From owner-svn-src-head@freebsd.org Fri Mar 17 12:34:58 2017 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9392AD10172; Fri, 17 Mar 2017 12:34:58 +0000 (UTC) (envelope-from smh@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 607771D28; Fri, 17 Mar 2017 12:34:58 +0000 (UTC) (envelope-from smh@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v2HCYvf7026430; Fri, 17 Mar 2017 12:34:57 GMT (envelope-from smh@FreeBSD.org) Received: (from smh@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v2HCYvgd026429; Fri, 17 Mar 2017 12:34:57 GMT (envelope-from smh@FreeBSD.org) Message-Id: <201703171234.v2HCYvgd026429@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: smh set sender to smh@FreeBSD.org using -f From: Steven Hartland Date: Fri, 17 Mar 2017 12:34:57 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r315449 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Mar 2017 12:34:58 -0000 Author: smh Date: Fri Mar 17 12:34:57 2017 New Revision: 315449 URL: https://svnweb.freebsd.org/changeset/base/315449 Log: Reduce ARC fragmentation threshold As ZFS can request up to SPA_MAXBLOCKSIZE memory block e.g. during zfs recv, update the threshold at which we start agressive reclamation to use SPA_MAXBLOCKSIZE (16M) instead of the lower zfs_max_recordsize which defaults to 1M. PR: 194513 Reviewed by: avg, mav MFC after: 1 month Sponsored by: Multiplay Differential Revision: https://reviews.freebsd.org/D10012 Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Fri Mar 17 12:34:56 2017 (r315448) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Fri Mar 17 12:34:57 2017 (r315449) @@ -3978,7 +3978,7 @@ arc_available_memory(void) * Start aggressive reclamation if too little sequential KVA left. */ if (lowest > 0) { - n = (vmem_size(heap_arena, VMEM_MAXFREE) < zfs_max_recordsize) ? + n = (vmem_size(heap_arena, VMEM_MAXFREE) < SPA_MAXBLOCKSIZE) ? -((int64_t)vmem_size(heap_arena, VMEM_ALLOC) >> 4) : INT64_MAX; if (n < lowest) {