我使用Apache tomcat 7.02作为服务器。我使用sphinx4创建了一个应用程序，并将其部署在Apache tomcat服务器上。由于这个sphinx4应用程序需要大量内存才能执行。因此，为此，我分配了大量内存作为java堆空间（export CATALINA_OPTS=“-Xms1536m-Xmx1536m”）。我部署服务器的服务器是一个64位系统，上面有Debian Lenny，还有2Gb的RAM。我创建了一个Servlet，向它发布数据，获取结果。。。当我为10个用户运行它时，大约需要8分钟来处理，但如果我同时为100个用户运行，它会在tomcat状态中显示这一点
Free memory: 37.0 MB Total memory: 1484.81 MB Max memory: 1484.81 MB
我也试过使用System.gc（），但它没有gud。那么，有什么方法可以检查JVM的内存状态并在需要时释放它吗？
您需要确定资源的使用位置。我建议您使用内存探查器并更改程序以减少内存消耗。
如果您使用的是64位JVM，您可以使用-XX:+UseCompressedOops来减少内存消耗（它使用32位引用而不是64位引用）
编辑：如果您无法调整您的应用程序，则可能值得考虑升级您的服务器。一台24 GB服务器的成本约为1800英镑，可以在不更改代码的情况下扩展到1000个用户。）
Hi have this j2ee web application developed using spring framework. I have a problem with rendering mnessages in nihongo characters from the properties file. I tried converting the file to ascii using ...
Check this, List<String> list = new ArrayList<String>(); for (int i = 0; i < 10000; i++) { String value = (""+UUID.randomUUID().getLeastSignificantBits()).substring(3, ...
I am in the middle of solving a problem where I think it s best suited for a decorator and a state pattern. The high level setting is something like a sandwich maker and dispenser, where I have a set ...
I have been trying to execute a MS SQL Server stored procedure via JDBC today and have been unsuccessful thus far. The stored procedure has 1 input and 1 output parameter. With every combination I ...
I have a system which contains multiple applications connected together using JMS and Spring Integration. Messages get sent along a chain of applications. [App A] -> [App B] -> [App C] We set a ...
If I m given two Java Libraries in Jar format, 1 having no bells and whistles, and the other having lots of them that will mostly go unused.... my question is: How will the larger, mostly unused ...
I have a Class variable that holds a certain type and I need to get a variable that holds the corresponding array class. The best I could come up with is this: Class arrayOfFooClass = java.lang....
I m working on a Java desktop application that reads and writes from/to different files. I think a better solution would be to replace the file system by a SQLite database. How hard is it to migrate ...
