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9e99cfbeb6
It was only used to protect the list which is now an mt_list so it doesn't provide any required protection anymore. It obviously also used to provide strict ordering between the writer and the reader when the writer started to update the messages, but that's now covered by the oredered tail updates and updates to the readers count to protect the area. The message rate on small thread counts (up to 12) saw a boost of roughly 5% while on large counts while for large counts it lost about 2% due to some contention now becoming visible elsewhere. Typical measures are 6.13M -> 6.61M at 3C6T, and 1.88 -> 1.92M at 24C48T on the EPYC.
The HAProxy documentation has been split into a number of different files for ease of use. Please refer to the following files depending on what you're looking for : - INSTALL for instructions on how to build and install HAProxy - BRANCHES to understand the project's life cycle and what version to use - LICENSE for the project's license - CONTRIBUTING for the process to follow to submit contributions The more detailed documentation is located into the doc/ directory : - doc/intro.txt for a quick introduction on HAProxy - doc/configuration.txt for the configuration's reference manual - doc/lua.txt for the Lua's reference manual - doc/SPOE.txt for how to use the SPOE engine - doc/network-namespaces.txt for how to use network namespaces under Linux - doc/management.txt for the management guide - doc/regression-testing.txt for how to use the regression testing suite - doc/peers.txt for the peers protocol reference - doc/coding-style.txt for how to adopt HAProxy's coding style - doc/internals for developer-specific documentation (not all up to date)