Re: BUG #3680: memory leak when excuting a SQL "select count(id) from chinatelecom;" - Mailing list pgsql-bugs

>>> On Tue, Oct 16, 2007 at  3:43 PM, in message
<200710162043.l9GKhGeF091013@wwwmaster.postgresql.org>, "ssurui"
<ssurui@gmail.com> wrote:=20
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> use top command observe the available memory
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top is not the best way to look at RAM usage.  Try free or other tools.
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> I find about 500MB memory is
> vanished after the SQL is executed.
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Meaning that it is used by the OS cache?  That would make sense,
given that you just read all the data pages for the table.
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-Kevin
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