On 31/01/11 22:44, Benson Margulies wrote:
On Mon, Jan 31, 2011 at 5:13 PM, Andy Seaborne
<[email protected]> wrote:
On 31/01/11 19:36, Benson Margulies wrote:
This call:
TDBLoader.load(tdbGraph, uncompressed, false);
on a stream of nquads, seems to be considerably faster than the
tdbloader2 command.
How much data?
633574
I found the cross over, when execurting standalone tdblaoder1, was in
the 800K to 1M range so that looks likely given java classloading foo.
TDBLoader.load is calling the core of tdbloader1
I had trouble working out how to get 'tdbloader' to eat a file of nquads.
TDBLoader.load(DatasetGraphTDB, String)
and it guesses the syntax from the string filename (.nq).
Maybe it should expose
TDBLoader.load(DatasetGraphTDB, String, Lang)
as well -- added to my ToDo (which is not a short list :-()
Andy
tdbloader2 is comparable or slower than tdbloader1 for 100K's of triples
because it's exec'ing external processes. What's more, TDBLoader.load does
not incur all the classloading overhead because it's already been done.
Andy
