13 lines
826 B
Text
13 lines
826 B
Text
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# Synapse's architecture is quite RAM hungry currently - we deliberately cache
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# a lot of recent room data and metadata in RAM in order to speed up common
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# requests. We'll improve this in future, but for now the easiest way to either
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# reduce the RAM usage (at the risk of slowing things down) is to set the
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# almost-undocumented SYNAPSE_CACHE_FACTOR environment variable. Roughly
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# speaking, a SYNAPSE_CACHE_FACTOR of 1.0 will max out at around 3-4GB of
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# resident memory - this is what we currently run the matrix.org on. The
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# default setting is currently 0.1, which is probably around a ~700MB
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# footprint. You can dial it down further to 0.02 if desired, which targets
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# roughly ~512MB. Conversely you can dial it up if you need performance for
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# lots of users and have a box with a lot of RAM.
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SYNAPSE_CACHE_FACTOR=0.1
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