blob: b90802c14ea656802acda7754c10eab29e52b657 [file] [log] [blame]
// Copyright 2018 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>
int main(int argc, char** argv) {
char* buf;
size_t i, size;
if (argc < 2) {
fprintf(stderr, "Usage: ./memory-eater-locked <size in MB>\n");
return 1;
if (mlockall(MCL_FUTURE)) {
fprintf(stderr, "Failed to lock pages: %d\n", errno);
return 1;
size = strtol(argv[1], NULL, 10);
size *= 1024 * 1024;
printf("Allocating %zd bytes\n", size);
buf = (char*) malloc(size);
memset(buf, 'x', size);
return 0;