RpMalloc is used at run time in 6 crates (of which 5 optionally).

Depender (with downloads and own rev deps) RpMalloc version
4.5K 1 optimization_engine optional ^0.2
1.7K 6 evtx optional ^0.2.2
700 shadowsocks-rust optional ^0.2
160 vproxy optional ^0.2.2
1 fnntw optional ^0.2.2
clue optional ^0.2.2