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0dc1cc93b6
We now grab a reference to the FD's tgid before manipulating the running_mask so that we're certain it corresponds to our own group (hence bits), and we drop it once we've set the bit. For now there's no measurable performance impact in doing this, which is great. The lock can be observed by perf top as taking a small share of the time spent in fd_update_events(), itself taking no more than 0.28% of CPU under 8 threads. However due to the fact that the thread groups are not yet properly spread across the pollers and the thread masks are still wrong, this will trigger some BUG_ON() in fd_insert() after a few tens of thousands of connections when threads other than those of group 1 are reached, and this is expected.
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)