Review Request for CR : 7050528 Improve performance of java.text.DecimalFormat.format() call stack (original) (raw)
Joe Darcy joe.darcy at oracle.com
Sun Sep 16 15:34:37 UTC 2012
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Looks fine; approved.
Thanks,
-Joe
On 9/12/2012 10:19 AM, Olivier Lagneau wrote:
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.
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