Nothing happens, because it _doesn't have to be resident_. On Sat, Mar 12, 2011 at 1:47 PM, ruslan usifov <ruslan.usi...@gmail.com> wrote: > > > 2011/3/11 Chris Burroughs <chris.burrou...@gmail.com> >> >> Is there an more or less constant amount of resident memory, or is it >> growing over a period of days? > > As said in cassandra wiki: > >>>>The main argument for using mmap() instead of standard I/O is the fact >>>> that reading entails just touching memory - in the case of the >>>memory >>>> being resident, you just read it - you don't even take a page fault (so no >>>> overhead in entering the kernel and doing a semi-context switch) > > > > So resident memory also will grow(but what happens when all physical memory > end i don't know) >
-- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
