From nobody Mon Feb 19 23:28:52 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 4TdzJ43v1Tz59k4h for ; Mon, 19 Feb 2024 23:28:52 +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 4TdzJ42tmVz4fdm for ; Mon, 19 Feb 2024 23:28:52 +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=1708385332; 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=voIUvfTs/dnTe58lnhc71VwOLtbPvJ7wxY1ZoHw8cvs=; b=Mv1niF8nrDwT6PtHxKXwGSUJNktdUv6/t522Y/ErAYyoL+DLbH+kgWexgnijuYs0muzfKZ NCKeZHVIl4YTWbBDDWDEtdGasC/zXG12XxIpXnXnZKqlbm9aztaRsQ96M9atA2XZvhc8y4 8IXUOlaseVjO9TeD7qBd/ik6+n8fzoFduFBYjRaWI7k41sTCxIkmFKSl1m5ROrUFXDlK62 ztWwk9kFoLq592f7oizUmy0Hsf2vVslbAsqsznd+T40wmggjOwsqmP3h+VHYy7sJ9u+vKc hq71UeeR2fItywNiVLttPYWbBN9rCkIg7wLacjrRDQ7MRl8nuuY7YNESzcZjRg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1708385332; a=rsa-sha256; cv=none; b=C3VMBTO6GgpplyA3xBGIHtL3Cm5InM4S01U6rdKdmRXCw+dWqBZ5lAG0n3SMK5hNwg0zNw ggoSdqigZjQZ2HFGwNq1ns2OPcCmL4d43xKya7cj09eXzVAZhoUV46mLZagkXlqP4vux3J Wh9ZkOniJEPNSD0Mcep0exW9KgmRD6hAj6t8atX4b3wd1ErGRAEkKJPMkJMzXG51THclkz /PeSlliLNCYH+md6KchC3Mc3d5HCB5AkPHpgvLG+4ausrzLaxSpEp7oRiNjN91XURNkTtK xWFiMsNFl436Uwnk9pw0jJJD7VjX/vp9iYtwjwVz7EM2/q/kyYekyzEVOTG5JQ== 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 4TdzJ41sb3zvW1 for ; Mon, 19 Feb 2024 23:28:52 +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 41JNSqaV002865 for ; Mon, 19 Feb 2024 23:28:52 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 41JNSq0G002858 for fs@FreeBSD.org; Mon, 19 Feb 2024 23:28:52 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: Mon, 19 Feb 2024 23:28:52 +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: seigo.tanimura@gmail.com 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 #60 from Seigo Tanimura --- (In reply to Peter Much from comment #59) Could you please run "sysctl vfs.zfs.znode" a few times at the interval of about 10 seconds while your issue is reproducing? I want to check what triggers the ARC pruning and how often that happens in your case. --=20 You are receiving this mail because: You are the assignee for the bug.=