|
Memory management is one of the most important factors that affect the overall
efficiency in operating system. A lot of memory management algorithms have
been presented. Each algorithm has its advantages and disadvantages, and
may be suitable for only some particular application programs. Moreover, most
operating systems only provide one or two kinds of different memory managements,
so that they cannot satisfy all kinds of different applications, especially
in embedded systems. If we would like to adopt different memory management
from the other operating system, we might have to port the whole operating
system on the hardware platform. It is time consuming and not economical.
In order to solve this problem, we propose a memory interface for different operating systems and a configurable operating system to use different memory
managements easily through the memory interface without modifying application
programs. We also insert some code segments in the kernel to analyze
memory performance. With the interface and analysis code segments, programmers
can analyze memory performance using different memory managements,
and objectively choose a memory management for best performance.
|