Are you tired of spending countless hours devoted to fixing memory faults? Do you find yourself constantly being bogged down in programs that leak memory, violate memory bounds, use uninitialized data, and devote an excessive amount of run time to memory management? Use this article to help you conquer these pesky memory defects.

Memory leaks and memory corruptions are problems that can be easily introduced in code written in C or C++ and generally in any programming language that does not have a garbage collector built in, causing system crashes and sometimes, even worse, unexpected behavior, creating bugs that are difficult to be detected.

The Linux memory management code does its best to ensure that memory will always be available when some part of the system needs it. That effort notwithstanding, it is still possible for a system to reach a point where no memory is available.

I want to write about Cassandra performance tuning, but first I need to cover some basics: how to use vmstat, iostat, and top to understand what part of your system is the bottleneck -- not just for Cassandra but for any system.

Dstat is a versatile replacement for vmstat, nfsstat, iostat, netstat and ifstat.

saidar is a text based tool for viewing the system statistics available through libstatgrab. Statistics include CPU, processes, load, memory, swap, network I/O, disk I/O, and file system information.

For most users, Firefox doesn't use an abnormally large amount of memory. For others, however, Firefox's memory consumption is a major problem (Especilaly for people using old computers with limited memory resources), in same cases memory usage in Firefox is due some to other sources, like number of plug-ins, themes and extensions.

Many times we face a situation when our Ubuntu Netbook becomes pretty slow. And when we check out our RAM, we find that only half of our RAM is used and the SWAP memory usage is gone upto 25% or 50% or even more. Confused??

versatile replacement for vmstat, iostat, netstat, nfsstat and ifstat. Dstat overcomes some of their limitations and adds some extra features, more counters and flexibility. Dstat is handy for monitoring systems during performance tuning tests, benchmarks or troubleshooting.