09-30-2011
Quote:
Originally Posted by
Azrael
You should probably use 'sleep' somewhere in your code. This would certainly help. But without your code there it would be hard to say where, or how long you should sleep.
I would consider that bad advice. If a sleep is not mandatory (such as when polling a resource at an interval), don't do it. What if the machine is otherwise idle when the script is run? Or very busy? What if the script is migrated to a different machine with more muscle? Or less? As circumstances change, in a futile attempt to achieve optimal system utilization, you'd need to tinker with the sleep time.
It's much better to let the operating system's scheduler handle prioritization. That's what it's there for. nice/renice, as Corona688 suggested, is a much better alternative.
Regards,
Alister
This User Gave Thanks to alister For This Post:
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sleep(3) Library Functions Manual sleep(3)
NAME
sleep - Suspends execution for an interval of time
LIBRARY
Standard C Library (libc.a) Threads Library (libpthreads.a)
SYNOPSIS
#include <unistd.h>
unsigned int sleep ( unsigned int seconds );
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
sleep(): XPG4, XPG4-UNIX
Refer to the standards(5) reference page for more information about industry standards and associated tags.
PARAMETERS
Specifies the number of seconds to sleep.
DESCRIPTION
The sleep() function suspends execution of a process for the interval specified by the seconds parameter. The suspension time may be
longer than requested due to the scheduling of other activity by the system.
In a multi-threaded environment, the sleep() function is redefined so that only the calling thread is suspended.
RETURN VALUES
If the sleep() function returns because the requested time has elapsed, it returns 0 (zero). If the sleep() function returns because it
caught a signal, the function returns the number of seconds remaining in the suspension.
RELATED INFORMATION
Commands: wall(1), shutdown(8) sleep(1)
Functions: sigaction(2), alarm(3), pause(3)
Standards: standards(5) delim off
sleep(3)