tests/phys_footprint_interval_max.c

   1 /*
   2  * Copyright (c) 2018 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #include <darwintest.h>
  25
  26 #include <stdlib.h>
  27 #include <unistd.h>
  28 #include <string.h>
  29 #include <mach/mach_vm.h>
  30 #include <mach/mach_init.h>
  31 #include <sys/resource.h>
  32 #include <libproc.h>
  33 #include <libproc_internal.h>
  34 #include <TargetConditionals.h>
  35
  36 #define ALLOC_SIZE_LARGE 5*1024*1024
  37 #define ALLOC_SIZE_SMALL 2*1024*1024
  38
  39 int proc_rlimit_control(pid_t pid, int flavor, void *arg);
  40
  41 T_DECL(phys_footprint_interval_max,
  42     "Validate physical footprint interval tracking")
  43 {
  44         int ret;
  45         struct rusage_info_v4 ru;
  46         mach_vm_address_t addr = (mach_vm_address_t)NULL;
  47
  48         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  49         T_QUIET;
  50         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  51         T_ASSERT_EQ(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  52             "Max footprint and interval footprint are equal prior to dirtying memory");
  53
  54         ret = mach_vm_allocate(mach_task_self(), &addr, (mach_vm_size_t)ALLOC_SIZE_LARGE, VM_FLAGS_ANYWHERE);
  55         T_QUIET;
  56         T_ASSERT_MACH_SUCCESS(ret, "mach_vm_allocate(ALLOC_SIZE_LARGE)");
  57
  58         memset((void *)addr, 0xab, ALLOC_SIZE_LARGE);
  59
  60         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  61         T_QUIET;
  62         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  63         T_ASSERT_EQ(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  64             "Max footprint and interval footprint are equal after dirtying large memory region");
  65
  66         mach_vm_deallocate(mach_task_self(), addr, (mach_vm_size_t)ALLOC_SIZE_LARGE);
  67
  68         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  69         T_QUIET;
  70         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  71         T_ASSERT_EQ(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  72             "Max footprint and interval footprint are still equal after freeing large memory region");
  73
  74         ret = proc_reset_footprint_interval(getpid());
  75         T_ASSERT_POSIX_SUCCESS(ret, "proc_reset_footprint_interval()");
  76
  77         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  78         T_QUIET;
  79         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  80         T_ASSERT_GT(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  81             "Max footprint is greater than interval footprint after resetting interval");
  82
  83         ret = mach_vm_allocate(mach_task_self(), &addr, (mach_vm_size_t)ALLOC_SIZE_SMALL, VM_FLAGS_ANYWHERE);
  84         T_QUIET;
  85         T_ASSERT_MACH_SUCCESS(ret, "mach_vm_allocate(ALLOC_SIZE_SMALL)");
  86         memset((void *)addr, 0xab, ALLOC_SIZE_SMALL);
  87
  88         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  89         T_QUIET;
  90         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  91         T_ASSERT_GT(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  92             "Max footprint is still greater than interval footprint after dirtying small memory region");
  93 }