From nobody Tue Apr 02 16:40:42 2024 X-Original-To: fs@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 4V8DCJ1GBZz5GyDR for ; Tue, 2 Apr 2024 16:40:44 +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 4V8DCH6WPSz4bMN for ; Tue, 2 Apr 2024 16:40:43 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1712076043; a=rsa-sha256; cv=none; b=XJgYH/f/fhMefGac2vlWJ7WEy+NwQmKNHvmZTxOS1gaRHcFDys1aImZLKdAlJ7YQf09j0z 9QNz2rrbi/NsK1lNrATid7ZhBBJDRaSz2FXvCrnjmwsSwEokYg7T75kiVGyJI/hECa+qLs Tu1jBb9XlJ2wsvCEYnA7sCahq3InnU+R95Xv5SARh+rliD6Xmi1S0uas6ozqGDqBs/6GHk ktkVZD36i55G+zuOErSYknkcbOkPqZCprGVf6u5aMsCnBZua/vgkGWnOqLrQkU4KBUCR6O DVLik86zgWl3M0ElsdfEbvg14hH7KgeFtBzpSC+lNXkCOBTZXbPL/z5zjYxIAQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1712076043; 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=30ClIrRf4KppViLPxtLHNaLVFlDxe7wOEOzFvoOPap4=; b=heWuHeQW5AmxshHGT8E1so3ghQ9UUKkge+MFdOaboRRK9sQ2E62/K/ZIQTYrTUfPGxExL+ pZ1zMvFhkrVQ4nkeFoNgNdevIAWtxkzP/WpEuTasHg2eT3yRz2pBfsuH/tMLmbMpARX9P2 PE1E/q76/duXDBvzP1rifFVWoxbw2lIkp2zjOA7V/G1pdpgsbdLN1y0wmjb8eU7r/D04kZ DCTY6ZEWkZyJ7a95q1KDH/qKWVLFgXn0QztkB+EPJlbE05GR2iXRmhb1ltEJQhB6ZxmJfq D/jq5dQ+sUIgPopR4hJm7Ub3Bh++iA/LkdbgFasx+WvsjudZJO2lMElmnK8coA== 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 4V8DCH66v5zxP0 for ; Tue, 2 Apr 2024 16:40:43 +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 432GehsF025016 for ; Tue, 2 Apr 2024 16:40:43 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 432GeheH025011 for fs@FreeBSD.org; Tue, 2 Apr 2024 16:40:43 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: fs@FreeBSD.org Subject: [Bug 275594] High CPU usage by arc_prune; analysis and fix Date: Tue, 02 Apr 2024 16:40:42 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: karl@denninger.net X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: fs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: 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: Filesystems List-Archive: https://lists.freebsd.org/archives/freebsd-fs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-fs@freebsd.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D275594 --- Comment #103 from karl@denninger.net --- Interesting.... I'm on FreeBSD 13.3-STABLE stable/13-n257639-51b2556ee60a KSD-SMP, just reb= uild world/kernel/nanoBSD for some of my pcEngines machines. The builds are complete but I have a load average over 12 (!!) and the only thing that is sucking up all manner of CPU is: 17 - DL 7:51.59 [vnlru] which definitely is (the machine was just rebooted, so that's rather significant all things considered.) Is this related? Not sure, but it looks like it might be....I don't genera= lly run poudriere builds on this box, but do build world and kernel on it pretty-regularly, plus cross-builds using Crochet for Pis. --=20 You are receiving this mail because: You are the assignee for the bug.=