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