List of usage examples for java.lang Runtime maxMemory
public native long maxMemory();
From source file:org.loklak.api.admin.StatusService.java
@Override public JSONObject serviceImpl(Query post, HttpServletResponse response, Authorization rights, JSONObjectWithDefault permissions) throws APIException { if (post.isLocalhostAccess() && OS.canExecUnix && post.get("upgrade", "").equals("true")) { Caretaker.upgrade(); // it's a hack to add this here, this may disappear anytime }//from w w w . j a v a 2 s . c o m final String backend = DAO.getConfig("backend", ""); final boolean backend_push = DAO.getConfig("backend.push.enabled", false); JSONObject backend_status = null; JSONObject backend_status_index_sizes = null; if (backend.length() > 0 && !backend_push) try { backend_status = StatusService.status(backend); backend_status_index_sizes = backend_status == null ? null : (JSONObject) backend_status.get("index_sizes"); } catch (IOException e) { } long backend_messages = backend_status_index_sizes == null ? 0 : ((Number) backend_status_index_sizes.get("messages")).longValue(); long backend_users = backend_status_index_sizes == null ? 0 : ((Number) backend_status_index_sizes.get("users")).longValue(); long local_messages = DAO.countLocalMessages(); long local_users = DAO.countLocalUsers(); post.setResponse(response, "application/javascript"); // generate json Runtime runtime = Runtime.getRuntime(); JSONObject json = new JSONObject(true); JSONObject system = new JSONObject(true); system.put("assigned_memory", runtime.maxMemory()); system.put("used_memory", runtime.totalMemory() - runtime.freeMemory()); system.put("available_memory", runtime.maxMemory() - runtime.totalMemory() + runtime.freeMemory()); system.put("cores", runtime.availableProcessors()); system.put("threads", Thread.activeCount()); system.put("runtime", System.currentTimeMillis() - Caretaker.startupTime); system.put("time_to_restart", Caretaker.upgradeTime - System.currentTimeMillis()); system.put("load_system_average", OS.getSystemLoadAverage()); system.put("load_system_cpu", OS.getSystemCpuLoad()); system.put("load_process_cpu", OS.getProcessCpuLoad()); system.put("server_threads", LoklakServer.getServerThreads()); system.put("server_uri", LoklakServer.getServerURI()); JSONObject index = new JSONObject(true); long countLocalMinMessages = DAO.countLocalMessages(60000L); long countLocal10MMessages = DAO.countLocalMessages(600000L); long countLocalHourMessages = DAO.countLocalMessages(3600000L); long countLocalDayMessages = DAO.countLocalMessages(86400000L); long countLocalWeekMessages = DAO.countLocalMessages(604800000L); float mps1m = countLocalMinMessages / 60f; float mps10m = countLocal10MMessages / 600f; float mps1h = countLocalHourMessages / 3600f; float mps1d = countLocalDayMessages / 86400f; float mps1w = countLocalWeekMessages / 604800f; index.put("mps1m", mps1m); index.put("mps10m", mps10m); index.put("mps1h", mps1h); index.put("mps1d", mps1d); index.put("mps1w", mps1w); index.put("mps", (int) Math.max(mps1d, Math.max(mps1h, Math.max(mps10m, mps1m)))); // best of 1d, 1h and 10m JSONObject messages = new JSONObject(true); messages.put("size", local_messages + backend_messages); messages.put("size_local", local_messages); messages.put("size_local_minute", countLocalMinMessages); messages.put("size_local_10minutes", countLocal10MMessages); messages.put("size_local_hour", countLocalHourMessages); messages.put("size_local_day", countLocalDayMessages); messages.put("size_local_week", countLocalWeekMessages); messages.put("size_backend", backend_messages); messages.put("stats", DAO.messages.getStats()); JSONObject queue = new JSONObject(true); queue.put("size", QueuedIndexing.getMessageQueueSize()); queue.put("maxSize", QueuedIndexing.getMessageQueueMaxSize()); queue.put("clients", QueuedIndexing.getMessageQueueClients()); messages.put("queue", queue); JSONObject users = new JSONObject(true); users.put("size", local_users + backend_users); users.put("size_local", local_users); users.put("size_backend", backend_users); users.put("stats", DAO.users.getStats()); JSONObject queries = new JSONObject(true); queries.put("size", DAO.countLocalQueries()); queries.put("stats", DAO.queries.getStats()); JSONObject