Unsafe.{get,put}-X-Unaligned performance (original) (raw)

Andrew Haley aph at redhat.com
Thu Mar 12 21:05:50 UTC 2015

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On 03/12/2015 07:29 PM, Peter Levart wrote:

What about the following variant (or similar with ifs in case switch is sub-optimal):

public final long getLongUnaligned(Object o, long offset) { switch ((int) offset & 7) ...

I tried that already, and it wasn't really any faster, and it won't vectorize nicely (vectorization was high on John's list).

Andrew.

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