darling-xnu/tests/phys_footprint_interval_max.c
2023-05-16 21:41:14 -07:00

96 lines
3.7 KiB
C

/*
* Copyright (c) 2018 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
#include <darwintest.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <mach/mach_vm.h>
#include <mach/mach_init.h>
#include <sys/resource.h>
#include <libproc.h>
#include <libproc_internal.h>
#include <TargetConditionals.h>
T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
#define ALLOC_SIZE_LARGE 5*1024*1024
#define ALLOC_SIZE_SMALL 2*1024*1024
int proc_rlimit_control(pid_t pid, int flavor, void *arg);
T_DECL(phys_footprint_interval_max,
"Validate physical footprint interval tracking")
{
int ret;
struct rusage_info_v4 ru;
mach_vm_address_t addr = (mach_vm_address_t)NULL;
ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
T_QUIET;
T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
T_ASSERT_EQ(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
"Max footprint and interval footprint are equal prior to dirtying memory");
ret = mach_vm_allocate(mach_task_self(), &addr, (mach_vm_size_t)ALLOC_SIZE_LARGE, VM_FLAGS_ANYWHERE);
T_QUIET;
T_ASSERT_MACH_SUCCESS(ret, "mach_vm_allocate(ALLOC_SIZE_LARGE)");
memset((void *)addr, 0xab, ALLOC_SIZE_LARGE);
ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
T_QUIET;
T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
T_ASSERT_EQ(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
"Max footprint and interval footprint are equal after dirtying large memory region");
mach_vm_deallocate(mach_task_self(), addr, (mach_vm_size_t)ALLOC_SIZE_LARGE);
ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
T_QUIET;
T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
T_ASSERT_EQ(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
"Max footprint and interval footprint are still equal after freeing large memory region");
ret = proc_reset_footprint_interval(getpid());
T_ASSERT_POSIX_SUCCESS(ret, "proc_reset_footprint_interval()");
ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
T_QUIET;
T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
T_ASSERT_GT(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
"Max footprint is greater than interval footprint after resetting interval");
ret = mach_vm_allocate(mach_task_self(), &addr, (mach_vm_size_t)ALLOC_SIZE_SMALL, VM_FLAGS_ANYWHERE);
T_QUIET;
T_ASSERT_MACH_SUCCESS(ret, "mach_vm_allocate(ALLOC_SIZE_SMALL)");
memset((void *)addr, 0xab, ALLOC_SIZE_SMALL);
ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
T_QUIET;
T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
T_ASSERT_GT(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
"Max footprint is still greater than interval footprint after dirtying small memory region");
}