do not worry about the memory usage, actually linulinux is using different strategy to manage the memory. In windows, the application will use the memory only when they have to. In Linux, when the application is open, it will reserve some space for further use. That is why when you keep using the system, the memory usage will grow till 90%+. Though it looks scary but your system will still be fine.
^_^
Do not worry about the memory usage, it is not a big deal and it will not affect the performance.
For more details, read the kernel source then you will know..
Good luck and enjoy the linux power....
It do affect my system performance
when i start it up, with low memory usage, everything goes very smoothly, and it responds immediately.
but when the memory usage goes above 90%, when I try to open web browser, or even i open a new page in the same browser window, everything freezes for a while, sometimes even the mouse poiter hangs there for about 2 seconds, and the cpu usage keeps 100%.
I guess the cpu is trying to free some memory space for the new data.
btw, my system spec:
amd athlon xp 1600+,
msi mb (nforce 420D chipset)
256 kingstone ddr ram x 2
WD 80GB(8MB cache) + Seagate 30GB(2MB cache) + IBM 60GB(2MB cache)
but when the memory usage goes above 90%, when I try to open web browser, or even i open a new page in the same browser window, everything freezes for a while, sometimes even the mouse poiter hangs there for about 2 seconds, and the cpu usage keeps 100%.
I guess the cpu is trying to free some memory space for the new data.
btw, my system spec:
amd athlon xp 1600+,
msi mb (nforce 420D chipset)
256 kingstone ddr ram x 2
WD 80GB(8MB cache) + Seagate 30GB(2MB cache) + IBM 60GB(2MB cache)
Huasing Association 1999 - 2013