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nixos/matrix-synapse: configure PYTHONMALLOC when using jemalloc

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Per a synapse FAQ entry[1] this should be set in combination with\
jemalloc to make sure that jemalloc can accurately calculate memory
usage.

[1] https://github.com/element-hq/synapse/blob/develop/docs/usage/administration/admin_faq.md#help-synapse-is-slow-and-eats-all-my-ramcpu
This commit is contained in:
Martin Weinelt
2024-12-30 17:29:02 +01:00
parent 3be90b9f3a
commit e6f67cc259
1 changed files with 1 additions and 0 deletions
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nixos/modules/services/matrix/synapse.nix
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@@ -1462,6 +1462,7 @@ in
baseServiceConfig = { baseServiceConfig = {
environment = optionalAttrs (cfg.withJemalloc) { environment = optionalAttrs (cfg.withJemalloc) {
LD_PRELOAD = "${pkgs.jemalloc}/lib/libjemalloc.so"; LD_PRELOAD = "${pkgs.jemalloc}/lib/libjemalloc.so";
PYTHONMALLOC = "malloc";
}; };
serviceConfig = { serviceConfig = {
Type = "notify"; Type = "notify";