A memory allocator optimized for high concurrency and low memory consumption on modern multi-core and multi-processor systems. It includes special support for NUMA systems (allocating memory from the nearest NUMA node, for example).
It is about 60% faster than the allocator included with Microsoft Visual C++ and uses less than half the memory for small objects (< 256 bytes), leading to better cache utilization; this also makes it ideal for applications that allocate a huge number of small objects.
In many tests it is about 10% faster than the allocator included with Intel Thread Building Blocks.
It is implemented in C++ with a small amount of x86 Assembly and was recently converted to C++11.
Access to low-level synchronization and bit-manipulation instructions is done through compiler intrinsics.
The architecture and the implementation details are described in the following document:
Architecture and implementation details (PDF)
Overview of main data structures:
