
Discussion started by: wisecracker
4 Replies
LEARN ABOUT ULTRIX
time
time(1) General Commands Manual time(1)Name
time - time a command
Syntax
time command
/bin/time command
Description
The command lets the specified command execute and then outputs the amount of elapsed real time, the time spent in the operating system,
and the time spent in execution of the command. Times are reported in seconds and are written to standard error.
If you are using any shell except the C shell, you can give the command as shown on the first line of the Syntax section. If you are using
the C shell, you must use the command's full pathname as shown on the second line of the Syntax section. If you do not use the full path-
name, will execute its own built-in command that supplies additional information and uses a different output format.
The command can be used to cause a command to be timed no matter how much CPU time it takes. For example:
% /bin/time cp /etc/rc /usr/bill/rc
0.1 real 0.0 user 0.0 sys
% /bin/time nroff sample1 > sample1.nroff
3.6 real 2.4 user 1.2 sys
This example indicates that the command used negligible amounts of user and system time and had an elapsed time of 1/10 second (0.1). The
command used 2.4 seconds of user time and 1.2 seconds of system time, and required 3.6 seconds of elapsed time.
Restrictions
Times are measured to an accuracy of 1/10 second. Thus, the sum of the user and system times can be larger than the elapsed time.
See Alsocsh(1)time(1)