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fix: fix feature "alloc_trait" to adapt to the current Rust Allocator API #37

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fix: fix feature "alloc_trait" to adapt to the current Rust Allocator API #37

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106 changes: 17 additions & 89 deletions jemallocator/benches/roundtrip.rs
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Original file line number Diff line number Diff line change
@@ -1,18 +1,17 @@
//! Benchmarks the cost of the different allocation functions by doing a
//! roundtrip (allocate, deallocate).
#![feature(test, allocator_api)]
#![feature(slice_ptr_get)]
#![cfg(feature = "alloc_trait")]

extern crate test;

use jemallocator::Jemalloc;
use libc::c_int;
use std::{
alloc::{Alloc, Excess, Layout},
ptr,
};
use std::alloc::{Allocator, Layout};
use std::ptr;
use test::Bencher;
use tikv_jemalloc_sys::MALLOCX_ALIGN;
use tikv_jemallocator::Jemalloc;

#[global_allocator]
static A: Jemalloc = Jemalloc;
Expand Down Expand Up @@ -52,7 +51,7 @@ macro_rules! rt {
#[bench]
fn [<rt_mallocx_size_ $size _align_ $align>](b: &mut Bencher) {
b.iter(|| unsafe {
use jemalloc_sys as jemalloc;
use tikv_jemalloc_sys as jemalloc;
let flags = layout_to_flags(&Layout::from_size_align($size, $align).unwrap());
let ptr = jemalloc::mallocx($size, flags);
test::black_box(ptr);
Expand All @@ -63,7 +62,7 @@ macro_rules! rt {
#[bench]
fn [<rt_mallocx_nallocx_size_ $size _align_ $align>](b: &mut Bencher) {
b.iter(|| unsafe {
use jemalloc_sys as jemalloc;
use tikv_jemalloc_sys as jemalloc;
let flags = layout_to_flags(&Layout::from_size_align($size, $align).unwrap());
let ptr = jemalloc::mallocx($size, flags);
test::black_box(ptr);
Expand All @@ -77,47 +76,26 @@ macro_rules! rt {
fn [<rt_alloc_layout_checked_size_ $size _align_ $align>](b: &mut Bencher) {
b.iter(|| unsafe {
let layout = Layout::from_size_align($size, $align).unwrap();
let ptr = Jemalloc.alloc(layout.clone()).unwrap();
let ptr = Jemalloc.allocate(layout.clone()).unwrap();
test::black_box(ptr);
Jemalloc.dealloc(ptr, layout);
Jemalloc.deallocate(ptr.as_non_null_ptr(), layout);
});
}

#[bench]
fn [<rt_alloc_layout_unchecked_size_ $size _align_ $align>](b: &mut Bencher) {
b.iter(|| unsafe {
let layout = Layout::from_size_align_unchecked($size, $align);
let ptr = Jemalloc.alloc(layout.clone()).unwrap();
let ptr = Jemalloc.allocate(layout.clone()).unwrap();
test::black_box(ptr);
Jemalloc.dealloc(ptr, layout);
});
}

#[bench]
fn [<rt_alloc_excess_unused_size_ $size _align_ $align>](b: &mut Bencher) {
b.iter(|| unsafe {
let layout = Layout::from_size_align($size, $align).unwrap();
let Excess(ptr, _) = Jemalloc.alloc_excess(layout.clone()).unwrap();
test::black_box(ptr);
Jemalloc.dealloc(ptr, layout);
});
}

#[bench]
fn [<rt_alloc_excess_used_size_ $size _align_ $align>](b: &mut Bencher) {
b.iter(|| unsafe {
let layout = Layout::from_size_align($size, $align).unwrap();
let Excess(ptr, excess) = Jemalloc.alloc_excess(layout.clone()).unwrap();
test::black_box(ptr);
test::black_box(excess);
Jemalloc.dealloc(ptr, layout);
Jemalloc.deallocate(ptr.as_non_null_ptr(), layout);
});
}

