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Thanks guys... i can see that even when the memory usage is 95%...my system shows no performance hit...confirming what you said and what the link suggested by Chris says... nice work by linux..:).. <BR>
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On Fri, 2005-05-13 at 10:42 +0100, Nigel Wade wrote:
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<FONT COLOR="#000000">sid wrote:</FONT>
<FONT COLOR="#000000">> Hi..</FONT>
<FONT COLOR="#000000">> I am new to linux. I recently installed fedora 3 on my laptop (Dell</FONT>
<FONT COLOR="#000000">> latitude D600, 1.6 Ghz, 1 GB RAM and 1 GB swap).This a scenario that i</FONT>
<FONT COLOR="#000000">> face. i login into my system for about 30-40 minutes working with</FONT>
<FONT COLOR="#000000">> eclipse java ide, evolution, a couple of terminals and one or two other</FONT>
<FONT COLOR="#000000">> programs. The memory usage shoots to 90%...i close all applications. and</FONT>
<FONT COLOR="#000000">> open just one terminal to run top. I still see more than 70% memory</FONT>
<FONT COLOR="#000000">> usage. Why is this. Is there a problem with my installation or do you</FONT>
<FONT COLOR="#000000">> guys face the same problem?</FONT>
<FONT COLOR="#000000">> The partial output of top after I have closed all applications is given</FONT>
<FONT COLOR="#000000">> below. I have used x and M to sort by memory usage to show you the</FONT>
<FONT COLOR="#000000">> processes using significant memory. Plz help...</FONT>
<FONT COLOR="#000000">> thanks</FONT>
<FONT COLOR="#000000">> Sid</FONT>
<FONT COLOR="#000000">> </FONT>
<FONT COLOR="#000000">> Tasks: 84 total, 1 running, 83 sleeping, 0 stopped, 0 zombie</FONT>
<FONT COLOR="#000000">> Cpu(s): 0.7% us, 0.3% sy, 0.0% ni, 98.7% id, 0.0% wa, 0.3% hi,</FONT>
<FONT COLOR="#000000">> 0.0% si</FONT>
<FONT COLOR="#000000">> Mem: 1035268k total, 702652k used, 332616k free, 33816k buffers</FONT>
<FONT COLOR="#000000">> Swap: 1108444k total, 0k used, 1108444k free, 419888k cached</FONT>
<FONT COLOR="#000000">The "419888k cached" is the important figure. This tells you that the system </FONT>
<FONT COLOR="#000000">currently has 400MB of physical memory being used for caching the </FONT>
<FONT COLOR="#000000">filesystem, thus greatly reducing the latency of filesystem access (if the </FONT>
<FONT COLOR="#000000">file is in the cache).</FONT>
<FONT COLOR="#000000">This is a Good Thing.</FONT>
<FONT COLOR="#000000">If the memory being used for the cache is needed for running programs it </FONT>
<FONT COLOR="#000000">will be released.</FONT>
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