tests/phys_footprint_interval_max.c

   1
   2 /*
   3  * Copyright (c) 2018 Apple Inc. All rights reserved.
   4  *
   5  * @APPLE_LICENSE_HEADER_START@
   6  *
   7  * This file contains Original Code and/or Modifications of Original Code
   8  * as defined in and that are subject to the Apple Public Source License
   9  * Version 2.0 (the 'License'). You may not use this file except in
  10  * compliance with the License. Please obtain a copy of the License at
  11  * http://www.opensource.apple.com/apsl/ and read it before using this
  12  * file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  19  * Please see the License for the specific language governing rights and
  20  * limitations under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24
  25 #include <darwintest.h>
  26
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29 #include <string.h>
  30 #include <mach/mach_vm.h>
  31 #include <mach/mach_init.h>
  32 #include <sys/resource.h>
  33 #include <libproc.h>
  34 #include <libproc_internal.h>
  35 #include <TargetConditionals.h>
  36
  37 #define ALLOC_SIZE_LARGE 5*1024*1024
  38 #define ALLOC_SIZE_SMALL 2*1024*1024
  39
  40 int proc_rlimit_control(pid_t pid, int flavor, void *arg);
  41
  42 T_DECL(phys_footprint_interval_max,
  43        "Validate physical footprint interval tracking")
  44 {
  45         int ret;
  46         struct rusage_info_v4 ru;
  47         mach_vm_address_t addr = (mach_vm_address_t)NULL;
  48
  49         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  50         T_QUIET;
  51         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  52         T_ASSERT_EQ(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  53                     "Max footprint and interval footprint are equal prior to dirtying memory");
  54
  55         ret = mach_vm_allocate(mach_task_self(), &addr, (mach_vm_size_t)ALLOC_SIZE_LARGE, VM_FLAGS_ANYWHERE);
  56         T_QUIET;
  57         T_ASSERT_MACH_SUCCESS(ret, "mach_vm_allocate(ALLOC_SIZE_LARGE)");
  58
  59         memset((void *)addr, 0xab, ALLOC_SIZE_LARGE);
  60
  61         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  62         T_QUIET;
  63         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  64         T_ASSERT_EQ(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  65                     "Max footprint and interval footprint are equal after dirtying large memory region");
  66
  67         mach_vm_deallocate(mach_task_self(), addr, (mach_vm_size_t)ALLOC_SIZE_LARGE);
  68
  69         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  70         T_QUIET;
  71         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  72         T_ASSERT_EQ(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  73                     "Max footprint and interval footprint are still equal after freeing large memory region");
  74
  75         ret = proc_reset_footprint_interval(getpid());
  76         T_ASSERT_POSIX_SUCCESS(ret, "proc_reset_footprint_interval()");
  77
  78         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  79         T_QUIET;
  80         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  81         T_ASSERT_GT(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  82                     "Max footprint is greater than interval footprint after resetting interval");
  83
  84         ret = mach_vm_allocate(mach_task_self(), &addr, (mach_vm_size_t)ALLOC_SIZE_SMALL, VM_FLAGS_ANYWHERE);
  85         T_QUIET;
  86         T_ASSERT_MACH_SUCCESS(ret, "mach_vm_allocate(ALLOC_SIZE_SMALL)");
  87         memset((void *)addr, 0xab, ALLOC_SIZE_SMALL);
  88
  89         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  90         T_QUIET;
  91         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  92         T_ASSERT_GT(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  93                     "Max footprint is still greater than interval footprint after dirtying small memory region");
  94 }