From nobody Tue Jun 27 01:26:59 2023 X-Original-To: threads@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4QqnBC6qNbz4k2Lr for ; Tue, 27 Jun 2023 01:26:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4QqnBC0p3fz3KNc for ; Tue, 27 Jun 2023 01:26:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1687829219; 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: in-reply-to:in-reply-to:references:references; bh=w/roIsGFqgJOLVOOiOXYZ+q/QjBh8xM9dnm1mxnqDxQ=; b=wPvoyI1fvpEZ9iKlbkXzNErrq7FdOwsYm9O4RN2ax6dcZyCt4vJjFF7qJaZKVjfIZoDjJw 6w0ANwETbzEO91S6l6bLCycLsqza4AY1VEbm172iL10TKaAOrDpBUgWeEgkIfdXKWJ67yX 9FeCbn8i5bOOVeFuKULYmp68BdaHzwcX0Kas+TGBpzytNOC/qsCAGGAUkyfoiHryImObuq zLzX0jYVgt2nrSm2tYKGmw9rlaGUZ4FgCv6HBH9f5jwlm8i92FHfX7cOt/9bu5qpPSZMjO NSZJ1SVxF4Bzt5HkOM6NIJ++XPUsna8CN1TncaQZtOanZGPiZuem3WGbhBR4xA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1687829219; a=rsa-sha256; cv=none; b=H4gp+tSnLBKKVQ5rou7PLTbwfdOQDvh4UBQhqAyfJMI5L2h23OoPFjJxHMURoEwTyoURrI ydwRM4bxr3S3Y/Ll1xObfzuuYs7kmYS176NIZ1Va8NUqpPE/oF9cb7lXMTmssEPUKXrT56 8BECCyaQY3D6TKkOmkAqZRF08VMQMzLNYIZgDrhkbVKCnyscY5LoID8fbzHgxF1TGlwdKM JYkJcuRFpXFNJGQVXjdllMfIvfbKb2GYtBIVeEcyuMRTiLB+6giTu3eJwzGa1/layp6BWE 1NsBO97abeiQyeVzMFSgaqy0ryBIXev4CDIMl5Ao3YOFqRgSp6ejMIny0ZLwkA== Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4QqnBB6wjMzXKF for ; Tue, 27 Jun 2023 01:26:58 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 35R1Qw2j059883 for ; Tue, 27 Jun 2023 01:26:58 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 35R1Qwsi059882 for threads@FreeBSD.org; Tue, 27 Jun 2023 01:26:58 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: threads@FreeBSD.org Subject: [Bug 272238] False sharing with pthread rw and spin locks leads to severe perf degradation Date: Tue, 27 Jun 2023 01:26:59 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: threads X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: performance X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: greg@codeconcepts.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: threads@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: attachments.isobsolete cc attachments.created Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Threading List-Archive: https://lists.freebsd.org/archives/freebsd-threads List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-threads@freebsd.org X-BeenThere: freebsd-threads@freebsd.org MIME-Version: 1.0 X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D272238 Greg Becker changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #243025|0 |1 is obsolete| | CC| |greg@codeconcepts.com --- Comment #3 from Greg Becker --- Created attachment 243029 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D243029&action= =3Dedit Patch to reduce false sharing with pthreads rw and spin locks --=20 You are receiving this mail because: You are the assignee for the bug.=