RFR [9] 8006627: UUID to/from String performance should be improved by reducing object allocations (original) (raw)

Claes Redestad claes.redestad at oracle.com
Mon Jul 21 11:41:47 UTC 2014


On 07/19/2014 02:59 PM, Ivan Gerasimov wrote:

This looks just beautiful!

Thanks!

But why do you need the digits() function at all? In my opinion, using formatUnsignedLong directly would be no less clearer.

Sure!

http://cr.openjdk.java.net/~redestad/8006627/webrev.2/

Small improvement with client compiler; no measurable change with tiered.

/Claes

Sincerely yours, Ivan On 19.07.2014 8:59, Claes Redestad wrote: Hi,

after recent changes, this patch has been revisited and improved slightly, primarily simplifying and speeding up the toString method slightly more: http://cr.openjdk.java.net/~redestad/8006627/webrev.1/ /Claes On 2014-06-15 00:41, Claes Redestad wrote: Hi,

please review this patch to improve UUID performance, originally proposed by Steven Schlansker, rebased to use the allocation-free methods added in https://bugs.openjdk.java.net/browse/JDK-8041972 Webrev: http://cr.openjdk.java.net/~redestad/8006627/webrev.0/ Bug: https://bugs.openjdk.java.net/browse/JDK-8006627 Thanks! /Claes



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