Sphinx is a fast in-memory key-value store that is compatible with the Memcached wire protocol.

Sphinx partitions data between logical cores, similar to MICA (Lim et al., 2014), so that a specific core manages each key. Sphinx also partitions connection sockets between cores. If a remote core manages a request key, Sphinx uses message passing to execute the request on that core. To manage key-value pairs, Sphinx uses an in-memory, log-structured memory allocator, similar to RAMCloud (Rumble et al., 2014).

To build Sphinx, you need:

• C++17 compatible compiler, such as GCC 7 or Clang 5
• CMake
• Ragel
• Google Test
• Google Benchmark library

To build Sphinx, run the following commands:

mkdir build
cd build
cmake ..
make

To start Sphinx, run the following command in the build directory:

sphinxd/sphinxd

Hyeontaek Lim, Dongsu Han, David G. Andersen, and Michael Kaminsky. 2014. MICA: a holistic approach to fast in-memory key-value storage. In Proceedings of the 11th USENIX Conference on Networked Systems Design and Implementation (NSDI'14). USENIX Association, Berkeley, CA, USA, 429-444.

Stephen M. Rumble, Ankita Kejriwal, and John Ousterhout. 2014. Log-structured memory for DRAM-based storage. In Proceedings of the 12th USENIX conference on File and Storage Technologies (FAST'14). USENIX Association, Berkeley, CA, USA, 1-16.