JMH results for IndexedLinkedList

[Tagir Valeev]

Hello!

On Sun, Jul 10, 2022 at 6:33 AM Rodion Efremov <coderodd3 at gmail.com> wrote:
> I am interested in
> https://bugs.openjdk.org/browse/JDK-8143850
>
> Is there a way for becoming an assignee for the above issue? If yes, how do I proceed and what is the schedule?

Stuart Marks might be the right person to ask. Adding to CC.

With best regards,
Tagir Valeev.

>
> Best regards,
> rodde
>
> la 9.7.2022 klo 22.33 Tagir Valeev <amaembo at gmail.com> kirjoitti:
>>
>> Note that nobody these days cares about LinkedList. Use-cases where LinkedList outperforms careful use of ArrayList or ArrayDeque are next to none. So saying that your data structure is better than LinkedList is totally not a reason to add it to JDK. It should be better than ArrayList and ArrayDeque.
>>
>> Having a single data structure that provides list and deque interface is a reasonable idea. However it would be much simpler to retrofit existing data structure like ArrayDeque, rather than create a new data structure. Here's an issue for this:
>> https://bugs.openjdk.org/browse/JDK-8143850
>>
>> There were also discussions to enhance collections in general, adding more useful methods like getFirst() or removeLast() to ArrayList, etc. See for details:
>> https://bugs.openjdk.org/browse/JDK-8266572
>>
>> To conclude, the idea of adding one more collection implementation looks questionable to me. It will add more confusion when people need to select which collection fits their needs better. It will require more learning. This could be justified if there are clear benefits in using it in real world problems, compared to existing collections. But so far I don't see the examples of such problems.
>>
>> With best regards,
>> Tagir Valeev
>>
>> сб, 9 июл. 2022 г., 11:22 Rodion Efremov <coderodd3 at gmail.com>:
>>>
>>> Hello,
>>>
>>> My benchmarking suggests, that, if nothing else, my IndexedLinkedList outperforms gracefully the java.util.LinkedList, so the use case should be the same (List<E> + Deque<E> -interfaces) for both of the aforementioned data structures.
>>>
>>> Best regards,
>>> rodde
>>>
>>>
>>> On Sat, Jul 9, 2022 at 11:19 AM Tagir Valeev <amaembo at gmail.com> wrote:
>>>>
>>>> Hello!
>>>>
>>>> Are there real world problems/use cases where IndexedLinkedList would be preferred in terms of CPU/memory usage over ArrayList?
>>>>
>>>> сб, 9 июл. 2022 г., 07:18 Rodion Efremov <coderodd3 at gmail.com>:
>>>>>
>>>>> Data structure repo:
>>>>> https://github.com/coderodde/IndexedLinkedList
>>>>>
>>>>> Benchmark repo:
>>>>> https://github.com/coderodde/IndexedLinkedListBenchmark
>>>>>
>>>>> I have profiled my data structure and it seems it’s more performant than java.util.LinkedList or TreeList, if nothing else.
>>>>>
>>>>> So, is there any chance of including IndexedLinkedList to JDK?
>>>>>
>>>>> Best regards,
>>>>> rodde