accounts = new JSONObject(true); accounts.put("size", DAO.countLocalAccounts()); JSONObject user = new JSONObject(true); user.put("size", DAO.user_dump.size()); JSONObject followers = new JSONObject(true); followers.put("size", DAO.followers_dump.size()); JSONObject following = new JSONObject(true); following.put("size", DAO.following_dump.size()); index.put("messages", messages); index.put("users", users); index.put("queries", queries); index.put("accounts", accounts); index.put("user", user); index.put("followers", followers); index.put("following", following); if (DAO.getConfig("retrieval.queries.enabled", false)) { List<QueryEntry> queryList = DAO.SearchLocalQueries("", 1000, "retrieval_next", "date", SortOrder.ASC, null, new Date(), "retrieval_next"); index.put("queries_pending", queryList.size()); } JSONObject client_info = new JSONObject(true); client_info.put("RemoteHost", post.getClientHost()); client_info.put("IsLocalhost", post.isLocalhostAccess() ? "true" : "false"); JSONObject request_header = new JSONObject(true); Enumeration<String> he = post.getRequest().getHeaderNames(); while (he.hasMoreElements()) { String h = he.nextElement(); request_header.put(h, post.getRequest().getHeader(h)); } client_info.put("request_header", request_header); json.put("system", system); json.put("index", index); json.put("client_info", client_info); return json; }
From source file:com.concentricsky.android.khanacademy.util.ThumbnailManager.java
private LruCache<Thumbnail, Bitmap> prepareCache() { // Total available heap size. This changes based on manifest android:largeHeap="true". (Fire HD, transformer both go from 48MB to 256MB) Runtime rt = Runtime.getRuntime(); long maxMemory = rt.maxMemory(); Log.v(LOG_TAG, "maxMemory:" + Long.toString(maxMemory)); // Want to use at most about 1/2 of available memory for thumbs. // In SAT Math category (116 videos), with a heap size of 48MB, this setting // allows 109 thumbs to be cached resulting in total heap usage around 34MB. long usableMemory = maxMemory / 2; return new LruCache<Thumbnail, Bitmap>((int) usableMemory) { @Override/*from ww w.j a v a 2 s .c o m*/ protected int sizeOf(Thumbnail key, Bitmap value) { return value.getByteCount(); } @Override protected void entryRemoved(boolean evicted, Thumbnail key, Bitmap oldValue, Bitmap newValue) { if (oldValue != newValue) { oldValue.recycle(); } } }; }
From source file:models.monitor.MonitorProvider.java
public PerformUsage getJVMMemoryUsage() { int mb = 1024 * 1024; Runtime rt = Runtime.getRuntime(); PerformUsage usage = new PerformUsage(); usage.totalMemory = (double) rt.totalMemory() / mb; usage.freeMemory = (double) rt.freeMemory() / mb; usage.usedMemory = (double) rt.totalMemory() / mb - rt.freeMemory() / mb; usage.maxMemory = (double) rt.maxMemory() / mb; usage.memoryUsagePercent = usage.usedMemory / usage.totalMemory * 100.0; // new BigDecimal().setScale(2) .divide(new BigDecimal(usage.totalMemory).setScale(2), RoundingMode.DOWN) // .setScale(2) // .multiply(new BigDecimal(100)).intValue(); // update current currentJvmPerformUsage = usage;//from w ww . j av a 2s.com return usage; }
From source file:org.ambraproject.action.debug.DebugInfoAction.java
@Override public String execute() throws Exception { if (!checkAccess()) { return ERROR; }//from w w w. ja v a 2 s .c o m timestamp = new Date(System.currentTimeMillis()); Runtime rt = Runtime.getRuntime(); jvmFreeMemory = (double) rt.freeMemory() / (1024.0 * 1024.0); jvmTotalMemory = (double) rt.totalMemory() / (1024.0 * 1024.0); jvmMaxMemory = (double) rt.maxMemory() / (1024.0 * 1024.0); HttpServletRequest req = ServletActionContext.getRequest(); tomcatVersion = ServletActionContext.getServletContext().getServerInfo(); sessionCount = SessionCounter.getSessionCount(); host = req.getLocalName(); hostIp = req.getLocalAddr(); buildInfo = generateBuildInfo(); // The easiest way I found to get the URL and username for the DB. // It's not that easy and involves opening a connection... Context initialContext = new InitialContext(); Context context = (Context) initialContext.lookup("java:comp/env"); DataSource ds = (DataSource) context.lookup("jdbc/AmbraDS"); Connection conn = null; try { conn = ds.getConnection(); DatabaseMetaData metadata = conn.getMetaData(); dbUrl = metadata.getURL(); dbUser = metadata.getUserName(); } finally { conn.close(); } Configuration config = ConfigurationStore.getInstance().getConfiguration(); FileStoreService filestoreService = (FileStoreService) context.lookup("ambra/FileStore"); filestore = filestoreService.toString(); solrUrl = (String) config.getProperty("ambra.services.search.server.url"); configuration = dumpConfig(config); cmdLine = IOUtils.toString(new FileInputStream("/proc/self/cmdline")); return SUCCESS; }
