Volatile and Loop Invariant Code Motion
A demonstration of visibility problem in multi-threaded programs and how volatile solves it.
Category Archives: Java
Lock Coarsening
Demo of lock coarsening.
Windows Management Instrumentation (WMI) from Java
This post shows how to instrument Windows resources using WMI and Java. The attached source code has 3 programs:
PrintInstances.javaprints all instances of a given class. For e.g., to retrieve a list of services useWin32_Servicein WML.SimpleServiceManager.javastarts or stops a given service.ServiceManager.javastarts or stops a service by starting/stopping any dependents.
Erlang vs. Java message passing times
Message passing times in Erlang vs. Java
Java solution for excercise 8.11 in Programming Erlang
Create N processes in a ring. Send a message round the ring M times so that a total of N * M messages get sent. Time how long this takes for different values of N and M.
To volatile, or not to volatile
A demonstration of problem when volatile is not used.