On Thu, 8 Sep 2022 07:57:36 GMT, Aleksey Shipilev <sh...@openjdk.org> wrote:
> I have been looking into `make clean-images images` performance, and realized > jmod keeps compressing files with default compression level. Tuning that > toward lighter compression levels improves build performance considerably, > without a heavy loss in *.jmod sizes. > > This PR allows JMOD to select the compression level. Follow-ups would use > this in the build system, see #10214. > > The interesting asymmetry against `jlink` is: `jlink` provides `--compress` > option that only takes `2` for "ZIP compression". (Separately, we could argue > if it would be beneficial to extend `--compress` to `jlink` as well, so to > select the compression level there too.) This pull request has now been integrated. Changeset: 43f7f47a Author: Aleksey Shipilev <sh...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/43f7f47ae0f36a8147f6197804db3b74a9dda295 Stats: 154 lines in 4 files changed: 147 ins; 0 del; 7 mod 8293499: Provide jmod --compress option Reviewed-by: alanb, mchung, jpai, redestad ------------- PR: https://git.openjdk.org/jdk/pull/10213
