Woody Wu wrote:
> What I used is sqlite 3.7.5, but the doc says that memory-mapped io
> only started from 3.7.17.
>
> So, what are used for the huge VSZ in my sqlite application?

Some other data.  The page cache doesn't get that big by default,
so probably some temporary data.

> I am afraid, when the VSZ of a process goes too large, it could
> trigger some kind of system bug.

The OOM killer?

> I've been always bothered with a sqlite "disk image malformed"
> issue after my application run a long time.

<http://www.sqlite.org/howtocorrupt.html>


Regards,
Clemens
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