git: openjdk/jdk25u: master: 8357959: (bf) ByteBuffer.allocateDirect initialization can result in large TTSP spikes

[Aleksey Shipilev]

Changeset: 111fcc31
Branch: master
Author:    Oli Gillespie <ogillespie at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2025-08-26 13:05:08 +0000
URL:       https://git.openjdk.org/jdk25u/commit/111fcc31158ca17337f4b6254541b95481263cfd

8357959: (bf) ByteBuffer.allocateDirect initialization can result in large TTSP spikes

Backport-of: e5ce5c57c83972ff52758a804c942986cab74ca7

! src/java.base/share/classes/java/nio/Bits.java
! src/java.base/share/classes/java/nio/Direct-X-Buffer.java.template
! test/jdk/java/nio/Buffer/AllocateDirectInit.java
+ test/micro/org/openjdk/bench/java/nio/DirectByteBufferAlloc.java