Performance of a shell script

namishtiwari · #1 (**permalink**) 08-20-2007

Hiii,
I wrote a shell script for testing purpose.

I have to test around 200thousand entries with the script.When i am doing only for 6000 entries its taking almost 1hour.If i test the whole testingdata it will take huge amount of time.

I just want to know is it something dependent on the configuration of machine.
Any suggestion how i can increase the efficiency of my script.

Thanks in advance.
Namish

vino · #2 (**permalink**) 08-20-2007

We can comment better if we see the script. As such, if you use external tools like cat, grep or something in a shell script, then you should see the mileage varying a lot.

See http://www.unix.com/shell-programmin...-complete.html as an example.

porter · #3 (**permalink**) 08-20-2007

Choose the language appropriate to the task.

Shells are very heavy users of process forking/execing.

Using a language like Perl, C, C++, Java may give a dramatic improvement because they are not continually starting new processes to do tiny tasks.

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