mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 15:24:46 -05:00
6982c74e11
``` $ dd if=/dev/zero bs=65536 count=500000 | ./stdio # C baseline 500000+0 records in 500000+0 records out 32768000000 bytes transferred in 4.126087 secs (7941664827 bytes/sec) c: size 32768000000 reads 500000 blocksize 65536 ``` ``` $ dd if=/dev/zero bs=65536 count=500000 | deno run stdio.js # Deno 500000+0 records in 500000+0 records out 32768000000 bytes transferred in 4.279032 secs (7657806719 bytes/sec) deno: size 32768000000 reads 500000 blocksize 65536 ```
29 lines
No EOL
754 B
C
29 lines
No EOL
754 B
C
// From https://github.com/just-js/benchmarks/tree/main/01-stdio
|
|
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
|
|
int main(int argc, char *argv[]) {
|
|
unsigned int blocksize = 65536;
|
|
if (argc == 2) {
|
|
blocksize = atoi(argv[1]);
|
|
}
|
|
char buf[blocksize];
|
|
unsigned long size = 0;
|
|
unsigned int reads = 0;
|
|
int n = read(STDIN_FILENO, buf, blocksize);
|
|
while (n > 0) {
|
|
reads++;
|
|
size += n;
|
|
n = read(STDIN_FILENO, buf, blocksize);
|
|
}
|
|
if (n < 0) {
|
|
fprintf(stderr, "read: %s (%i)\n", strerror(errno), errno);
|
|
exit(1);
|
|
}
|
|
fprintf(stdout, "size %lu reads %u blocksize %u\n", size, reads, blocksize);
|
|
} |