Source Code Cross Referenced for MeasureBaselineMemoryFootprint.java in  » IDE-Netbeans » performance » memory » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » performance » memory 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003:         *
004:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * The contents of this file are subject to the terms of either the GNU
007:         * General Public License Version 2 only ("GPL") or the Common
008:         * Development and Distribution License("CDDL") (collectively, the
009:         * "License"). You may not use this file except in compliance with the
010:         * License. You can obtain a copy of the License at
011:         * http://www.netbeans.org/cddl-gplv2.html
012:         * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013:         * specific language governing permissions and limitations under the
014:         * License.  When distributing the software, include this License Header
015:         * Notice in each file and include the License file at
016:         * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
017:         * particular file as subject to the "Classpath" exception as provided
018:         * by Sun in the GPL Version 2 section of the License file that
019:         * accompanied this code. If applicable, add the following below the
020:         * License Header, with the fields enclosed by brackets [] replaced by
021:         * your own identifying information:
022:         * "Portions Copyrighted [year] [name of copyright owner]"
023:         *
024:         * Contributor(s):
025:         *
026:         * The Original Software is NetBeans. The Initial Developer of the Original
027:         * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028:         * Microsystems, Inc. All Rights Reserved.
029:         *
030:         * If you wish your version of this file to be governed by only the CDDL
031:         * or only the GPL Version 2, indicate your decision by adding
032:         * "[Contributor] elects to include this software in this distribution
033:         * under the [CDDL or GPL Version 2] license." If you do not indicate a
034:         * single choice of license, a recipient has the option to distribute
035:         * your version of this file under either the CDDL, the GPL Version 2 or
036:         * to extend the choice of license to its licensees as provided above.
037:         * However, if you add GPL Version 2 code and therefore, elected the GPL
038:         * Version 2 license, then the option applies only if the new code is
039:         * made subject to such option by the copyright holder.
040:         */
041:
042:        package memory;
043:
044:        import java.io.BufferedReader;
045:        import java.io.File;
046:        import java.io.FileReader;
047:        import java.io.IOException;
048:        import java.io.InputStreamReader;
049:        import java.io.LineNumberReader;
050:
051:        import java.util.StringTokenizer;
052:
053:        /**
054:         * Measure memory footprint, by checking size of memory occupied by runide process.
055:         * On Windows platform used <b>pslist.exe</b>, on Unix platform used <b>ps</b>. 
056:         * Output of these commands is parsed and measured memory size
057:         * (windows - "MEM", unix - "RES", "RSS") presents as measured memory footprint.
058:         *
059:         * @author  mmirilovic@netbeans.org
060:         */
061:        public class MeasureBaselineMemoryFootprint extends
062:                org.netbeans.junit.NbPerformanceTestCase {
063:
064:            /** Used platform. */
065:            private static String platform;
066:
067:            /** IDE process PID. */
068:            private static long pid;
069:
070:            /** Ouput file where is logged ouput from ps command. */
071:            private static String PS_OUTPUT_FILENAME = "psOutput.txt";
072:
073:            private static final String UNIX = "unix";
074:            private static final String WINDOWS = "windows";
075:            private static final String UNKNOWN = "unknown";
076:
077:            private static final String[][] SUPPORTED_PLATFORMS = {
078:                    { "Linux,i386", UNIX }, { "SunOS,sparc", UNIX },
079:                    { "Windows_NT,x86", WINDOWS },
080:                    { "Windows_2000,x86", WINDOWS },
081:                    { "Windows_XP,x86", WINDOWS },
082:                    { "Windows_95,x86", WINDOWS },
083:                    { "Windows_98,x86", WINDOWS },
084:                    { "Windows_Me,x86", WINDOWS } };
085:
086:            /** Define testcase
087:             * @param testName name of the testcase
088:             */
089:            public MeasureBaselineMemoryFootprint(String testName) {
090:                super (testName);
091:            }
092:
093:            /** Measure baseline memory footprint */
094:            public void testMemoryFootprintAfterStart() {
095:                long memory;
096:                try {
097:                    memory = getMemoryConsumption();
098:
099:                    if (memory > 0) {
100:                        reportPerformance("Memory Consumption After Start",
101:                                memory, "kB", 1);
102:                    } else
103:                        fail("Measured value = " + memory
104:                                + "kB - it's wrong value!");
105:
106:                } catch (Exception exc) {
107:                    exc.printStackTrace(getLog());
108:                    fail("Exception rises during measurement : "
109:                            + exc.toString());
110:                }
111:            }
112:
113:            /**
114:             * Measure memory footprint. Looks for file [xtest.tmpdir]/ide.pid
115:             * to IDE process PID which is used by utils to measure memory.
