On 4/6/07, Magiclouds Magicloud <[EMAIL PROTECTED]> wrote:
Dear,
Maybe I did not descript it correctly. En...I mean, if I have a
private java app to be run on openSuSE, and now I have a machine with
2G memory and 2 cpu. But the app seems running slowly. Maybe the app
needs more memory, or more cpus. But I do not want to just buy some.
So I have a test plan: first, remove 1G of memory, and test the speed;
then undo with the memory, and remove a cpu, and test the speed. So I
can see whether memory or cpu matters. But I think it is unsafe to
modify the hardware, may cause some damage. So I want to have the
system functions to simulate the situation.
Problems with removing a physical module is that you will lose dual
channel. However, limiting the RAM may also do the same if the RAM
limiter only address the first chip, you will lose the dual channel,
which can give a 50% performance boost. If you are running KDE, open
KInfoCenter and click on Memeory before you launch it to see how much
it changes. Or, you can use "top" from the command line for cpu
load(hit "1" to display cpus individually, and hit "s" then ".5" ENTER
to change the update interval from 3 seconds to .5 seconds. You can
also use "meminfo" for memory usage from the command line.
Why type of system is it? Processors and speed?
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