/* * Copyright (C) 2019 Metrological Group B.V. * Copyright (C) 2019 Igalia S.L. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #if OS(LINUX) #include <sys/resource.h> #include <wtf/linux/CurrentProcessMemoryStatus.h> struct ProcessMemoryFootprint { uint64_t current; uint64_t peak; static ProcessMemoryFootprint now() { struct rusage ru; getrusage(RUSAGE_SELF, &ru); ProcessMemoryStatus ps; currentProcessMemoryStatus(ps); return { ps.resident, static_cast<uint64_t>(ru.ru_maxrss) * 1024 }; } static void resetPeak() { // To reset the peak size, we need to write 5 to /proc/self/clear_refs // as described in `man -s5 proc`, in the clear_refs section. // Only available since 4.0. FILE* f = fopen("/proc/self/clear_refs", "w"); if (!f) return; fwrite("5", 1, 1, f); fclose(f); } }; #endif