Blog Posts

FusionReactor APM is sponsoring the 2018 O’Reilly Velocity conference in London 30 Oct – 2 Nov


This year, the FusionReactor team are once again proud sponsors of the O’Reilly Velocity conference, which is being held in London between 30th October and 2nd November 2018. We are offering a 25% discount on all event tickets – you can receive your discount, using the following coupon – FusionReactor25 We will be demonstrating FusionReactor […]

VisualVM Buffer pool


VisualVM Buffer pool – 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. Byte Buffer Non-Direct Buffer java.nio package comes with the […]

Monitoring Buffer Pools


Monitoring Buffer Pools – 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. Byte Buffer Non-Direct Buffer java.nio package comes with […]

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 […]