Evangelism

Memory Mapped Buffer


Understanding the Memory Mapped Buffer To understand the memory mapped buffer we first need to understand the Java buffer pool. The Java buffer pool space is located outside of the garbage collector-managed memory. It’s a way to allocate native off-heap memory.  What’s the benefit of using a Java buffer pool? To answer this question, let’s firstly […]

Java Non-Direct Buffer


Understanding  Java Non-Direct Buffer The Java buffer pool space is located outside of the garbage collector-managed memory. It’s a way to allocate native off-heap memory.  What’s the benefit of using a Java buffer pool? To answer this question, let’s firstly learn what byte buffers are. Byte Buffer Non-Direct Buffer java.nio package comes with the Bytebuffer […]

garbage collector-managed memory


Understanding garbage collector-managed memory The Java buffer pool space is located outside of the garbage collector-managed memory. It’s a way to allocate native off-heap memory.  What’s the benefit of using a Java buffer pool? To answer this question, let’s firstly learn what byte buffers are. Byte Buffer Non-Direct Buffer java.nio package comes with the Bytebuffer […]

Monitoring Kafka Consumer Applications


New in FusionReactor 7.0.0, we added the ability to monitor your applications usage of Apache Kafka. Firstly, what is Apache Kafka. Apache Kafka is a publish-subscribe service that allows for multiple system to publish to a given topic and for multiple system to create from a topic. It is commonly used to build real time […]

Java byte buffer


Java byte buffer – what is the buffer pool? The buffer pool space is located outside of the garbage collector-managed memory. It’s a way to allocate native off-heap memory.  What’s the benefit of using buffer pools? To answer this question, let’s firstly learn what byte buffers are. Java Byte Buffer Non-Direct Buffer java.nio package comes with […]

Java Buffer Pool Memory Space


Understanding the Java Buffer Pool Memory Space The Java buffer pool space is located outside of the garbage collector-managed memory. It’s a way to allocate native off-heap memory.  What’s the benefit of using a Java buffer pool? To answer this question, let’s firstly learn what byte buffers are. Byte Buffer Non-Direct Buffer java.nio package comes […]

Transaction Memory Values Explained


One of the metrics gathered by FusionReactor during the execution of a transaction (request) is the memory usage of the transaction. This is displayed on the Main tab in the transaction details page. Since FusionReactor 6 we have added the Transaction Allocated Memory value to these details. All of these numbers can be a little […]