when startup, the memory usage is very low, around 20%.
but it keeps growing while using, and keeps above 90% finally.
how to get it down?
any suggestion on this?

I did it exactly as you descrbed.
But it's still not working on my linuxbox.
I need chinese input in english localed~~~~
:(

linux 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....

details, otherwise there is only god can guess out your error
^_^
Linux is quite different from windows....
many distributions...many versions....

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)

The system performance concerns many aspects, not just memory allocation. This memory allocation is just the way that linux OS does. And it is proved to be relatively efficient.

Your case is different.

I do not know what web browser you are using. I guess probably it is Mozilla/Netscape. Actually one of the biggest problem in mozilla development is the startup speed is very slow. And the web browser is a big resource consumer. So if your linux box is not customized very well. Then this high demand browser may cause some problems.

And, after you start the machine for a while, it becomes slow. Do you ever try to figure out what application takes up the resources? More information should be collected, or we are just guessing the error. There may be some applications take up too much resources(CPU usage for example.) e.g. by default, there are several system maintenance applications running, such as updatedb ... Those applications are running in the backgroud, which will consume your system resource also.If you just open your web browser at that time. Then the problem may occur.

The video card should be considered, too. Is the driver the latest one? Is the video card function correctly? Some physical problems can also cause the system running slow, or even hang. e.g. the OpenGL part of my video card got problem, and I am using the openGL driver to do the X displaying. Thus, the X server will often hang due to the hardware problem. I replace the driver. Then everything is ok.

Also, are you using font server? those font render is a big consumer. Try to configure the box without those font renders, they will make the system very slow and not stable.

.......

Actually your machine is much better than mine. Since my linux box is functioning quite ok, yours should be ok also .

^_^ Good luck and have a try.

try to uninstall miniChinput first, don't think whether it is because that.
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by小男孩

it should be 1-1.5 times of your ram. if your swap is too small, it is possible for the system to be slower and slower.
by小男孩