Got the initial version running now. Had to change minor stuff only. Have no SQLServer installation so tested it on Sybase as this only meant very little changes in schema and query. Manual tests look good, need to run the testsuite and especially the concurrent tests...

Fixes on ACE still missing...

First impression on performance as compared to the file store. I tested a large file tree with a PUT, PROPFIND and READ (after a restart to clear caches) and DELETE. My machine is a 1.4GHz P4 with 512 MB RAM, DB machine is a 2x800MHz P3 with 1 GB RAM.

Results are to be considered very rough and preliminary, but there was no load on the DB machine and network seemed to be almost clear as well.

Astonishing results anyway! Why is propfind on the DB (isn't more or less "SELECT * from props" or so) so slow? Why is delete so slow?

I think some tunneling of requests directly to stores supporting complex actions would be a very good idea. Will discuss this in a different thread later...

Any other experice?

-----------------------------------------
J2EE store, compression ON

PUT ~ 55 secs

PROPFIND ~ 30-35 secs

READ ~ 30 secs

DELETE ~ 45 secs

-----------------------------------------
TX file store

PUT ~ 45 secs

PROPFIND ~ 12 secs

READ ~ 10 secs

DELETE ~ 35 secs





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