From the command line:
reports the wall clock time, and time in kernel and user mode.
Use a profiler
-- with gcc use the same options, but use grpof instead of prof
Or: call gettimeofday before the copy function is called, and then call it again after.
Subtract the two timeval structs to get the time.
man gettimeofday
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)
Hi,
I would like to display the exact time taken to complete running a particular tool or function or program to user
I don't know the exact time functions in unix, please help me
thanks in advance
Example:
$test.ksh
output should be
The... (10 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)