hi guys,
we tested in a brute force manner a number of
PersistenceManagers in jackrabbit and found that
the system scales quite ok right now.
the load test we ran was to create a 1'000'000
nodes, saved() in batches of 1000 (almost) empty
unstructured nodes. now, keep in mind that this
is not a very realistic test since most content
repositories are much more bound to reading
than writing, but it can show some sense
of scalability.
so, the test creates a content repository structure:
/0/0
/0/1
/0/2
...
/0/999
/1/0
...
/999/999
interestingly enough the loadtests showed
that jackrabbit itself has no problem
whatsoever dealing with the resulting
2m items (1m nodes + 1m props).
the best results range around ~2-3s /
1k nodes added and saved on a single cpu intel
box, using jdk 1.5.
the worst ones range around ~30s per 1k
nodes.
the performance decay with respect to the size
of the content repository varies greatly between
persistence managers ;)
we will commit a couple of those new
persistence managers and configuration examples
shortly, which might also serve as examples for
people that want to develop their own persistence
managers.
regards,
david
----------------------------------------------------------------------
standardize your content-repository !
http://www.jcp.org/en/jsr/detail?id=170
---------------------------------------< david.nuescheler@day.com >---
This message is a private communication. If you are not the intended
recipient, please do not read, copy, or use it, and do not disclose it
to others. Please notify the sender of the delivery error by replying
to this message, and then delete it from your system. Thank you.
The sender does not assume any liability for timely, trouble free,
complete, virus free, secure, error free or uninterrupted arrival of
this e-mail. For verification please request a hard copy version.
mailto:david.nuescheler@day.com
http://www.day.com
David Nuescheler
Chief Technology Officer
Day Software AG
Barfuesserplatz 6 / Postfach
4001 Basel
Switzerland
T 41 61 226 98 98
F 41 61 226 98 97
|