On Mon, 29 Aug 2022 09:33:44 GMT, Сергей Цыпанов <d...@openjdk.org> wrote:
>> Aleksey Shipilev has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> Touchups
>
> src/java.base/share/classes/jdk/internal/module/ModuleHashes.java line 170:
>
>> 168: static ModuleHashes generate(Set<ModuleReference> mrefs, String
>> algorithm) {
>> 169: Map<String, byte[]> nameToHash = new ConcurrentHashMap<>();
>> 170: mrefs.stream().parallel().forEach(mref -> {
>
> [AFAIK](https://stackoverflow.com/questions/28985704/parallel-stream-from-a-hashset-doesnt-run-in-parallel)
> streams taken from HashSet might have weak parallelism, so maybe it's worth
> wrapping `mrefs` into an ArrayList?
I instrumented the parallel tasks, and confirmed the full parallelism is used.
So this is not an issue.
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PR: https://git.openjdk.org/jdk/pull/10060
