Disk Cache Manager based on Minix3 Microkernel : Design and Implementation

Abstract

Disk Cache Manager(DCM), a functional server of microkernel based, to improve the I/O power of shared disks is designed and implemented in this work. DCM interfaces other different servers with message passing through ports by serving as a system actor the multi-thread mode on the Minix3 micro-kernel. DCM proposed in this paper uses the shared disk logically as a Seven Disk and Sodd Disk to enable parallel I/O. DCM enables the efficient placement of disk data because it raises disk cache hit-ratio by increasing the cache size when the utilization of the particular disk is high. Through experimental results, we show that DCM is quite efficient for a shared disk with higher utilization.

Citrus Peel Extract Inhibits LPS-induced Cytokines Secretion in Macrophage

“…Citrus peel not only remove hazardous substances, such as antioxidant activity, but prevent circulatory diseases, anti-allergic, anti-bacterial, antiviral, and lipid-lowering effect, immune functioning, and capillaries mineralization have been reported. Chi et al [6], for antibacterial effects of extracts, Park et al [7], for the fermentation extract's antioxidant effects and increased enzyme activity of the citrus peel, Eun et al [8], for the effects in immune cell regulation to the mouse using the citrus peel and Jung et al [9], for the anti-arthritic effects using the citrus peel have been reported. Also the citrus peel contains a large amount of functional substances such as flavonoid, alkolid, lignin, monoterpenoid, sesquiterpenoid and triterpenoid having a high research value.…”