On Sun, 9 Apr 2023 02:37:45 GMT, Tingjun Yuan <d...@openjdk.org> wrote:
>> This appears to be a 4% improvement for non-concurrent structures like >> ArrayList or LinkedHashSet, if we ignore the baseline difference (for >> Iterable). This is anticipated as the growth of array size is exponential, >> so the total allocation is effectively O(N log(N)). Can you try with smaller >> quantities, like single-digit or double digits length, which may be more >> frequent in application? > > @liach Working on that. > @yuantj Alternatively, you can probably try working on the `toArray` result > of a collection than to allocate a new String array. This might be more > efficient for some implementations like ArrayList as well, in addition to > benefiting concurrent collections. The method accepts collections of nullable CharSequences, which may not be Strings. So `c.toArray(new String[0])` doesn't work. ------------- PR Comment: https://git.openjdk.org/jdk/pull/13383#issuecomment-1501335944
