On 20/12/13 20:25, Rose Beck wrote:
Also I even checked the code...i think this whole reasoning is in sync.
Please correct me if I am wrong?
On Sat, Dec 21, 2013 at 1:51 AM, Rose Beck <rosebeck...@gmail.com> wrote:
Great answer..but after repeating the execution of the one would not get
cold cache time..right? So, I think --time is great for getting the cold
cache time used by Jena..right?
Yes - it'll amortize the cache warm up and JVM warm up (JIT on the code
speeds things up by a huge factor).
The weakness is that it is executing the exactly the same query each
time - that may not be a very useful test or it maybe useful, depending
on what you are testing. In BSBM for example, it takes templates and
inserts random values so it is not an identical query each time.
Andy
On Sat, Dec 21, 2013 at 1:43 AM, Andy Seaborne <a...@apache.org> wrote:
On 20/12/13 15:18, Rose Beck wrote:
So that means (if I am not wrong) that --time gives the cold cache time.
What you can do is use --repeat=X,Y which does X warmup repeats and then
Y actual executions. (see --help)
But these are really to compare effects of changing the query or, for
developers, different optimizations.
It is not suitable for comparing one system with another, only changes of
query etc within Jena.
Andy
