It wont make any difference if the memory mapping settings are just larger
than the file sizes, or a lot larger.... therefore fiddling with those
settings wont make any difference from your original test.

Generally when people see very high performance it is because a lot of the
data they are traversing over is already in memory, i.e. the caches are
warmed.  So is this test you are running just from a cold start, and if so
can you try the test twice, within the same vm that is.

On Tue, Sep 27, 2011 at 3:48 PM, Rick Devinsus <rick.devin...@gmail.com>wrote:

> I took a look at the files and none were larger than 500MB, however it
> makes
> a lot of sense to change the memory as you suggested so I altered the
> options as shown below.  I also started eclipse with different memory
> options than the defaults (eclipse -vmargs -Xmx2000m -server).  The changes
> didn't make it any faster though.
>
> I had read about people getting 2M traversals per second, since I'm only
> seeing around 65000/sec  I'm starting to think that represented the number
> of nodes searched through not the number returned based on the traversal's
> criteria.
>
>
> neostore.nodestore.db.mapped_memory=1.5G
> neostore.relationshipstore.db.mapped_memory=1.5G
> neostore.propertystore.db.mapped_memory=1.5G
> neostore.propertystore.db.index.mapped_memory=1.5G
> neostore.propertystore.db.index.keys.mapped_memory=50M
> neostore.propertystore.db.strings.mapped_memory=50M
> neostore.propertystore.db.arrays.mapped_memory=50M
>
> my file sizes:
> neostore.relationshipstore.db 500MB
> neostore.propertystore.db 383MB
> neostore.nodestore.db 137MB
> (others are all less than 1MB)
> the largest lucene node is 367MB
>
> --
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> http://neo4j-community-discussions.438527.n3.nabble.com/Traversal-performance-tp3371038p3371379.html
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