Please review The implementation of a fast-path algorithm for optimizing
the DecimalFormat.format(double, ...) call stack.
The webrev is here :
http://cr.openjdk.java.net/~olagneau/7050528/webrev.02/
As described in the CR evaluation and suggested fix, the speed-up on a
dedicated micro-benchmark
is more than x10 on either SPARC or x86 architectures. The footprint
cost is ~6kbytes from a static
char array constant data to collect digits from integer values.
There is an associated regression test, together with a micro-benchmark
that may be run optionally.
--
Olivier Lagneau, olivier.lagn...@oracle.com
Oracle, 180 Av. de l'Europe,
ZIRST de Montbonnot, 38334 Saint Ismier, FRANCE
Phone : +33 4 76 18 80 09 Fax : +33 4 76 18 80 23
