Path: csiph.com!aioe.org!bofh.it!news.nic.it!robomod From: Aleksey Shipilev Newsgroups: linux.debian.maint.java Subject: Call for testing: Zero VM builds for JDK 16 Date: Wed, 09 Dec 2020 09:30:01 +0100 Message-ID: X-Original-To: debian-java@lists.debian.org X-Mailbox-Line: From debian-java-request@lists.debian.org Wed Dec 9 08:26:18 2020 Old-Return-Path: X-Amavis-Spam-Status: No, score=-7.199 tagged_above=-10000 required=5.3 tests=[BAYES_00=-2, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, LDO_WHITELIST=-5, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001] autolearn=ham autolearn_force=no X-Policyd-Weight: using cached result; rate: -5.5 Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1607502361; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=I4bboQ5TC0I2RVj9kv/voISaEeTbZ+2yZ8YaW+KelAQ=; b=ccXsojcwvpZhNojSCkUuzZ8dr0pBmtu2WQaORUynF0t6hLuKmyULUlRdDOYdFUVx6VnQ1+ onNePcESncrC2KMYzonQcgb34GNBvtvlcD2fZe86lpjfe95B1Ttz1sxNFRaoxKcyKDJDrM uASqtOVH1Ak/9/2w4RInwTjHU+1NIhs= X-Mc-Unique: rhHIYKW_P3SEPSP4EijAhw-1 X-Google-Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:to:from:subject:message-id:date:user-agent :mime-version:content-language:content-transfer-encoding; bh=I4bboQ5TC0I2RVj9kv/voISaEeTbZ+2yZ8YaW+KelAQ=; b=T1UYkL6jYb2jTkAM4SuQBoegwGEy1qRPn4xzzOF4PiN5F0HUaMOplXCroVmntcZNbA +g0E5MzIiMhbUnN28MCE2zTlFq7s1iNquzic6XXnJTle/NkkGzFGZpZJ95raktQ0NFuS gGCYjGvVEq6ks72qvCxNHrnCJuZ/Tay7Y8GT6KytPlKN7FdjkG++B7175zxsTtHuIKeN Z49tkUCG+Mdxxn2sQ7z2XmJK5kxuu9e5+id03Q50TjEcQocB35gFeRXpC8VkCxURnZYO ske49e7Z2u1xhxuBPzvPZ/+roXv4LFtt2UJKJuVRaQY55dj+sqkb7tB9TT+iIxupCCdV Xs4Q== X-Gm-Message-State: AOAM532/CRb4HaOoAphw4CELyWolnP3itn6xKVRQOrKe3+QrCQ2X6Goi 04pp54dQ6rr16tUdidLXwu6HdxvdyXrnia5XrDLDTvcNLHN+SNARJTnZ2/tCRBOURKV0UHNsXD4 fd792/H90rJBoWpy2rGCC14ko X-Received: by 2002:aa7:cc19:: with SMTP id q25mr845981edt.290.1607500365671; Tue, 08 Dec 2020 23:52:45 -0800 (PST) X-Google-SMTP-Source: ABdhPJxwUpvDxYq0vMkpoC43/5Oi5bvLG3VBxJ9aU2uvHmgLGjyhtuVvkjZA67Ejw/l+t18YRIb5eg== X-Received: by 2002:aa7:cc19:: with SMTP id q25mr845974edt.290.1607500365545; Tue, 08 Dec 2020 23:52:45 -0800 (PST) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=shade@redhat.com X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Mailing-List: archive/latest/22610 List-ID: List-URL: List-Archive: https://lists.debian.org/msgid-search/223af527-f3e6-2d8c-fdc3-537a7f3d1945@redhat.com Approved: robomod@news.nic.it Lines: 18 Organization: linux.* mail to news gateway Sender: robomod@news.nic.it X-Original-Date: Wed, 9 Dec 2020 08:52:43 +0100 X-Original-Message-ID: <223af527-f3e6-2d8c-fdc3-537a7f3d1945@redhat.com> Xref: csiph.com linux.debian.maint.java:11985 Hi, fellow debian-java maintainers, I have been doing some housekeeping work for Zero VM in JDK 16, mostly to work out easy performance bugs that make builds/tests unnecessarily slow. As the highlight, x86_64 Zero bootcycle is now about 1.5x..2x faster. There are also a couple of bugfixes that let Zero pass a few more tier1 tests. Knowing that Debian is the major user of Zero VM configs on some architectures, could you please run the current tip of jdk16 [1] and see if Debian testing is still fine? If it is not, we still have a plenty of time to work out the regressions. My tentative plan is to get these improvements backported to LTSes (11u and 8u), but not before we are sure JDK 16 is fine. -- Thanks, -Aleksey [1] https://github.com/openjdk/jdk, soon to be forked to jdk16