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 T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
  37
  38 #define ALLOC_SIZE_LARGE 5*1024*1024
  39 #define ALLOC_SIZE_SMALL 2*1024*1024
  40
  41 int proc_rlimit_control(pid_t pid, int flavor, void *arg);
  42
  43 T_DECL(phys_footprint_interval_max,
  44     "Validate physical footprint interval tracking")
  45 {
  46         int ret;
  47         struct rusage_info_v4 ru;
  48         mach_vm_address_t addr = (mach_vm_address_t)NULL;
  49
  50         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  51         T_QUIET;
  52         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  53         T_ASSERT_EQ(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  54             "Max footprint and interval footprint are equal prior to dirtying memory");
  55
  56         ret = mach_vm_allocate(mach_task_self(), &addr, (mach_vm_size_t)ALLOC_SIZE_LARGE, VM_FLAGS_ANYWHERE);
  57         T_QUIET;
  58         T_ASSERT_MACH_SUCCESS(ret, "mach_vm_allocate(ALLOC_SIZE_LARGE)");
  59
  60         memset((void *)addr, 0xab, ALLOC_SIZE_LARGE);
  61
  62         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  63         T_QUIET;
  64         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  65         T_ASSERT_EQ(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  66             "Max footprint and interval footprint are equal after dirtying large memory region");
  67
  68         mach_vm_deallocate(mach_task_self(), addr, (mach_vm_size_t)ALLOC_SIZE_LARGE);
  69
  70         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  71         T_QUIET;
  72         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  73         T_ASSERT_EQ(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  74             "Max footprint and interval footprint are still equal after freeing large memory region");
  75
  76         ret = proc_reset_footprint_interval(getpid());
  77         T_ASSERT_POSIX_SUCCESS(ret, "proc_reset_footprint_interval()");
  78
  79         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  80         T_QUIET;
  81         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  82         T_ASSERT_GT(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  83             "Max footprint is greater than interval footprint after resetting interval");
  84
  85         ret = mach_vm_allocate(mach_task_self(), &addr, (mach_vm_size_t)ALLOC_SIZE_SMALL, VM_FLAGS_ANYWHERE);
  86         T_QUIET;
  87         T_ASSERT_MACH_SUCCESS(ret, "mach_vm_allocate(ALLOC_SIZE_SMALL)");
  88         memset((void *)addr, 0xab, ALLOC_SIZE_SMALL);
  89
  90         ret = proc_pid_rusage(getpid(), RUSAGE_INFO_V4, (rusage_info_t *)&ru);
  91         T_QUIET;
  92         T_ASSERT_POSIX_SUCCESS(ret, "proc_pid_rusage");
  93         T_ASSERT_GT(ru.ri_lifetime_max_phys_footprint, ru.ri_interval_max_phys_footprint,
  94             "Max footprint is still greater than interval footprint after dirtying small memory region");
  95 }