116:             * @throws IOException if [xtest.tmpdir]/ide.pid file doesn't exist
117:             * @return return measured memory footprint
118:             */
119:            private long getMemoryConsumption() throws IOException {
120:                String workdir = System.getProperty("xtest.tmpdir");
121:
122:                File ideRunning;
123:                log("Start");
124:
125:                if (workdir != null) {
126:                    log("Workdir {" + workdir + "}.");
127:                    workdir = workdir.substring(0, workdir
128:                            .lastIndexOf(File.separator));
129:
130:                    // create flag file indicating running tests
131:                    ideRunning = new File(workdir, "ide.pid");
132:                    log("Looking for file {" + ideRunning.getAbsolutePath()
133:                            + "}.");
134:
135:                    if (ideRunning.exists()) {
136:                        log("PID file exists.");
137:                        try {
138:                            LineNumberReader reader = new LineNumberReader(
139:                                    new FileReader(ideRunning));
140:                            String line = reader.readLine();
141:                            if (line != null) {
142:                                try {
143:                                    pid = Long.parseLong(line);
144:                                    log("Measure memory footprint of process with PID="
145:                                            + pid);
146:                                    long measuredMemory = measureMemory();
147:                                    Thread.sleep(2000);
148:                                    return measuredMemory;
149:                                } catch (NumberFormatException nfe) {
150:                                    nfe.printStackTrace(getLog());
151:                                    fail("Cannot parse PID written in the ide.pid file: "
152:                                            + line + "- cannot measure.");
153:                                }
154:                            }
155:                        } catch (IOException ioe) {
156:                            ioe.printStackTrace(getLog());
157:                            fail("IOException when reading PID from ide.pid file - cannot measure");
158:                        } catch (Exception e) {
159:                            e.printStackTrace(getLog());
160:                            fail("Exception when trying to measure IDE's used memory");
161:                        }
162:                    } else {
163:                        fail("Cannot find file containing PID of running IDE ("
164:                                + ideRunning.getAbsolutePath()
165:                                + ") - cannot measure");
166:                    }
167:                } else {
168:                    fail("xtest.workdir property is not specified - cannot measure");
169:                }
170:                fail("Wrong state");
171:                return 0;
172:            }
173:
174:            /**
175:             * Run appropriate command against used platform.
176:             * @return return measured memory footprint
177:             */
178:            private long measureMemory() {
179:                platform = getPlatform();
180:
181:                log("Platform=" + platform);
182:
183:                if (platform.equals(UNIX))
184:                    return psOnUnix();
185:                else if (platform.equals(WINDOWS))
186:                    return psOnWindows();
187:                else
188:                    fail("Unsupported platform!");
189:
190:                return 0;
191:            }
192:
193:            /**
194:             * Execute appropriate command and save output as file psOutput.txt.
195:             * @param psCommand command to be runned (using platform dependent util)
196:             */
197:            private void executePsCommand(String psCommand) {
198:                log("Ecexute command: [" + psCommand + "].");
199:
200:                try {
201:                    Process ps = Runtime.getRuntime().exec(psCommand);
202:
203:                    StringBuffer buffer = new StringBuffer();
204:                    BufferedReader dataInput = new BufferedReader(
205:                            new InputStreamReader(ps.getInputStream()));
206:                    String line;
207:
208:                    while ((line = dataInput.readLine()) != null) {
209:                        buffer.append(line);
210:                        buffer.append('\n');
211:                    }
212:
213:                    getLog(PS_OUTPUT_FILENAME).print(buffer.toString());
214:                    ps.waitFor();
215:
216:                    log("ps command exit value = " + ps.exitValue());
217:                } catch (InterruptedException ie) {
218:                    ie.printStackTrace(getLog());
219:                    log("InterruptedException when ps :" + ie.toString());
220:                } catch (IOException ioe) {
221:                    ioe.printStackTrace(getLog());
222:                    log("None output from command ps, exception arise "
223:                            + ioe.toString());
224:                }
225:            }
226:
227:            /**
228:             * Execute commands :
229:             * <pre>
230:             * ps -A -o pid,comm,rss
231:             * </pre>
232:             * and save output as file psOutput.txt.
233:             * @param psCommand command to be runned (using platform depend util)
234:             */
235:            private long psOnUnix() {
236:                long returnValue = 0;
237:
238:                executePsCommand("ps -A -o pid,comm,rss");
239:                returnValue = parsePsFile();
240:
241:                return returnValue;
242:            }
243:
244:            /**
245:             * Execute commands :
246:             * <pre>
247:             * pslist.exe
248:             * </pre>
249:             * and save output as file psOutput.txt.
