| /* |
| * Copyright (c) 2003, 2015, Oracle and/or its affiliates. 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. |
| * |
| * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 4858522 |
| * @summary Basic unit test of OperatingSystemMXBean.getTotalSwapSpaceSize() |
| * @author Steve Bohne |
| * @author Jaroslav Bachorik |
| * |
| * @library /lib/testlibrary |
| * |
| * @build TestTotalSwap jdk.testlibrary.* |
| * @run main TestTotalSwap |
| */ |
| |
| /* |
| * This test tests the actual swap size on linux and solaris. |
| * The correct value should be checked manually: |
| * Solaris: |
| * 1. In a shell, enter the command: "swap -l" |
| * 2. The value (reported in blocks) is in the "blocks" column. |
| * Linux: |
| * 1. In a shell, enter the command: "cat /proc/meminfo" |
| * 2. The value (reported in bytes) is in "Swap" entry, "total" column. |
| * Windows NT/XP/2000: |
| * 1. Run Start->Accessories->System Tools->System Information. |
| * 2. The value (reported in Kbytes) is in the "Page File Space" entry |
| * Windows 98/ME: |
| * Unknown. |
| * |
| * Usage: GetTotalSwapSpaceSize <expected swap size | "sanity-only"> [trace] |
| */ |
| |
| import com.sun.management.OperatingSystemMXBean; |
| import java.lang.management.*; |
| |
| import jdk.testlibrary.OSInfo; |
| import jdk.testlibrary.ProcessTools; |
| import jdk.testlibrary.OutputAnalyzer; |
| |
| public class TestTotalSwap { |
| |
| private static final OperatingSystemMXBean mbean = |
| (com.sun.management.OperatingSystemMXBean) |
| ManagementFactory.getOperatingSystemMXBean(); |
| |
| // Careful with these values. |
| // Min size for pass dynamically determined below. |
| // zero if no swap space is configured. |
| private static long min_size_for_pass = 0; |
| private static final long MAX_SIZE_FOR_PASS = Long.MAX_VALUE; |
| |
| public static void main(String args[]) throws Throwable { |
| // yocto might ignore the request to report swap size in bytes |
| boolean swapInKB = mbean.getVersion().contains("yocto"); |
| |
| long expected_swap_size = getSwapSizeFromOs(); |
| |
| long min_size = mbean.getFreeSwapSpaceSize(); |
| if (min_size > 0) { |
| min_size_for_pass = min_size; |
| } |
| |
| long size = mbean.getTotalSwapSpaceSize(); |
| |
| System.out.println("Total swap space size in bytes: " + size); |
| |
| if (expected_swap_size > -1) { |
| if (size != expected_swap_size) { |
| // try the expected size in kiloBytes |
| if (!(swapInKB && expected_swap_size * 1024 == size)) { |
| throw new RuntimeException("Expected total swap size : " + |
| expected_swap_size + |
| " but getTotalSwapSpaceSize returned: " + |
| size); |
| } |
| } |
| } |
| |
| // sanity check |
| if (size < min_size_for_pass || size > MAX_SIZE_FOR_PASS) { |
| throw new RuntimeException("Total swap space size " + |
| "illegal value: " + size + " bytes " + |
| "(MIN = " + min_size_for_pass + "; " + |
| "MAX = " + MAX_SIZE_FOR_PASS + ")"); |
| } |
| |
| System.out.println("Test passed."); |
| } |
| |
| private static long getSwapSizeFromOs() throws Throwable { |
| OSInfo.OSType os = OSInfo.getOSType(); |
| |
| switch (os) { |
| // total used free shared buffers cached |
| // Mem: 16533540864 13638467584 2895073280 534040576 1630248960 6236909568 |
| // -/+ buffers/cache: 5771309056 10762231808 |
| // Swap: 15999168512 0 15999168512 |
| |
| case LINUX: { |
| String swapSizeStr = ProcessTools.executeCommand("free", "-b") |
| .firstMatch("Swap:\\s+([0-9]+)\\s+.*", 1); |
| return Long.parseLong(swapSizeStr); |
| } |
| case SOLARIS: { |
| // swapfile dev swaplo blocks free |
| // /dev/dsk/c0t0d0s1 136,1 16 1638608 1600528 |
| OutputAnalyzer out= ProcessTools.executeCommand( |
| "/usr/sbin/swap", |
| "-l" |
| ); |
| |
| long swapSize = 0; |
| |
| for (String line : out.asLines()) { |
| if (line.contains("swapfile")) continue; |
| |
| String[] vals = line.split("\\s+"); |
| if (vals.length == 5) { |
| swapSize += Long.parseLong(vals[3]) * 512; // size is reported in 512b blocks |
| } |
| } |
| |
| return swapSize; |
| } |
| case MACOSX: { |
| // total = 8192.00M used = 7471.11M free = 720.89M (encrypted) |
| String swapSizeStr = ProcessTools.executeCommand( |
| "/usr/sbin/sysctl", |
| "-n", |
| "vm.swapusage" |
| ).firstMatch("total\\s+=\\s+([0-9]+(\\.[0-9]+)?[Mm]?).*", 1); |
| if (swapSizeStr.toLowerCase().endsWith("m")) { |
| swapSizeStr = swapSizeStr.substring(0, swapSizeStr.length() - 1); |
| return (long)(Double.parseDouble(swapSizeStr) * 1024 * 1024); // size in MB |
| } |
| return (long)(Double.parseDouble(swapSizeStr) * 1024 * 1024); |
| } |
| default: { |
| System.err.println("Unsupported operating system: " + os); |
| } |
| } |
| |
| return -1; |
| } |
| } |