RFR (S) CR 6857566: (bf) DirectByteBuffer garbage creation can outpace reclamation

Aleksey Shipilev aleksey.shipilev at oracle.com
Tue Oct 8 14:31:05 UTC 2013


On 10/08/2013 12:36 AM, Peter Levart wrote:
>> That said, this is a 13 year old issue that hasn't come up very often
>> (to my knowledge anyway, perhaps because those making heavy use of
>> direct buffers are pooling buffers rather than allocating and
>> unreferencing). In additional we are close to the end of JDK 8 (ZBB is
>> in 2.5 weeks time) and technically we have been in ramp down (meaning
>> P1-P3 only) since mid-July.
> 
> Ok then, I'll finish this nevertheless and then it can sit and wait for
> JDK9.

Sounds like a good plan, with the backport to JDK 8 update. Thanks for
taking this over, Peter. I reassigned the JDK-6857566 to you. Once you
ready with the final patch, put the link here, I have two guys
(Hazelcast and Netty) who are up to assist us with reviews and testing.
This issue seems to grind their gears. ;)

-Aleksey.



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