From source file:ome.services.util.JvmSettingsCheck.java
public JvmSettingsCheck() { final String fmt = "%s = %6s"; final Runtime rt = Runtime.getRuntime(); final int mb = 1024 * 1024; StringBuilder version = new StringBuilder(); for (String key : new String[] { "java.version", "os.name", "os.arch", "os.version" }) { if (version.length() != 0) { version.append("; "); }/*from w w w. j a v a2s . com*/ version.append(System.getProperty(key)); } log.info("Java version: " + version); log.info(String.format(fmt, "Max Memory (MB): ", (rt.maxMemory() / mb))); log.info(String.format(fmt, "OS Memory (MB): ", (getPhysicalMemory() / mb))); log.info(String.format(fmt, "Processors: ", rt.availableProcessors())); }
From source file:org.sentilo.samples.controller.SamplesController.java
@RequestMapping(value = { "/", "/home" })
public String runSamples(final Model model) {
// All this data must be created in the Catalog Application before start this
// sample execution. At least the application identity token id and the provider id must be
// declared in system twice
String restClientIdentityKey = samplesProperties.getProperty("rest.client.identityKey");
String providerId = samplesProperties.getProperty("rest.client.provider");
// For this example we have created a generic component with a status sensor that accepts text
// type observations, only for test purpose
String componentId = samplesProperties.getProperty("rest.client.component");
String sensorId = samplesProperties.getProperty("rest.client.sensor");
logger.info("Starting samples execution...");
String observationsValue = null;
String errorMessage = null;//from ww w .jav a 2 s .com
try {
// Get some system data from runtime
Runtime runtime = Runtime.getRuntime();
NumberFormat format = NumberFormat.getInstance();
StringBuilder sb = new StringBuilder();
long maxMemory = runtime.maxMemory();
long allocatedMemory = runtime.totalMemory();
long freeMemory = runtime.freeMemory();
sb.append("free memory: " + format.format(freeMemory / 1024) + "<br/>");
sb.append("allocated memory: " + format.format(allocatedMemory / 1024) + "<br/>");
sb.append("max memory: " + format.format(maxMemory / 1024) + "<br/>");
sb.append("total free memory: " + format.format((freeMemory + (maxMemory - allocatedMemory)) / 1024)
+ "<br/>");
// In this case, we're getting CPU status in text mode
observationsValue = sb.toString();
logger.info("Observations values: " + observationsValue);
// Create the sample sensor, only if it doesn't exists in the catalog
createSensorIfNotExists(restClientIdentityKey, providerId, componentId, sensorId);
// Publish observations to the sample sensor
sendObservations(restClientIdentityKey, providerId, componentId, sensorId, observationsValue);
} catch (Exception e) {
logger.error("Error publishing sensor observations: " + e.getMessage(), e);
errorMessage = e.getMessage();
}
logger.info("Samples execution ended!");
model.addAttribute("restClientIdentityKey", restClientIdentityKey);
model.addAttribute("providerId", providerId);
model.addAttribute("componentId", componentId);
model.addAttribute("sensorId", sensorId);
model.addAttribute("observations", observationsValue);
ObjectMapper mapper = new ObjectMapper();
try {
if (errorMessage != null && errorMessage.length() > 0) {
Object json = mapper.readValue(errorMessage, Object.class);
model.addAttribute("errorMsg", mapper.writerWithDefaultPrettyPrinter().writeValueAsString(json));
} else {
model.addAttribute("successMsg", "Observations sended successfully");
}
} catch (Exception e) {
logger.error("Error parsing JSON: {}", e.getMessage(), e);
errorMessage += (errorMessage.length() > 0) ? "<br/>" : "" + e.getMessage();
