Hmmm. The question is what would I measure? Otis, do you know what implementation is used in Lucene (I am lost in hiearchy of readers/writers):
a) single thread for solving query b) more than one thread for a query (a) would mean that Lucene could solve queries more than 50% slower than in case (b). It would also mean, that Lucene's index is in optimal state when just one segment exists. And it also means that if you remove half of documents from a collection you have to rebuild one big segment to a smaller one, and so on... It would cost a lot of CPU/HDD time. So it looks like I would measure effect of random insert/remove operations. The problem is, how often I would call optimize in the test? Any thoughts? -g- On Tue, 26 Nov 2002, Otis Gospodnetic wrote: > No tests, just intuition that it's faster to find something in 1 file > than in 100 of them. If you do some tests, I'd love to hear the real > numbers :) > > Otis > > --- Leo Galambos <[EMAIL PROTECTED]> wrote: > > Did you try any tests in this area? (figures, charts...) > > > > AFAIK reader reads identical number of (giga)bytes. BTW, it could > > read > > segments in many threads. I do not see why it would be slower (until > > you > > do many delete()-s). If reader opens 1 or 50 files, it is still > > nothing. > > > > -g- > > > > On Tue, 26 Nov 2002, Otis Gospodnetic wrote: > > > > > This was just mentioned a few days ago. Check the archives. > > > Not needed for indexing, good to do after you are done indexing, as > > the > > > index reader needs to open and search through less files. > > > > > > Otis > > > > > > --- Leo Galambos <[EMAIL PROTECTED]> wrote: > > > > How does it affect overall performance, when I do not call > > > > optimize()? > > > > > > > > THX > > > > > > > > -g- > > > > > > > > > > > > > > > > -- > > > > To unsubscribe, e-mail: > > > > <mailto:[EMAIL PROTECTED]> > > > > For additional commands, e-mail: > > > > <mailto:[EMAIL PROTECTED]> > > > > > > > > > > > > > __________________________________________________ > > > Do you Yahoo!? > > > Yahoo! Mail Plus - Powerful. Affordable. Sign up now. > > > http://mailplus.yahoo.com > > > > > > -- > > > To unsubscribe, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > For additional commands, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > > > > > > > -- > > To unsubscribe, e-mail: > > <mailto:[EMAIL PROTECTED]> > > For additional commands, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > > > __________________________________________________ > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up now. > http://mailplus.yahoo.com > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
