f6599cf5a6
This commit is the last one of a serie whose objective is to restore QUIC transfer throughput performance to the state prior to the recent QUIC MUX buffer allocator rework. This gain is obtained by reporting received out-of-order ACK data range to the QUIC MUX which can then decount room in its txbuf window. This is implemented in QUIC streamdesc layer by adding a new invokation of notify_room callback. This is done into qc_stream_buf_store_ack() which handle out-of-order ACK data range. Previous commit has introduced merging of overlapping ACK data range. As such, it's easy to only report the newly acknowledged data range. As with in-order ACKs, this new notification is only performed on released streambuf. As such, when a streambuf instance is released, notify_room notification now also reports the total length of out-of-order ACK data range currently stored. This value is stored in a new streambuf member <room> to avoid unnecessary tree lookup. This <room> member also serves on in-order ACK notification to reduce the notified room. This prevents to report invalid values when overlap ranges are treated first out-of-order and then in-order, which would cause an invalid QUIC MUX txbuf window value. After this change has been implemented, performance has been significantly improved, both with ngtcp2-client rate usage and on interop goodput test. These values are now similar to the rate observed on older haproxy version before QUIC MUX buffer allocator rework. |
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HAProxy
HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.
Installation
The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.
Getting help
The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.
The issue tracker is only for bug reports or feature requests.
Documentation
The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.
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)
License
HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.