250:             * @param psCommand command to be runned (using platform depend util)
251:             */
252:            private long psOnWindows() {
253:                String xtestHome = System.getProperty("xtest.tmpdir");
254:                if (xtestHome != null) {
255:                    File psFile = new File(xtestHome, "pslist.exe");
256:                    String psPath = psFile.getAbsolutePath();
257:                    String psCommand = psPath;
258:                    executePsCommand(psCommand);
259:                    return parsePsFile();
260:                } else {
261:                    fail("xtest.home system property not set - cannot find ps distributed with XTest on windows");
262:                }
263:                return 0;
264:            }
265:
266:            /**
267:             * Parse file (created as output from ps command) and looks for line with appropriate pid.
268:             * File can be found (if exists) after test run in working directory. If file has not been created
269:             * return 0. If work dir doesn't exist or output file exists but line with appropriate PID doens't
270:             * exists there -> test fails.
271:             * @return measured memory - parsed output from command ps
272:             */
273:            private long parsePsFile() {
274:                String workDirPath = "";
275:
276:                try {
277:                    workDirPath = getWorkDir().getAbsolutePath();
278:                } catch (IOException ioe) {
279:                    ioe.printStackTrace(getLog());
280:                    fail("It isn't possible to get work directory, arise exception :"
281:                            + ioe.toString());
282:                }
283:
284:                try {
285:                    File psOutput = new File(workDirPath, PS_OUTPUT_FILENAME);
286:                    log("Parse file " + psOutput.getAbsolutePath());
287:
288:                    BufferedReader reader = new BufferedReader(new FileReader(
289:                            psOutput));
290:                    String line;
291:
292:                    while ((line = reader.readLine()) != null) {
293:                        log("\t Line=[" + line + "]");
294:                        long memory = getMemory(line);
295:                        if (memory != 0)
296:                            return memory;
297:                    }
298:
299:                    //            fail("Cannot find line with PID in output from ps command!");
300:
301:                } catch (IOException ioe) {
302:                    ioe.printStackTrace(getLog());
303:                    log("None output from ps command, arise exception :"
304:                            + ioe.toString());
305:                }
306:
307:                return 0;
308:            }
309:
310:            /** Get used memory size parsed from one line of output from command ps .
311:             * Transform memory size to [kB]. Type of parser depends on used platform.
312:             * @param line line from command ps's output file
313:             * @return measured memory
314:             */
315:            private long getMemory(String line) {
316:                StringTokenizer st = new StringTokenizer(line);
317:                String line_pid, line_mem;
318:                long memory = 0;
319:                long ppid;
320:
321:                if (line.length() > 0) {
322:                    if (platform.equals(UNIX)) {
323:                        line_pid = st.nextToken();
324:                        try {
325:                            ppid = Long.parseLong(line_pid);
326:                        } catch (NumberFormatException exc) {
327:                            return 0;
328:                        }
329:
330:                        log("\t proces pid=" + ppid + " looking for pid=" + pid);
331:
332:                        if (pid == ppid) {
333:                            st.nextToken();
334:                            line_mem = st.nextToken();
335:                            memory = Long.parseLong(line_mem);
336:                        }
337:
338:                    } else if (platform.equals(WINDOWS)) {
339:                        st.nextToken();
340:                        line_pid = st.nextToken();
341:                        try {
342:                            ppid = Long.parseLong(line_pid);
343:                        } catch (NumberFormatException exc) {
344:                            return 0;
345:                        }
346:
347:                        log("\t proces pid=" + ppid + " looking for pid=" + pid);
348:                        if (pid == ppid) {
349:                            for (int i = 0; i < 3; i++)
350:                                st.nextToken();
351:                            line_mem = st.nextToken();
352:
353:                            memory = Long.parseLong(line_mem);
354:                        }
355:                    } else {
356:                        fail("Unsupported platform!");
357:                    }
358:
359:                }
360:                log("Memory=" + memory);
361:                return memory;
362:            }
363:
364:            /**
365:             * Get platform on which the code is executed.
366:             * @return platform identification string
367:             */
368:            private static String getPlatform() {
369:
370:                String platformString = (System.getProperty("os.name", "")
371:                        + "," +
372:                /*
373:                System.getProperty("os.version","")+","+
374:                 */
375:                System.getProperty("os.arch", "")).replace(' ', '_');
376:                for (int i = 0; i < SUPPORTED_PLATFORMS.length; i++) {
377:                    if (platformString
378:                            .equalsIgnoreCase(SUPPORTED_PLATFORMS[i][0])) {
379:                        return SUPPORTED_PLATFORMS[i][1];
380:                    }
381:                }
382:                return UNKNOWN;
383:            }
384:
385:        }
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