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HAProxy - Load balancer
4be0c7c655
In the mux-to-mux data forwarding, we now try, as far as possible to send at least a buffer. Of course, if the consumer side is congested or if nothing more can be received, we leave. But the idea is to retry to fast-forward data if less than a buffer was forwarded. It is only performed for buffer fast-forwarding, not splicing. The idea behind this patch is to optimise the forwarding, when a first forward was performed to complete a buffer with some existing data. In this case, the amount of data forwarded is artificially limited because we are using a non-empty buffer. But without this limitation, it is highly probable that a full buffer could have been sent. And indeed, with H2 client, a significant improvement was observed during our test. To do so, .done_fastfwd() callback function must be able to deal with interim forwards. Especially for the H2 mux, to remove H2_SF_NOTIFIED flags on the H2S on the last call only. Otherwise, the H2 stream can be blocked by itself because it is in the send_list. IOBUF_FL_INTERIM_FF iobuf flag is used to notify the consumer it is not the last call. This flag is then removed on the last call. |
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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)