Fix mem_peak_usage on macos

Author: nikita-kud

samples/cpp/benchmark_app/main.cpp

@@ -36,20 +36,24 @@
 #include "statistics_report.hpp"
 #include "utils.hpp"
 
-#if defined _WIN32
+#if defined(_WIN32)
 #include <windows.h>
 #include <psapi.h>
-#else
+#elif  defined(__APPLE__) && defined(__MACH__)
+#include <sys/resource.h>
+#elif defined(__linux__)
 #include <fstream>
 #include <regex>
 #include <sstream>
+#else
+#error "unsupported OS"
 #endif
 
 // clang-format on
 
 namespace {
 
-#if defined _WIN32
+#if defined(_WIN32)
 
 int64_t get_peak_memory_usage() {
     PROCESS_MEMORY_COUNTERS mem_counters;
@@ -71,6 +75,22 @@ int64_t get_peak_memory_usage() {
     return static_cast<int64_t>(std::round(mem_counters.PeakWorkingSetSize / bytes_in_kilobyte));
 }
 
+#elif defined( __APPLE__ ) && defined( __MACH__ )
+
+int64_t get_peak_memory_usage() {
+    struct rusage usage;
+    // There is no VmPeak on macOS, so the only way is to use ru_maxrss.
+    // Please note, there's a difference between ru_maxrss and VmPeak:
+    // ru_maxrss is the maximum amount of physical memory (RAM) occupied by the process
+    // which, does not include memory-mapped files, pages reserved but not used, etc.
+    if (getrusage(RUSAGE_SELF, &usage) != 0) {
+        throw std::runtime_error("Can't get system memory values");
+    }
+
+    // in kilobytes
+    return static_cast<int64_t>(usage.ru_maxrss);
+}
+
 #else
 
 int64_t get_peak_memory_usage() {

tests/samples_tests/smoke_tests/test_benchmark_app.py

@@ -12,6 +12,7 @@
 """
 import json
 import os
+import platform
 import numpy as np
 import pathlib
 import pytest
@@ -63,7 +64,8 @@ def verify(sample_language, device, api=None, nireq=None, shape=None, data_shape
     assert 'FPS' in output
 
     # No Windows support due to the lack of the ‘psutil’ module in the CI infrastructure
-    if os.name == "posix":
+    # No Macos support due to no /proc/self/status file
+    if platform.system() == "Linux":
         assert 'Compile model ram used' in output
 
     if tmp_path:

tools/benchmark_tool/openvino/tools/benchmark/main.py

@@ -3,6 +3,7 @@
 
 import os
 import sys
+import platform
 from datetime import datetime
 
 from openvino import Dimension, properties
@@ -23,14 +24,15 @@
     averageCntReport, detailedCntReport
 
 def get_peak_memory_usage():    
-    if os.name == "posix":
+    if platform.system() == "Linux":
         with open("/proc/self/status", "r") as f:
             for line in f:
                 if line.startswith("VmPeak:"):
                     return int(line.split()[1])  # The value in KB
         raise RuntimeError("VmPeak attribute not found. Unable to determine peak memory usage.")
 
     # No Windows support due to the lack of the ‘psutil’ module in the CI infrastructure
+    # No Macos support due to no /proc/self/status file
     return None
 
 def log_memory_usage(logger, start_mem_usage, end_mem_usage, action_name):