#[bench]
fn [<rt_mallocx_zeroed_size_ $size _align_ $align>](b: &mut Bencher) {
b.iter(|| unsafe {
use jemalloc_sys as jemalloc;
use tikv_jemalloc_sys as jemalloc;
let flags = layout_to_flags(&Layout::from_size_align($size, $align).unwrap());
let ptr = jemalloc::mallocx($size, flags | jemalloc::MALLOCX_ZERO);
test::black_box(ptr);
Expand All @@ -128,7 +106,7 @@ macro_rules! rt {
#[bench]
fn [<rt_calloc_size_ $size _align_ $align>](b: &mut Bencher) {
b.iter(|| unsafe {
use jemalloc_sys as jemalloc;
use tikv_jemalloc_sys as jemalloc;
let flags = layout_to_flags(&Layout::from_size_align($size, $align).unwrap());
test::black_box(flags);
let ptr = jemalloc::calloc(1, $size);
Expand All @@ -141,70 +119,20 @@ macro_rules! rt {
fn [<rt_realloc_naive_size_ $size _align_ $align>](b: &mut Bencher) {
b.iter(|| unsafe {
let layout = Layout::from_size_align($size, $align).unwrap();
let ptr = Jemalloc.alloc(layout.clone()).unwrap();
let ptr = Jemalloc.allocate(layout.clone()).unwrap();
test::black_box(ptr);

// navie realloc:
let new_layout = Layout::from_size_align(2 * $size, $align).unwrap();
let ptr = {
let new_ptr = Jemalloc.alloc(new_layout.clone()).unwrap();
ptr::copy_nonoverlapping(ptr.as_ptr() as *const u8, new_ptr.as_ptr(), layout.size());
Jemalloc.dealloc(ptr, layout);
let new_ptr = Jemalloc.allocate(new_layout.clone()).unwrap();
ptr::copy_nonoverlapping(ptr.as_ptr() as *const u8, new_ptr.as_ptr() as *mut u8, layout.size());
Jemalloc.deallocate(ptr.as_non_null_ptr(), layout);
new_ptr
};
test::black_box(ptr);

Jemalloc.dealloc(ptr, new_layout);
});
}

#[bench]
fn [<rt_realloc_size_ $size _align_ $align>](b: &mut Bencher) {
b.iter(|| unsafe {
let layout = Layout::from_size_align($size, $align).unwrap();
let ptr = Jemalloc.alloc(layout.clone()).unwrap();
test::black_box(ptr);

let new_layout = Layout::from_size_align(2 * $size, $align).unwrap();
let ptr = Jemalloc.realloc(ptr, layout, new_layout.size()).unwrap();
test::black_box(ptr);

Jemalloc.dealloc(ptr, new_layout);
});
}

#[bench]
fn [<rt_realloc_excess_unused_size_ $size _align_ $align>](b: &mut Bencher) {
b.iter(|| unsafe {
let layout = Layout::from_size_align($size, $align).unwrap();
let ptr = Jemalloc.alloc(layout.clone()).unwrap();
test::black_box(ptr);

let new_layout = Layout::from_size_align(2 * $size, $align).unwrap();
let Excess(ptr, _) = Jemalloc
.realloc_excess(ptr, layout, new_layout.size())
.unwrap();
test::black_box(ptr);

Jemalloc.dealloc(ptr, new_layout);
});
}

#[bench]
fn [<rt_realloc_excess_used_size_ $size _align_ $align>](b: &mut Bencher) {
b.iter(|| unsafe {
let layout = Layout::from_size_align($size, $align).unwrap();
let ptr = Jemalloc.alloc(layout.clone()).unwrap();
test::black_box(ptr);

let new_layout = Layout::from_size_align(2 * $size, $align).unwrap();
let Excess(ptr, excess) = Jemalloc
.realloc_excess(ptr, layout, new_layout.size())
.unwrap();
test::black_box(ptr);
test::black_box(excess);

Jemalloc.dealloc(ptr, new_layout);
Jemalloc.deallocate(ptr.as_non_null_ptr(), new_layout);
});
}

Expand Down
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