67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
/*
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* SPDX-FileCopyrightText: The LineageOS Project
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <sys/sysinfo.h>
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#include <libinit_utils.h>
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#include <libinit_dalvik_heap.h>
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#define HEAPSTARTSIZE_PROP "dalvik.vm.heapstartsize"
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#define HEAPGROWTHLIMIT_PROP "dalvik.vm.heapgrowthlimit"
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#define HEAPSIZE_PROP "dalvik.vm.heapsize"
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#define HEAPMINFREE_PROP "dalvik.vm.heapminfree"
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#define HEAPMAXFREE_PROP "dalvik.vm.heapmaxfree"
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#define HEAPTARGETUTILIZATION_PROP "dalvik.vm.heaptargetutilization"
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#define GB(b) (b * 1024ull * 1024 * 1024)
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static const dalvik_heap_info_t 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_t 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_t 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_t *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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property_override(HEAPSTARTSIZE_PROP, dhi->heapstartsize);
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property_override(HEAPGROWTHLIMIT_PROP, dhi->heapgrowthlimit);
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property_override(HEAPSIZE_PROP, dhi->heapsize);
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property_override(HEAPTARGETUTILIZATION_PROP, dhi->heaptargetutilization);
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property_override(HEAPMINFREE_PROP, dhi->heapminfree);
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property_override(HEAPMAXFREE_PROP, dhi->heapmaxfree);
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}
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