model.addAttribute("errorMsg", errorMessage);
}
return VIEW_SAMPLES_RESPONSE;
}
From source file:org.alfresco.repo.content.transform.TikaPoweredContentTransformer.java
private String calculateMemoryAndTimeUsage(ContentReader reader, long startTime) { long endTime = System.currentTimeMillis(); Runtime runtime = Runtime.getRuntime(); long totalMemory = runtime.totalMemory(); return String.format(USAGE_PATTERN, this.getClass().getName(), reader, (totalMemory - runtime.freeMemory()) / MEGABYTES, totalMemory / MEGABYTES, runtime.maxMemory() / MEGABYTES, (endTime - startTime)); }
From source file:org.openmrs.module.emrmonitor.metric.JavaRuntimeMetricProducer.java
/** * @return a list of produced metrics//from ww w.j av a2 s . c o m */ @Override public Map<String, String> produceMetrics() { Map<String, String> metrics = new LinkedHashMap<String, String>(); // Memory Runtime runtime = Runtime.getRuntime(); metrics.put("memory.total", FormatUtil.formatBytes(runtime.totalMemory())); metrics.put("memory.total.bytes", Long.toString(runtime.totalMemory())); metrics.put("memory.free", FormatUtil.formatBytes(runtime.freeMemory())); metrics.put("memory.free.bytes", Long.toString(runtime.freeMemory())); metrics.put("memory.maximum", FormatUtil.formatBytes(runtime.maxMemory())); metrics.put("memory.maximum.bytes", Long.toString(runtime.maxMemory())); // Date/time Calendar cal = Calendar.getInstance(); metrics.put("datetime.display", DateFormat.getDateTimeInstance().format(cal.getTime())); metrics.put("datetime.date", DateFormatUtils.ISO_DATE_FORMAT.format(cal)); metrics.put("datetime.time", DateFormatUtils.ISO_TIME_NO_T_FORMAT.format(cal)); metrics.put("datetime.timezone", cal.getTimeZone().getDisplayName()); // Java Properties sp = System.getProperties(); metrics.put("version", sp.getProperty("java.version")); metrics.put("vendor", sp.getProperty("java.vendor")); metrics.put("jvmVersion", sp.getProperty("java.vm.version")); metrics.put("jvmVendor", sp.getProperty("java.vm.vendor")); metrics.put("runtimeName", sp.getProperty("java.runtime.name")); metrics.put("runtimeVersion", sp.getProperty("java.runtime.version")); metrics.put("user.name", sp.getProperty("user.name")); metrics.put("user.language", sp.getProperty("user.language")); metrics.put("user.timezone", sp.getProperty("user.timezone")); metrics.put("user.directory", sp.getProperty("user.dir")); metrics.put("encoding", sp.getProperty("sun.jnu.encoding")); metrics.put("tempDirectory", sp.getProperty("java.io.tmpdir")); return metrics; }
From source file:org.uva.itast.TestOMRProcessor.java
@Test public void testProcessMultiPagePDFmultiDefinitions() { try {/*from w w w . j a v a 2s . co m*/ // if (false) // return; URL url = getClass().getClassLoader().getResource("56605.pdf"); File testPath = new File(url.toURI()); // use a single, common, template definition prepareConfig(testPath); File dir = testPath.getParentFile(); Vector<PageImage> errores; if (logger.isInfoEnabled()) { logger.info("Test with definitions in a zip."); //$NON-NLS-1$ } processor.getTemplates().clear(); File zipDefinitions = new File(dir, "form_test.zip"); processor.loadTemplateCollection(zipDefinitions.getAbsolutePath()); detectErrors(testPath); // deteccin de errores // use a collection of templates from a directory if (logger.isInfoEnabled()) { logger.info("Test with definitions in a directory."); //$NON-NLS-1$ } processor.getTemplates().clear(); processor.loadTemplateCollection(dir.getAbsolutePath()); detectErrors(testPath); } catch (Exception e) { fail("Can't configure test case." + e); } catch (OutOfMemoryError err) { Runtime runtime = Runtime.getRuntime(); long totalMemory = runtime.totalMemory(); long freeMemory = runtime.freeMemory(); long maxMemory = runtime.maxMemory(); String errorMsg = "testProcessMultiPagePDFmultiDefinitions(): Out of Memory.\n" + "Total:" + totalMemory + "\n" + "Max:" + maxMemory + "\n" + "Free:" + freeMemory; logger.fatal(errorMsg, err); //$NON-NLS-1$ fail(errorMsg); } }
From source file:weka.server.RootServlet.java
