Willy Tarreau
bd3b44edff
MINOR: debug: add random delay injection with "debug dev delay-inj"
The goal is to send signals to random threads at random instants so that they spin for a random delay in a relax() loop, trying to give back the CPU to another competing hardware thread, in hope that from time to time this can trigger in critical areas and increase the chances to provoke a latent concurrency bug. For now none were observed. For example, this command starts 64 such tasks waking after random delays of 0-1ms and delivering signals to trigger such loops on 3 random threads: for i in {1..64}; do socat - /tmp/sock1 <<< "expert-mode on;debug dev delay-inj 2 3" done This command is only enabled when DEBUG_DEV is set at build time.
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)
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