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io: increase MAX_BUF from 16384 to 2MiB (#5397)

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jake 2023-01-27 12:50:55 +00:00 committed by GitHub
parent c90757f07a
commit fe2dcb9453
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 6 additions and 7 deletions
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8
tokio/src/fs/file/tests.rs
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@ -231,12 +231,12 @@ fn flush_while_idle() {
#[cfg_attr(miri, ignore)] // takes a really long time with miri
fn read_with_buffer_larger_than_max() {
// Chunks
let chunk_a = 16 * 1024;
let chunk_a = crate::io::blocking::MAX_BUF;
let chunk_b = chunk_a * 2;
let chunk_c = chunk_a * 3;
let chunk_d = chunk_a * 4;
assert_eq!(chunk_d / 1024, 64);
assert_eq!(chunk_d / 1024 / 1024, 8);
let mut data = vec![];
for i in 0..(chunk_d - 1) {
@ -303,12 +303,12 @@ fn read_with_buffer_larger_than_max() {
#[cfg_attr(miri, ignore)] // takes a really long time with miri
fn write_with_buffer_larger_than_max() {
// Chunks
let chunk_a = 16 * 1024;
let chunk_a = crate::io::blocking::MAX_BUF;
let chunk_b = chunk_a * 2;
let chunk_c = chunk_a * 3;
let chunk_d = chunk_a * 4;
assert_eq!(chunk_d / 1024, 64);
assert_eq!(chunk_d / 1024 / 1024, 8);
let mut data = vec![];
for i in 0..(chunk_d - 1) {

2
tokio/src/io/blocking.rs
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@ -26,7 +26,7 @@ pub(crate) struct Buf {
pos: usize,
}
pub(crate) const MAX_BUF: usize = 16 * 1024;
pub(crate) const MAX_BUF: usize = 2 * 1024 * 1024;
#[derive(Debug)]
enum State<T> {

3
tokio/src/io/stdio_common.rs
View File

@ -108,14 +108,13 @@ where
#[cfg(test)]
#[cfg(not(loom))]
mod tests {
use crate::io::blocking::MAX_BUF;
use crate::io::AsyncWriteExt;
use std::io;
use std::pin::Pin;
use std::task::Context;
use std::task::Poll;
const MAX_BUF: usize = 16 * 1024;
struct TextMockWriter;
impl crate::io::AsyncWrite for TextMockWriter {