On Thu, 18 May 2017, Simon Slavin wrote:
On 18 May 2017, at 5:10pm, Bob Friesenhahn <bfrie...@simple.dallas.tx.us> wrote:
Does anyone know why using 'PRAGMA cache_size=0' (or some other small value) to
attempt to decrease memory usage (and it is reported as immediately decreased
in the shell by .stats) actually significantly increases heap memory usage?
Which OS ?
Linux with uclibc.
What are you using to report heap memory size/usage ?
A Python script named 'ps_mem.py' which is available from
"https://github.com/pixelb/ps_mem";. It tallies data from /proc so it
is very accurate about actual usage.
It is not clear to me if setting the pragma jumbles up the heap a bit
so more memory is consumed, or if the cache is more efficient than the
alternative.
Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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