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Diffstat (limited to 'docs/sample_config.yaml')
| -rw-r--r-- | docs/sample_config.yaml | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/docs/sample_config.yaml b/docs/sample_config.yaml index 03a0f6314c..05a3606da0 100644 --- a/docs/sample_config.yaml +++ b/docs/sample_config.yaml @@ -784,6 +784,24 @@ caches: # #cache_entry_ttl: 30m + # This flag enables cache autotuning, and is further specified by the sub-options `max_cache_memory_usage`, + # `target_cache_memory_usage`, `min_cache_ttl`. These flags work in conjunction with each other to maintain + # a balance between cache memory usage and cache entry availability. You must be using jemalloc to utilize + # this option, and all three of the options must be specified for this feature to work. + #cache_autotuning: + # This flag sets a ceiling on much memory the cache can use before caches begin to be continuously evicted. + # They will continue to be evicted until the memory usage drops below the `target_memory_usage`, set in + # the flag below, or until the `min_cache_ttl` is hit. + #max_cache_memory_usage: 1024M + + # This flag sets a rough target for the desired memory usage of the caches. + #target_cache_memory_usage: 758M + + # 'min_cache_ttl` sets a limit under which newer cache entries are not evicted and is only applied when + # caches are actively being evicted/`max_cache_memory_usage` has been exceeded. This is to protect hot caches + # from being emptied while Synapse is evicting due to memory. + #min_cache_ttl: 5m + # Controls how long the results of a /sync request are cached for after # a successful response is returned. A higher duration can help clients with # intermittent connections, at the cost of higher memory usage. |