Monitoring Virtual Memory with vmstat
It isn't necessarily bad for your system to be using some of its swap space. But if you discover your system is often running low on physical memory and paging is causing performance to suffer, add more memory. If you can't add more memory, run memory-intensive jobs at different times of the day, avoid running nonessential jobs when memory demand is high or distribute jobs across multiple systems if possible.
Resources for this article: /article/8535.
Brian K. Tanaka has been a UNIX system administrator since 1994 with companies such as SGI, Intuit and RealNetworks. He is cofounder of Martingale-Oak, LLC. He can be contacted at email@example.com.
Webinar: 8 Signs You’re Beyond Cron
On Demand NOW
Join Linux Journal and Pat Cameron, Director of Automation Technology at HelpSystems, as they discuss the eight primary advantages of moving beyond cron job scheduling. In this webinar, you’ll learn about integrating cron with an enterprise scheduler.View Now!
- When Official Debian Support Ends, Who Will Save You?
- Ubuntu Ditches Upstart
- May 2015 Issue of Linux Journal: Cool Projects
- Video On Demand: 8 Signs You're Beyond Cron
- Picking Out the Nouns
- "No Reboot" Kernel Patching - And Why You Should Care
- Return of the Mac
- DevOps: Better Than the Sum of Its Parts
- Drupageddon: SQL Injection, Database Abstraction and Hundreds of Thousands of Web Sites