10 More Discussions You Might Find Interesting
1. Programming
I have noticed the difference in byte swap timing between two Ubuntu systems. The bswap_32 used to work just fine on the old system, but on the new one it lags behind home-grown swap.
My code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <byteswap.h>
#include... (4 Replies)
Discussion started by: migurus
4 Replies
2. Red Hat
-> We have 2 servers server1 and server2 server.
->server1 is master application and server2 is slave application server. ->output of server1 hardware and slave timing:
# hwclock --show Thu 05 Jun 2014 05:34:08 PM SGT -0.465666 seconds # date Thu Jun 5 17:34:16 SGT 2014
# cd... (6 Replies)
Discussion started by: manjusharma128
6 Replies
3. Shell Programming and Scripting
I have two shell scripts, one written with xargs for parallel processing (p1) and the other written in old school way (p3) .
when I execute them, i get the below values.
$ time ./p1
real 0m25.36s
user 0m0.32s
sys 0m0.80s
$ time ./p3
real 0m23.25s
user 0m6.20s
sys ... (4 Replies)
Discussion started by: luhah
4 Replies
4. Shell Programming and Scripting
i have a very big script i have that i'd like to add a timeout to.
this script runs on a several remote host. i update this script with timeout clause and then copy it over to all the hosts on which it is currently on.
basically, i want the timeout to make the script abort/exit if it's... (1 Reply)
Discussion started by: SkySmart
1 Replies
5. Programming
I was running some timings in my code to see which of several functions was the best and I've been getting some odd results. Here's the code I'm using:
static double time_loop(int (*foo)(int)) {
clock_t start, end;
int n = 0, i = 0;
start = clock();
for (; i <= MAXN; i++)
if... (6 Replies)
Discussion started by: CRGreathouse
6 Replies
6. Programming
Hello there, I just needed to know how to get the timing right when using the gcc __builtin_prefetch() function, that is, how many instructions before the actual utilization of the data should I make the prefetch call.
I will be measuring the L1 cache hit rate with valgrind's cachegrind,... (3 Replies)
Discussion started by: Tavo
3 Replies
7. Programming
hi everyone. If you have a function created in your code and you want to find out how long it takes for it to run you can use a struct called gettimeofday().
so lets say we have a function like this
int myfunction (int r)
{
/*some math calculations*/
return answer;
}
How do i set up... (3 Replies)
Discussion started by: bebop1111116
3 Replies
8. AIX
Hello everyone,
I have a script thats acting funky, what I would like to do is report to a file, how long its taking to get to certain area's, in seconds. For example.
-- Start timer
-- Run unix command 1
-- Run unix command 2
-- Stop timer
-- Report Seconds
-- etc etc
Is there a way... (3 Replies)
Discussion started by: dbridle
3 Replies
9. Shell Programming and Scripting
I need to make it so an autmated process which involves ssh, times out if ssh prompts for a password. Most of the time it shouldnt prompt for a password. But if it does i need it to time it out or get a status and stop the ssh and log that the ssh failed and move onto the next server. Is there any... (9 Replies)
Discussion started by: rcunn87
9 Replies
10. Shell Programming and Scripting
hi guys..
i have a shell script that loops through a certain directory to see if a file has been created and then prints the file if it exists...
the only problem i have now is that sometimes the flat does not get created by the program thats supposed to create it, in this scenario, my loop... (1 Reply)
Discussion started by: wolkott
1 Replies
