> > This is a multi-part message in MIME format... > > ------------=_1017501743-19779-347 > Content-Type: text/plain; > charset="iso-8859-1" > Content-Transfer-Encoding: 8bit > > I have installed openoffice.org in mdk 8.1. Before starting it the free was > as follows. > [root@localhost lvgandhi]# free > total used free shared buffers cached > Mem: 254528 148648 105880 128 4372 71012 > -/+ buffers/cache: 73264 181264 > Swap: 136544 0 136544
High 'frees' like that are usually the result of a large application closing - eventually that free space si returned to cache or disk buffers, or given back to applications, depending on your usage. > After opening opening openoffice and a word doc in it I got as follows > [root@localhost lvgandhi]# free > total used free shared buffers cached > Mem: 254528 248528 6000 9716 4960 131236 > -/+ buffers/cache: 112332 142196 > Swap: 136544 2948 133596 Well, that's normal - open office is a rather big application, so it'll grab what is available. > Mem: 254528 248368 6160 9716 4960 131236 > -/+ buffers/cache: 112172 142356 > Swap: 136544 2948 133596 > > As one can see memory is not freed after closing it. Does it mean there is > memory leak or any other problem. Anybody can explain this phenomenon? I'd say that's perfectly normal behavior. That's what the page cache is for (last # on the right): it caches frequently used memory pages in case they may be used again. If for instance you rerun openoffice, that should translate to quicker load time the next time you start it. Otherwise, that memory is reused for other things, depending on your usage. For instance, if you have an app that makes frequent disk seeks, the system will begin to increase the memory for disk buffers.
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