[kepler-dev] Kepler timing data

Chad Berkley berkley at nceas.ucsb.edu
Tue Feb 6 09:47:36 PST 2007


I've been doing some messing around with timing various kepler 
activities.  The results are below.

Kepler tests on P4 3 GHz with 2 GB RAM
-------------------------------

Startup time with no actors in the kar directory: 10 sec

Startup time with all actors in the kar directory: 20 sec

Query time with remote search enabled and 329 components in the library 
(with NO local actors):  8 sec

Query time with remote search enabled and 329 components in the library 
(WITH local actors):  10 sec

Query time on http://library.kepler-project.org (same query): 1 sec.

Query time with remote search disabled (WITH local actors): < 1 sec
--------------------------------

One way to speed up our startup time (in fact, cut it in half) is to 
release a version of kepler with no actors pre-installed in the library 
and allow people just to use the components off the online repository 
(as we talked about in the last SEEK meeting).  It seems the only 
problem with this is that it slows down the search time for components. 
  I think the reason the search in Kepler is so much larger than just 
searching on the web site is that there is overhead with moving the data 
through the ecogrid interface.  There is also overhead in dynamically 
generating the results tree in kepler.  IMO, 8 seconds isn't too bad (it 
could be better) but we should probably put a status bar or something in 
there so people don't think its locked up.

thoughts?

chad


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