Zed has updated his second part with more experiments with different
JVM's and memory settings:
http://www.zedshaw.com/projects/ruby_odeum/odeum_lucene_part2.html
On Jun 2, 2005, at 12:27 AM, Robert Engels wrote:
I read all of Zed's posts on the subject and I feel he certainly
presents a
strong anti-Java
Most definitely an anti-Java leaning - but at least he's working on
being objective about it by measuring things :)
, if not anti-Lucene bias - maybe just pro Ruby.
He's quite pro-Lucene, and most definitely pro-Ruby. I consider
myself in those categories myself.
If you do not even adhere to the principle designer's "guidelines
to proper
usage", your tests are meaningless. It's akin to using a new flat
screen
monitor and claiming "boy, it has a fuzzy picture", because you didn't
follow the instructions that said "remove protective film before
using".
I concur with your sentiment and I've done what I can via e-mail with
him to educate him on my experience with Lucene and JVM garbage
collection. I'd encourage anyone who has the the time and
inclination to take him up on the request to show how to do it better
since he's made his code available.
Zed is using a very constrained test - which is probably very
UNCOMMON in
the real world of server based systems, to attempt to discern the
relative
performance characteristics of Lucene/Java/Ruby/etc. The tests may be
applicable in his poorly designed environment, but he presents his
limited
finding as "gospel", and that it should hold true in all cases. I
quote...
"For the people who have no clue (also known as "Executives")
here's the
information you need to tell all your employees they need to adopt the
latest and greatest thing without ever having to understand
anything you
read. Cheaper than an article in CIO magazine and even has big
words like
"standard deviation"." and then goes on to present his "statistically
correct" performance numbers.
Don't get me wrong - Zed is using inflammatory language. We should
work to not lower ourselves to speaking in that same tone but rather
objectively and nicely point out the errors of his ways. He's open
to that despite his caustic tone - at least from the e-mail exchanges
I've had with him.
Erik
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
