RFR (S) CR 7177472: JSR292: MethodType interning penalizes scalability (original) (raw)
Aleksey Shipilev aleksey.shipilev at oracle.com
Mon Jun 10 15:47:37 UTC 2013
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On 06/09/2013 12:17 AM, Peter Levart wrote:
In case the loop retries, there's no need to construct another WeakEntry...
T interned; WeakEntry e = new WeakEntry<>(elem, stale); do { expungeStaleElements(); WeakEntry exist = map.putIfAbsent(e, e); interned = (exist == null)? elem: exist.get(); } while (interned == null); return interned;
That's right, thanks!
The update is here: http://cr.openjdk.java.net/~shade/7177472/webrev.02/
Testing:
- Linux x86_64 builds OK
- Linux x86_64 java/lang/invoke/ jtreg passes OK
- The microbenchmark scores in the original note are still the same
-Aleksey.
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