ByteBuffer performance issue in Java 9? (original) (raw)
Andrew Haley aph at redhat.com
Mon Mar 13 09:50:16 UTC 2017
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On 13/03/17 08:37, Andrew Haley wrote:
On 12/03/17 21:15, Michael McCandless wrote:
I compared Java 1.8.0121 (base, below) and Java 9 ea 160 (comp), indexing and searching all Wikipedia English content, using MMapDirectory, and net/net there is some smallish slowdown, but it's not catastrophic. Right, but ByteBuffers were significantly rewritten for a significant performance increase.
Just for clarification: heap-based ByteBuffers are most significantly affected. Mapped ByteBuffers see a much smaller, if any, effect, as I said in my earlier post.
Andrew.
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