--On Tuesday, June 08, 2010 1:01 AM +0200 Emmanuel Lecharny
<elecha...@gmail.com> wrote:
Hi guys,
today I finished to clean the rename() operation, and I just have the
three last operations remaining to be clean, ie move, moveAndRename and
compare.
In the meantime, I was able to avoid an Entry clone to be done, and this
has a huge impact on some operations. Here are the result I get with or
without the clone :
add : 578/s(with) / 607/s (without) / +5%
lookup : 19 568/s(with) / 26 542/s (without) / +36%
search : 19 727/s(with) / 19 560/s (without) / ---
modify : 1 991/s(with) / 2103/s (without) / +5%
delete : 248/s(with) / 248/s (without) / ---
As we can see, the lookup is really faster with such a modif. The other
operations aren't that much impacted, the cost of writing on disk kills
the gain we could have.
One more thing : this is a test done with one single thread, directly on
top of the core-session.
However, it demonstrates that with enough cache, and a good network
layer, we should be able to get some good performances out of the server.
Exciting. :) One of these days soon, I'll have a slamd perf lab again (HW
exists, waiting on installation), so I can draw up some numbers between
OpenLDAP, ApacheDS, and maybe some others.
--Quanah
--
Quanah Gibson-Mount
Principal Software Engineer
Zimbra, Inc
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