Given the increased complexity of processors and applications, the current generation of Operating Systems (OSs) focuses mostly on software integrity while partially neglecting the need to extract maximum performance out of the existing hardware.
Processors perform as well as OSs allow them to. A computing platform, embedded or otherwise, consists of not only physical resources – memory, CPU cores, peripherals, and buses – managed with some success by resource partitioning (virtualization), but also performance resources such as CPU cycles, clock speed, memory and I/O bandwidth, and main/cache memory space. These resources are managed by ancient methods like priority or time slices or not managed at all. As a result, processors are underutilized and consume too much energy, robbing them of their true performance potential.1.An advanced performance management solution
2.Extending to more dimensions
3.Implementation on VMX Linux
4.Benchmarks show the results
refer:
http://embedded-computing.com/articles/performance-management-new-dimension-operating-systems/
沒有留言:
張貼留言