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a698eb6739
The global streams list is exclusively used for "show sess", to look up a stream to shut down, and for the hard-stop. Having all of them in a single list is extremely expensive in terms of locking when using threads, with performance losses as high as 7% having been observed just due to this. This patch makes the list per-thread, since there's no need to have a global one in this situation. All call places just iterate over all threads. The most "invasive" changes was in "show sess" where the end of list needs to go back to the beginning of next thread's list until the last thread is seen. For now the lock was maintained to keep the code auditable but a next commit should get rid of it. The observed performance gain here with only 4 threads is already 7% (350krps -> 374krps).
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)