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perf: Use custom allocator (#2768)

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This PR replaces the system allocator with a custom allocator to improve performance:

* Windows: mimalloc
* Unix: tikv-jemallocator

## Performance:

* Linux
  * `cpython --no-cache`: 208.8ms -> 190.5ms
  * `cpython`: 32.8ms -> 31ms
* Mac: 
  * `cpython --no-cache`: 436.3ms -> 380ms
  * `cpython`: 40.9ms -> 39.6ms
* Windows: 
  * `cpython --no-cache`: 367ms -> 268ms
  * `cpython`: 92.5ms -> 92.3ms
  
## Size

* Linux: +5MB from 13MB -> 18MB (I need to double check this)
* Mac: +0.7MB from 8.3MB-> 9MB
* Windows: -0.16MB from 8.29MB -> 8.13MB (that's unexpected)
This commit is contained in:
Micha Reiser 2023-02-11 19:26:07 +01:00 • committed by GitHub
parent d0f9ee33ec
commit 863e39fe5f
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8
crates/ruff_cli/src/main.rs
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@ -24,6 +24,14 @@ mod iterators;
mod printer;
mod resolve;
#[cfg(target_os = "windows")]
#[global_allocator]
static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
#[cfg(not(target_os = "windows"))]
#[global_allocator]
static GLOBAL: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
enum ExitStatus {
/// Linting was successful and there were no linting errors.
Success,