From owner-svn-src-head@freebsd.org Tue Feb 27 01:36:44 2018 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3DC5FF35BDF; Tue, 27 Feb 2018 01:36:44 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id E772477EB8; Tue, 27 Feb 2018 01:36:43 +0000 (UTC) (envelope-from mav@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 mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id E2822237E3; Tue, 27 Feb 2018 01:36:43 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w1R1ahNC020065; Tue, 27 Feb 2018 01:36:43 GMT (envelope-from mav@FreeBSD.org) Received: (from mav@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w1R1ah4l020064; Tue, 27 Feb 2018 01:36:43 GMT (envelope-from mav@FreeBSD.org) Message-Id: <201802270136.w1R1ah4l020064@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mav set sender to mav@FreeBSD.org using -f From: Alexander Motin Date: Tue, 27 Feb 2018 01:36:43 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r330048 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Group: head X-SVN-Commit-Author: mav X-SVN-Commit-Paths: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Commit-Revision: 330048 X-SVN-Commit-Repository: base 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: 2.1.25 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: Tue, 27 Feb 2018 01:36:44 -0000 Author: mav Date: Tue Feb 27 01:36:43 2018 New Revision: 330048 URL: https://svnweb.freebsd.org/changeset/base/330048 Log: Add sysctls/tunables for dbuf cache size. MFC after: 2 weeks Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c Tue Feb 27 01:28:19 2018 (r330047) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c Tue Feb 27 01:36:43 2018 (r330048) @@ -134,6 +134,16 @@ int dbuf_cache_max_shift = 5; uint_t dbuf_cache_hiwater_pct = 10; uint_t dbuf_cache_lowater_pct = 10; +SYSCTL_DECL(_vfs_zfs); +SYSCTL_QUAD(_vfs_zfs, OID_AUTO, dbuf_cache_max_bytes, CTLFLAG_RWTUN, + &dbuf_cache_max_bytes, 0, "dbuf cache size in bytes"); +SYSCTL_INT(_vfs_zfs, OID_AUTO, dbuf_cache_max_shift, CTLFLAG_RDTUN, + &dbuf_cache_max_shift, 0, "dbuf size as log2 fraction of ARC"); +SYSCTL_UINT(_vfs_zfs, OID_AUTO, dbuf_cache_hiwater_pct, CTLFLAG_RWTUN, + &dbuf_cache_hiwater_pct, 0, "max percents above the dbuf cache size"); +SYSCTL_UINT(_vfs_zfs, OID_AUTO, dbuf_cache_lowater_pct, CTLFLAG_RWTUN, + &dbuf_cache_lowater_pct, 0, "max percents below the dbuf cache size"); + /* ARGSUSED */ static int dbuf_cons(void *vdb, void *unused, int kmflag)