d3bdd47698
We'll stop exporting the headers with the refactor Change-Id: I66174d5f732f8d04e4a5d10fa2b54563bd5aeeb2
80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
/*
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* Copyright (C) 2021-2025 The LineageOS Project
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "include/libinit_dalvik_heap.h"
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#include "include/libinit_utils.h"
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#include <sys/sysinfo.h>
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#include <string>
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#define GB(b) (b * 1024ull * 1024 * 1024)
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static const std::string kHeapStartSizeProp = "dalvik.vm.heapstartsize";
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static const std::string kHeapGrowthLimitProp = "dalvik.vm.heapgrowthlimit";
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static const std::string kHeapSizeProp = "dalvik.vm.heapsize";
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static const std::string kHeapMinFreeProp = "dalvik.vm.heapminfree";
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static const std::string kHeapMaxFreeProp = "dalvik.vm.heapmaxfree";
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static const std::string kHeapTargetUtilizationProp = "dalvik.vm.heaptargetutilization";
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struct dalvik_heap_info {
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std::string heapstartsize;
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std::string heapgrowthlimit;
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std::string heapsize;
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std::string heapminfree;
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std::string heapmaxfree;
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std::string heaptargetutilization;
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};
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static const dalvik_heap_info dalvik_heap_info_6144 = {
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.heapstartsize = "16m",
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.heapgrowthlimit = "256m",
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.heapsize = "512m",
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.heapminfree = "8m",
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.heapmaxfree = "32m",
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.heaptargetutilization = "0.5",
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};
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static const dalvik_heap_info dalvik_heap_info_4096 = {
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.heapstartsize = "8m",
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.heapgrowthlimit = "256m",
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.heapsize = "512m",
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.heapminfree = "8m",
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.heapmaxfree = "16m",
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.heaptargetutilization = "0.6",
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};
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static const dalvik_heap_info dalvik_heap_info_2048 = {
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.heapstartsize = "8m",
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.heapgrowthlimit = "192m",
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.heapsize = "512m",
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.heapminfree = "512k",
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.heapmaxfree = "8m",
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.heaptargetutilization = "0.75",
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};
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void set_dalvik_heap() {
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struct sysinfo sys;
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const dalvik_heap_info* dhi;
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sysinfo(&sys);
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if (sys.totalram > GB(5)) {
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dhi = &dalvik_heap_info_6144;
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} else if (sys.totalram > GB(3)) {
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dhi = &dalvik_heap_info_4096;
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} else {
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dhi = &dalvik_heap_info_2048;
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}
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property_override(kHeapStartSizeProp, dhi->heapstartsize);
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property_override(kHeapGrowthLimitProp, dhi->heapgrowthlimit);
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property_override(kHeapSizeProp, dhi->heapsize);
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property_override(kHeapMinFreeProp, dhi->heapminfree);
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property_override(kHeapMaxFreeProp, dhi->heapmaxfree);
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property_override(kHeapTargetUtilizationProp, dhi->heaptargetutilization);
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}
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