very fast at protocol indexer with flexible filtering, xrpc queries, cursor-backed event stream, and more, built on fjall
rust fjall at-protocol atproto indexer

[core] default to tuned jemalloc allocator master

feature-gate the global allocator (alloc-mimalloc/alloc-jemalloc/alloc-snmalloc) and switch the default from mimalloc to jemalloc. bake a tuned _rjem_malloc_conf into the binary (percpu_arena:percpu, background_thread, dirty_decay_ms:1000, muzzy_decay_ms:0), linux-gated. measured ~2.4x lower steady RSS (4.14->1.72 GiB) on a full-network backfill at no throughput cost.


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