I prototyped the proposed change to the clear() method. It seems to work well and makes a lot of sense to me, so I filed a bug for it:
https://bugs.openjdk.java.net/browse/JDK-8159589 I haven’t discussed this with the other team members yet, so let’s see what they think. Hannes > Am 15.06.2016 um 11:24 schrieb Axel Dörfler <ax...@pinc-software.de>: > > Am 14.06.2016 um 22:09 schrieb Tony Zakula: >> Interesting. We use on global context and create a new engine context >> with each run. The initial compile of several scripts is over 100ms, >> but then we see that drop to under 10ms. The context creation seems to >> have very little overhead. We have not timed that specifically though, >> just total process time. > > In my special use case which was a very short JavaScript that was used as > Comparator, actual execution time was very short, so the impact of the > optimizations were pretty obvious. > Sorting about 15000 entries took way over 10 minutes before any optimization. > IIRC after using a single global engine this dropped to about 2 minutes. > After also reusing the JS context, it went down to 10 seconds. > > Bye, > Axel. >