/** * Process a HTTP GET/*from w ww .j av a 2 s . c o m*/ * * @param request the request * @param response the response * * @throws ServletException * @throws IOException */ @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO if (!request.getRequestURI().equals(CONTEXT_PATH)) { return; } response.setContentType("text/html;charset=UTF-8"); response.setStatus(HttpServletResponse.SC_OK); PrintWriter out = response.getWriter(); try { out.println("<HTML>\n<HEAD>\n<TITLE>Weka server</TITLE>"); out.println("<META http-equiv=\"Refresh\" content=\"30;url=" + CONTEXT_PATH + "\">"); out.println("</HEAD>\n<BODY>"); out.println("<H2> Weka Server (" + m_server.getHostname() + ":" + m_server.getPort() + ")</H2>"); if (m_server.getMaster() != null) { out.println("Registered with master server: " + m_server.getMaster() + "<br>"); } out.println("Number of execution slots: " + m_server.getNumExecutionSlots() + "<br>"); out.println("Number of tasks executing: " + m_server.numRunningTasks() + "<br>"); out.println("Number of tasks queued: " + m_server.numQueuedTasks() + "<br>"); out.println("Load adjust factor: " + String.format("%.3f", m_server.getLoadAdjust()) + "<br>"); out.println("Server load ((#executing + #queued) * loadFactor / #execution_slots): " + m_server.getServerLoad() + "<p>"); System.gc(); Runtime run = Runtime.getRuntime(); long freeM = run.freeMemory(); long totalM = run.totalMemory(); long maxM = run.maxMemory(); out.println("Memory (free/total/max) in bytes: " + String.format("%,d", freeM) + " / " + String.format("%,d", totalM) + " / " + String.format("%,d", maxM) + "<p>"); if (m_server.getSlaves().size() > 0) { out.println("<H3>Slaves</H3>"); out.println("<p>"); out.println("<table border=\"1\">"); out.print("<tr><th>"); out.print("Host</th><th>Port</th><th>Status</th><th>Load</th></tr>\n"); Set<String> slaves = m_server.getSlaves(); for (String slave : slaves) { String[] parts = slave.split(":"); out.print("<tr>"); out.print("<td><a href=\"http://" + parts[0] + ":" + parts[1] + "\">" + parts[0] + "</a></td><td>" + parts[1] + "</td>"); double load = getSlaveLoad(m_server, slave); String okString = (load < 0) ? "connection error" : "OK"; out.print("<td>" + okString + "</td><td>" + load + "</td></tr>\n"); } out.print("</table><p>"); } out.println("<p>"); out.println("<H3>Tasks</H3>"); out.println("<table border=\"1\">"); out.print("<tr><th>"); out.print("Task name</th><th>ID</th><th>Server</th><th>Last execution</th><th>Next execution</th>" + "<th>Status</th><th>Purge</th></tr>\n"); List<WekaTaskMap.WekaTaskEntry> taskList = m_taskMap.getTaskList(); for (WekaTaskMap.WekaTaskEntry entry : taskList) { String name = entry.getName(); String id = entry.getID(); NamedTask task = m_taskMap.getTask(entry); TaskStatusInfo tsi = task.getTaskStatus(); // Date lastExecuted = m_taskMap.getExecutionTime(entry); Date lastExecuted = entry.getLastExecution(); Date nextExecution = null; if (task instanceof Scheduled) { nextExecution = ((Scheduled) task).getSchedule().nextExecution(lastExecuted); } out.print("<tr>"); out.print("<td><a href=\"" + GetTaskStatusServlet.CONTEXT_PATH + "?name=" + URLEncoder.encode(entry.toString(), "UTF-8") + "\">" + name + "</a></td>"); out.print("<td>" + id + "</td>"); String server = entry.getServer(); if (server.equals(m_server.getHostname() + ":" + m_server.getPort())) { server = "local"; } out.print("<td>"); if (!server.equals("local")) { out.print("<a href=\"http://" + server + "\">" + server + "</a></td>"); } else { out.print("" + server + "</td>"); } String formattedLastDate = " - "; String formattedNextDate = " - "; SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss"); if (lastExecuted != null) { formattedLastDate = sdf.format(lastExecuted); } out.print("<td>" + formattedLastDate + "</td>"); if (nextExecution != null) { formattedNextDate = sdf.format(nextExecution); } out.print("<td>" + formattedNextDate + "</td>"); out.print("<td>" + GetTaskStatusServlet.taskStatusInfoToString(tsi) + "</td>"); if (tsi.getExecutionStatus() != TaskStatusInfo.PROCESSING) { out.print("<td><a href=\"" + PurgeTaskServlet.CONTEXT_PATH + "?name=" + URLEncoder.encode(entry.toString(), "UTF-8") + "\">Remove</a></td>"); } else { out.print("<td> -- </td>"); } out.print("</tr>\n"); } out.print("</table><p>"); out.println("</BODY>\n</HTML>"); } catch (Exception ex) { ex.printStackTrace(); } finally { if (out != null) { out.flush(); out.close(); out = null; } } }