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| -rw-r--r-- | README.rst | 8 |
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diff --git a/README.rst b/README.rst index 2471619706..cfcf8b5219 100644 --- a/README.rst +++ b/README.rst @@ -963,5 +963,13 @@ variable. The default is 0.5, which can be decreased to reduce RAM usage in memory constrained enviroments, or increased if performance starts to degrade. +Using `libjemalloc <http://jemalloc.net/>`_ can also yield a significant +improvement in overall amount, and especially in terms of giving back RAM +to the OS. To use it, the library must simply be put in the LD_PRELOAD +environment variable when launching Synapse. On Debian, this can be done +by installing the ``libjemalloc1`` package and adding this line to +``/etc/default/matrix-synaspse``:: + + LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.1 .. _`key_management`: https://matrix.org/docs/spec/server_server/unstable.html#retrieving-server-keys |