a question about running script`s priority

koshihaku · 09-10-2010, 02:42 AM

I run a script monitoring the memory of apache server processes, and the script will putput the data to log file every 20 seconds. But maybe becaused the server is saturated, sometimes the time interval of records in output log file is not stable, sometimes several minutes, sometimes longer than one hour.

I tried to use renice the process of the script, but it didn't get well much. Is there a better way to highten the priority of the running script or other way to make it work well?

Thank you !

chrism01 · 09-10-2010, 03:38 AM

There might be something odd about your script, but in any case, only root can raise the priority of a process above the default for the non-root user.
In some cases, if the amt of data in each rec is small, you may be 'suffering from buffering' eg http://perl.plover.com/FAQs/Buffering.html. That page talks about Perl, but the principle is the same regardless of language.