mention libjemalloc in readme (#3877)

This commit is contained in:
Vincent Breitmoser 2018-09-15 22:03:27 +02:00 committed by Matthew Hodgson
parent 24efb2a70d
commit c8642720c9
1 changed files with 8 additions and 0 deletions

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@ -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