From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id 5D2013857013; Wed, 26 Aug 2020 09:16:45 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 5D2013857013
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1598433405;
 bh=egdZNakKyjEvXYDbb5yjVmsQ0laSaFdyMaDIaplo4SY=;
 h=From:To:Subject:Date:From;
 b=dLnwMuJzVt+Db5f9Y0g+AbwCRA5qcnbLQ4G1CXw4m0IMIn5uxeiCu32j+oApb5rza
 8VvsZA4kQrx8JPkL3YRQT5/QEFn662i/aRYXz3ndHKe0w1FjqMuNU8gkAVkZhcHQHJ
 sVd4K20FXADUUGWbb95CecMVC3mJSn3+/dHNrA/g=
From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/96794] New: --with-build-config=bootstrap-lto-lean
 with --enable-link-mutex leads to poor LTRANS utilization
Date: Wed, 26 Aug 2020 09:16:45 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: bootstrap
X-Bugzilla-Version: 10.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: marxin at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
Message-ID: <bug-96794-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Wed, 26 Aug 2020 09:16:45 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96794

            Bug ID: 96794
           Summary: --with-build-config=3Dbootstrap-lto-lean with
                    --enable-link-mutex leads to poor LTRANS utilization
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
  Target Milestone: ---

As seen
here:https://gist.githubusercontent.com/marxin/223890df4d8d8e490b6b2918b77d=
acad/raw/7e0363da60dcddbfde4ab68fa3be755515166297/gcc-10-with-zstd.svg

each blocking linking of a GCC front-end leads to a wasted jobserver worker=
.=