libmimalloc-sys is used at run time in 271 crates (of which 103 optionally). It is a direct run-time dependency in 9 crates. It's used only as a dev dependency in 60 crates.

Depender (with downloads and own rev deps) libmimalloc-sys version
885K 262 mimalloc ^0.1.42
41K 7 parity-util-mem optional ^0.1.14
10K pyembed optional ^0.1.28
700 2 difftastic =0.1.24
1.1K 30 tetsy-util-mem optional ^0.1.14
150 qcp =0.1.38
baz-difftastic =0.1.24
1 difftastic-lib =0.1.24
mimalloc2 ^0.1