I suspect that calls from separate threads (>15) are having a negative effect on performance. Is there a better way to get at the system time in concurrent applications?
What is the semantics of compare and swap in Java? Namely, does the compare and swap method of an AtomicInteger just guarantee ordered access between different threads to the particular memory ...
What is the method generally used for doing the performance analysis of a multi-threaded Java application. I need to monitor the utilization of the processor cores.
We have a excel based calc engine that we read using POI and Java. As of now the throttle limit is approx 30-40 concurrent users. We want to increase this to ...
I was trying some benchmark over these two ( Software transactional memory & Atomic Operation , i guess both are not same ), though i have not done much using STM ...
I'm working on a data analyzing program in Java. The data is from car sensors, and it's delivered in a CSV format. It needs to the read, parsed to double then ...
In the following example, one thread is sending "messages" via a ByteBuffer which is the consumer is taking. The best performance is very good but its not consistent.
While browsing through the source code of the java.util.concurrency package, I noticed an idiomatic use of ReentrantLock that I had not seen before: member RentrantLock variables were never accessed directly from ...
I was wondering how can i make my website development architecture/environment so that my code can handle thousands of users logged in without crash, eg social networking website . What kind of coding styles or techniques should one have to follow so that website gives best performance and handle any number of users or how can i test that my website ...