From owner-svn-src-stable@freebsd.org Tue Mar 7 15:27:41 2017 Return-Path: Delivered-To: svn-src-stable@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 A92B0D013AF; Tue, 7 Mar 2017 15:27:41 +0000 (UTC) (envelope-from avg@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 70B1D1BAA; Tue, 7 Mar 2017 15:27:41 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v27FRef8016094; Tue, 7 Mar 2017 15:27:40 GMT (envelope-from avg@FreeBSD.org) Received: (from avg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v27FRe8l016093; Tue, 7 Mar 2017 15:27:40 GMT (envelope-from avg@FreeBSD.org) Message-Id: <201703071527.v27FRe8l016093@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avg set sender to avg@FreeBSD.org using -f From: Andriy Gapon Date: Tue, 7 Mar 2017 15:27:40 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r314858 - stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Group: stable-11 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 Mar 2017 15:27:41 -0000 Author: avg Date: Tue Mar 7 15:27:40 2017 New Revision: 314858 URL: https://svnweb.freebsd.org/changeset/base/314858 Log: MFC r314058: zfs: lower priority of zio_write_issue threads by four Obtained from: Panzura Sponsored by: Panzura Modified: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c ============================================================================== --- stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c Tue Mar 7 15:27:23 2017 (r314857) +++ stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c Tue Mar 7 15:27:40 2017 (r314858) @@ -923,9 +923,17 @@ spa_taskqs_init(spa_t *spa, zio_type_t t * The write issue taskq can be extremely CPU * intensive. Run it at slightly lower priority * than the other taskqs. + * FreeBSD notes: + * - numerically higher priorities are lower priorities; + * - if priorities divided by four (RQ_PPQ) are equal + * then a difference between them is insignificant. */ if (t == ZIO_TYPE_WRITE && q == ZIO_TASKQ_ISSUE) - pri++; +#ifdef illumos + pri--; +#else + pri += 4; +#endif tq = taskq_create_proc(name, value, pri, 50, INT_MAX, spa->spa_proc, flags);