70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "ProcStats.h"
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#if defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_ANDROID)
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#include <sys/resource.h>
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int sk_tools::getMaxResidentSetSizeMB() {
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struct rusage ru;
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getrusage(RUSAGE_SELF, &ru);
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#if defined(SK_BUILD_FOR_MAC)
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return static_cast<int>(ru.ru_maxrss / 1024 / 1024); // Darwin reports bytes.
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#else
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return static_cast<int>(ru.ru_maxrss / 1024); // Linux reports kilobytes.
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#endif
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}
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#elif defined(SK_BUILD_FOR_WIN32)
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#include <windows.h>
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#include <psapi.h>
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int sk_tools::getMaxResidentSetSizeMB() {
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PROCESS_MEMORY_COUNTERS info;
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GetProcessMemoryInfo(GetCurrentProcess(), &info, sizeof(info));
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return static_cast<int>(info.PeakWorkingSetSize / 1024 / 1024); // Windows reports bytes.
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}
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#else
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int sk_tools::getMaxResidentSetSizeMB() { return -1; }
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#endif
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#if defined(SK_BUILD_FOR_MAC)
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#include <mach/mach.h>
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int sk_tools::getCurrResidentSetSizeMB() {
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mach_task_basic_info info;
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mach_msg_type_number_t count = MACH_TASK_BASIC_INFO_COUNT;
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if (KERN_SUCCESS !=
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task_info(mach_task_self(), MACH_TASK_BASIC_INFO, (task_info_t)&info, &count)) {
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return -1;
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}
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return info.resident_size / 1024 / 1024; // Darwin reports bytes.
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}
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#elif defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID) // N.B. /proc is Linux-only.
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#include <unistd.h>
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#include <stdio.h>
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int sk_tools::getCurrResidentSetSizeMB() {
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const long pageSize = sysconf(_SC_PAGESIZE);
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long rssPages = 0;
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if (FILE* statm = fopen("/proc/self/statm", "r")) {
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// statm contains: program-size rss shared text lib data dirty, all in page counts.
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int rc = fscanf(statm, "%*d %ld", &rssPages);
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fclose(statm);
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if (rc != 1) {
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return -1;
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}
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}
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return rssPages * pageSize / 1024 / 1024;
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}
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#elif defined(SK_BUILD_FOR_WIN32)
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int sk_tools::getCurrResidentSetSizeMB() {
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PROCESS_MEMORY_COUNTERS info;
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GetProcessMemoryInfo(GetCurrentProcess(), &info, sizeof(info));
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return static_cast<int>(info.WorkingSetSize / 1024 / 1024); // Windows reports bytes.
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}
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#else
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int sk_tools::getCurrResidentSetSizeMB() { return -1; }
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#endif
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