From owner-svn-src-all@FreeBSD.ORG Fri Feb 1 10:26:31 2013 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id E33F5CA9; Fri, 1 Feb 2013 10:26:31 +0000 (UTC) (envelope-from andre@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) by mx1.freebsd.org (Postfix) with ESMTP id D5D0B9D1; Fri, 1 Feb 2013 10:26:31 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.5/8.14.5) with ESMTP id r11AQVxE068428; Fri, 1 Feb 2013 10:26:31 GMT (envelope-from andre@svn.freebsd.org) Received: (from andre@localhost) by svn.freebsd.org (8.14.5/8.14.5/Submit) id r11AQVL9068427; Fri, 1 Feb 2013 10:26:31 GMT (envelope-from andre@svn.freebsd.org) Message-Id: <201302011026.r11AQVL9068427@svn.freebsd.org> From: Andre Oppermann Date: Fri, 1 Feb 2013 10:26:31 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r246204 - head/sys/arm/include X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Feb 2013 10:26:32 -0000 Author: andre Date: Fri Feb 1 10:26:31 2013 New Revision: 246204 URL: http://svnweb.freebsd.org/changeset/base/246204 Log: Add VM_KMEM_SIZE_SCALE parameter set to 2 (50%) for all ARM platforms. VM_KMEM_SIZE_SCALE specifies which fraction of the available physical memory, after deduction of the kernel itself and other early statically allocated memory, can be used for the kmem_map. The kmem_map provides for all UMA/malloc allocations in KVM space. Previously ARM was using a fixed kmem_map size of (12*1024*1024) = 12MB without regard to effectively available memory. This is too small for recent ARM SoC with more than 128MB of RAM. For reference a description of others related kmem_map parameters: VM_KMEM_SIZE default start size of kmem_map if SCALE is not defined VM_KMEM_SIZE_MIN hard floor on the kmem_map size VM_KMEM_SIZE_MAX hard ceiling on the kmem_map size VM_KMEM_SIZE_SCALE fraction of the available real memory to be used for the kmem_map, limited by the MIN and MAX parameters. Tested by: ian MFC after: 1 week Modified: head/sys/arm/include/vmparam.h Modified: head/sys/arm/include/vmparam.h ============================================================================== --- head/sys/arm/include/vmparam.h Fri Feb 1 10:00:21 2013 (r246203) +++ head/sys/arm/include/vmparam.h Fri Feb 1 10:26:31 2013 (r246204) @@ -134,12 +134,15 @@ #endif #define VM_MAX_KERNEL_ADDRESS 0xffffffff + /* * Virtual size (bytes) for various kernel submaps. */ - #ifndef VM_KMEM_SIZE -#define VM_KMEM_SIZE (12*1024*1024) +#define VM_KMEM_SIZE (12*1024*1024) +#endif +#ifndef VM_KMEM_SIZE_SCALE +#define VM_KMEM_SIZE_SCALE (2) #endif #define MAXTSIZ (16*1024*1024)