all: mimalloc changes perfomance +67% ~ -86%

[oech3]

https://codspeed.io/uutils/coreutils/branches/oech3%3Alibstdbuf-test?utm_source=github&utm_medium=check&utm_content=button

mimalloc = { version = "0.1.48", features = ["override"] }

Hijacked bin! macro.

[oech3]

I missed how to use it. Some utils is +67%, but some util is -86%.

[oech3]

jemalloc: +32~-79%

[xtqqczze]

The CodeSpeed link shows no change?

[oech3]

It was accidentaly overrided by different run... (cannot reuse same pr

[xtqqczze]

GNU coreutils uses system allocator?

[oech3]

I don't know. But LD_PRELOAD might possible.

[xtqqczze]

I think there could be too many issues using a custom allocator, e.g. rust-lang/rust#149230.

[oech3]

updated the link. If we cannot swap allocator for selected utils of coreutils binary, there is nothing I can do.

[oech3]

Does clippy have config about useless allocation at this repo already?

[xtqqczze]

Does clippy have config about useless allocation at this repo already?

yes, it is warn by default: https://rust-lang.github.io/rust-clippy/master/index.html#redundant_allocation

[oech3]

how about enable only for musl (without features = ["override"] which cause -67%)?

[oech3]

Needed to use mimaloc at uucore to achieve ls+67%, but it involves other utils causing sort-86% "even for individual build" (cargo build -p uu_ls -p uu_sort). I have no idea how to use mimalloc only for uucore of ls.

I don't want to add feat_custom_allocator.

[oech3]

#10954 (comment)