Re: Fwd: [concurrency-interest] ConcurrentHashMap footprint and contention improvements

2011-04-18 Thread Chris Hegarty
On 04/18/11 11:18 AM, Doug Lea wrote: On 04/13/11 11:58, Chris Hegarty wrote: This change does appear worthwhile. We have a narrowing window of opportunity for JDK7. I spoke to Alan Bateman about this and we feel that if we could finalize the JDK7 changes by next Monday (that is, get them in f

Re: Fwd: [concurrency-interest] ConcurrentHashMap footprint and contention improvements

2011-04-18 Thread Doug Lea
On 04/13/11 11:58, Chris Hegarty wrote: This change does appear worthwhile. We have a narrowing window of opportunity for JDK7. I spoke to Alan Bateman about this and we feel that if we could finalize the JDK7 changes by next Monday (that is, get them in for JDK7 b140), this would give us a reaso

Re: Fwd: [concurrency-interest] ConcurrentHashMap footprint and contention improvements

2011-04-13 Thread Alan Bateman
Chris Hegarty wrote: Doug, This change does appear worthwhile. We have a narrowing window of opportunity for JDK7. I spoke to Alan Bateman about this and we feel that if we could finalize the JDK7 changes by next Monday (that is, get them in for JDK7 b140), this would give us a reasonable tim

Re: Fwd: [concurrency-interest] ConcurrentHashMap footprint and contention improvements

2011-04-13 Thread Chris Hegarty
Doug, This change does appear worthwhile. We have a narrowing window of opportunity for JDK7. I spoke to Alan Bateman about this and we feel that if we could finalize the JDK7 changes by next Monday (that is, get them in for JDK7 b140), this would give us a reasonable time for them to soak be

Fwd: [concurrency-interest] ConcurrentHashMap footprint and contention improvements

2011-04-12 Thread Doug Lea
Members of this list are also invited to check this out. I'm not sure if it will make Java7 schedule, but the improvements seem worthwhile given the increased use of ConcurrentHashMap inside the JDK (including multiple tables per class loader in JDK7.) -Doug Original Message