Path: csiph.com!fu-berlin.de!news.servidellagleba.it!bofh.it!news.nic.it!robomod From: tony mancill Newsgroups: linux.debian.maint.java Subject: Re: reply: Bazel Removal from Debian Date: Wed, 22 Feb 2023 06:00:01 +0100 Message-ID: References: X-Mailbox-Line: From debian-java-request@lists.debian.org Wed Feb 22 04:55:50 2023 Old-Return-Path: X-Amavis-Spam-Status: No, score=-11.599 tagged_above=-10000 required=5.3 tests=[BAYES_00=-2, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, LDO_WHITELIST=-5, PGPSIGNATURE=-5, RCVD_IN_DNSWL_NONE=-0.0001] autolearn=unavailable autolearn_force=no X-Policyd-Weight: using cached result; rate: -5.5 X-Gm-Message-State: AO0yUKUlFYppnBqcA+0tbfAZVbZR0g7elhULQ/LbWLm7clE5K1kNdO1o 3YjeC9DyLS/aLpmgPtyAhh8= X-Google-SMTP-Source: AK7set8oII+CWo8+itmmJVSTl5yKVfw66Rn4Ik82IMY9GMht52Xv5huZHXl0s7VueuFSyNELO4BxcQ== X-Received: by 2002:a17:902:ec82:b0:198:ff11:2600 with SMTP id x2-20020a170902ec8200b00198ff112600mr8969882plg.2.1677041729243; Tue, 21 Feb 2023 20:55:29 -0800 (PST) Sender: robomod@news.nic.it MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="c8c+1GPIg5wWRqLk" Content-Disposition: inline X-Mailing-List: archive/latest/23237 List-ID: List-URL: List-Archive: https://lists.debian.org/msgid-search/Y/WgPk3xibdeugM9@lark Approved: robomod@news.nic.it Lines: 59 Organization: linux.* mail to news gateway X-Original-Cc: Hans-Christoph Steiner , Olek Wojnar , Debian Bazel Discussion List , Debian Java Discussion List , Debian Bazel Packaging Team X-Original-Date: Tue, 21 Feb 2023 20:55:26 -0800 X-Original-Message-ID: X-Original-References: <2FA11FED-1D3B-49A9-BA6E-F77AB13E0C62@debian.org> X-Original-Sender: tony mancill Xref: csiph.com linux.debian.maint.java:12582 --c8c+1GPIg5wWRqLk Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Feb 21, 2023 at 03:15:18PM +0000, sun min wrote: > > If the test passes regularly, and just sometimes fails under the same > > conditions, I would consider disabling it in autopkgtest rather than ha= ve it not > > make it into bookworm. The perfect is the enemy of the good. >=20 > The autopkgtest always fails . >=20 > The maintainer added a =E2=80=9C-XX:+UseParallelGC=E2=80=9D for garbge co= llectors param(target jdk16+) which can boost build performance for about 3= 0% compared with the default GC param =E2=80=9C-XX:+UseG1GC=E2=80=9D[1]. >=20 > In fact all the CI stages can be passed if supplied with the default GC p= aram. >=20 > I suspect If the =E2=80=9C+UseParallelGC=E2=80=9D should be used with som= e other jvm params together.But I have no idea. Hi sun min, It sounds like premature optimization to configure or tune the GC algorithm at all. The JVM (any version) will be able to configure itself, even if perhaps not optimally, without setting either "+UseParallelGC" or "+UseG1GC". Is that all we need to change? We should be able to build and ship the package with conservative (compatible) defaults and document tuning for better performance in a wiki or similar. Cheers, tony --c8c+1GPIg5wWRqLk Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE5Qr9Va3SequXFjqLIdIFiZdLPpYFAmP1oD4ACgkQIdIFiZdL PpaBxA/+MLLJDLvDDsbZ4O7nnqnISmKoc3yoWkeObe1zJFBFk0LE7wgcannzMIos t+RXHgEN9Qn/Bo1tElTh3R6Yd6qzkY/Oc34KFDAaXL3zMlA5wXxNYTjw1aHw6pXY htsahWZ5PPc0UWTt9iW2MZkKZ+tH2x7gVKhjXZL2o6ZS4bk3vnuFzV2Txi5nWZLk /NFkkrcAL8bIlp5WEgATh8UieAba8Z5/mIFR1Qz+fY/NKyf81CKkpChsy+Z0LOIJ vc/6ghulLS2oy+0dRTROpBw+XPmgfssCRPzWLPfOivzBJvWP7z4rZ4QKgvYxrstm ESnmeufc8Xe5gC8Fvs9EE6vBsQTpFsUpzYXX/7l1l+omxaH4hEWjEbJh15P7ac/T DW/hfgpJbfHB14ytaqgJwLaI72gzGOzVtC88zJlRiH0bCMIg0SlAOk2z0ZEe2775 L7JU9CaT3u9QBYhh4VRh6LTAms7vZc1ubLOgaLdP7kjaBIGxXxuuVzGB0vTYXyU3 KM2uwfWTdyD8GGYmUx1YnCbaoL8vPZl7xOz115slI0/TDFWWC/IyskCgQPJOWgtW cEJ5RWTTnkAxy2ZzS07rgnGMZltm0neZkdzusod034D9sUeHFmZI8ZdRvlh4SjkO Tsx32616jvWEg8e/UPpuM2eeNJo1oSlWMbEJyb9XlWVlJjw7WbE= =XZJm -----END PGP SIGNATURE----- --c8c+1GPIg5wWRqLk--