> Hi, Please review > Usually most OSes are configured with page size of 4K, but some others are > configured with 64K. If jdk binary is built on 4K platform and run on > different configured platforms, CDS fails to be loaded due to region > alignment mismatch: > Unable to map CDS archive -- os::vm_allocation_granularity() expected: 4096 > actual: 65536 > This change uses 64K as region alignment if OS page size is less than 64K. > For most of the current OSes, means always use 64K as file map region > alignment. > The archive size will increase about 300K due to the change. > Tests: tier1-4 > Run MacOS/X64 binary on MacOS/aarch64 > > Thanks > Yumin
Yumin Qi has updated the pull request incrementally with one additional commit since the last revision: Switch to enble compatible-cds-alignment at configuration ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/2651/files - new: https://git.openjdk.java.net/jdk/pull/2651/files/ec44150f..e8c5cb0d Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2651&range=03 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2651&range=02-03 Stats: 59 lines in 7 files changed: 17 ins; 16 del; 26 mod Patch: https://git.openjdk.java.net/jdk/pull/2651.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/2651/head:pull/2651 PR: https://git.openjdk.java.net/jdk/pull/2651
