--- /dev/null 2009-10-09 09:49:44.009002217 +0100 +++ new/jdk/src/solaris/bin/ergo_zero.c 2009-10-09 12:12:47.000000000 +0100 @@ -0,0 +1,58 @@ +/* + * Copyright 1998-2007 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Sun designates this + * particular file as subject to the "Classpath" exception as provided + * by Sun in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ +#include "ergo.h" + + +/* Methods for solaris-sparc and linux-sparc: these are easy. */ + +/* Ask the OS how many processors there are. */ +static unsigned long +physical_processors(void) { + const unsigned long sys_processors = sysconf(_SC_NPROCESSORS_CONF); + + JLI_TraceLauncher("sysconf(_SC_NPROCESSORS_CONF): %lu\n", sys_processors); + return sys_processors; +} + +/* The sparc version of the "server-class" predicate. */ +jboolean +ServerClassMachineImpl(void) { + jboolean result = JNI_FALSE; + /* How big is a server class machine? */ + const unsigned long server_processors = 2UL; + const uint64_t server_memory = 2UL * GB; + const uint64_t actual_memory = physical_memory(); + + /* Is this a server class machine? */ + if (actual_memory >= server_memory) { + const unsigned long actual_processors = physical_processors(); + if (actual_processors >= server_processors) { + result = JNI_TRUE; + } + } + JLI_TraceLauncher("unix_" LIBARCHNAME "_ServerClassMachine: %s\n", + (result == JNI_TRUE ? "JNI_TRUE" : "JNI_FALSE")); + return result; +}