You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
134 lines
6.1 KiB
134 lines
6.1 KiB
/*
|
|
* Copyright (C) 2018 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <array>
|
|
#include <functional>
|
|
#include <initializer_list>
|
|
#include <map>
|
|
#include <string>
|
|
#include <string_view>
|
|
|
|
namespace android {
|
|
namespace meminfo {
|
|
|
|
static constexpr const char kDmabufHeapRoot[] = "/dev/dma_heap";
|
|
|
|
class SysMemInfo final {
|
|
// System or Global memory accounting
|
|
public:
|
|
static constexpr const char kMemTotal[] = "MemTotal:";
|
|
static constexpr const char kMemFree[] = "MemFree:";
|
|
static constexpr const char kMemBuffers[] = "Buffers:";
|
|
static constexpr const char kMemCached[] = "Cached:";
|
|
static constexpr const char kMemShmem[] = "Shmem:";
|
|
static constexpr const char kMemSlab[] = "Slab:";
|
|
static constexpr const char kMemSReclaim[] = "SReclaimable:";
|
|
static constexpr const char kMemSUnreclaim[] = "SUnreclaim:";
|
|
static constexpr const char kMemSwapTotal[] = "SwapTotal:";
|
|
static constexpr const char kMemSwapFree[] = "SwapFree:";
|
|
static constexpr const char kMemMapped[] = "Mapped:";
|
|
static constexpr const char kMemVmallocUsed[] = "VmallocUsed:";
|
|
static constexpr const char kMemPageTables[] = "PageTables:";
|
|
static constexpr const char kMemKernelStack[] = "KernelStack:";
|
|
static constexpr const char kMemKReclaimable[] = "KReclaimable:";
|
|
static constexpr const char kMemActive[] = "Active:";
|
|
static constexpr const char kMemInactive[] = "Inactive:";
|
|
static constexpr const char kMemUnevictable[] = "Unevictable:";
|
|
|
|
|
|
static constexpr std::initializer_list<std::string_view> kDefaultSysMemInfoTags = {
|
|
SysMemInfo::kMemTotal, SysMemInfo::kMemFree, SysMemInfo::kMemBuffers,
|
|
SysMemInfo::kMemCached, SysMemInfo::kMemShmem, SysMemInfo::kMemSlab,
|
|
SysMemInfo::kMemSReclaim, SysMemInfo::kMemSUnreclaim, SysMemInfo::kMemSwapTotal,
|
|
SysMemInfo::kMemSwapFree, SysMemInfo::kMemMapped, SysMemInfo::kMemVmallocUsed,
|
|
SysMemInfo::kMemPageTables, SysMemInfo::kMemKernelStack, SysMemInfo::kMemKReclaimable,
|
|
SysMemInfo::kMemActive, SysMemInfo::kMemInactive, SysMemInfo::kMemUnevictable,
|
|
};
|
|
|
|
SysMemInfo() = default;
|
|
|
|
// Parse /proc/meminfo and read values that are needed
|
|
bool ReadMemInfo(const char* path = "/proc/meminfo");
|
|
bool ReadMemInfo(size_t ntags, const std::string_view* tags, uint64_t* out,
|
|
const char* path = "/proc/meminfo");
|
|
bool ReadMemInfo(std::vector<uint64_t>* out, const char* path = "/proc/meminfo");
|
|
|
|
// Parse /proc/vmallocinfo and return total physical memory mapped
|
|
// in vmalloc area by the kernel.
|
|
// Note that this deliberately ignores binder buffers. They are _always_
|
|
// mapped in a process and are counted for in each process.
|
|
uint64_t ReadVmallocInfo();
|
|
|
|
// getters
|
|
uint64_t mem_total_kb() { return mem_in_kb_[kMemTotal]; }
|
|
uint64_t mem_free_kb() { return mem_in_kb_[kMemFree]; }
|
|
uint64_t mem_buffers_kb() { return mem_in_kb_[kMemBuffers]; }
|
|
uint64_t mem_cached_kb() { return mem_in_kb_[kMemCached]; }
|
|
uint64_t mem_shmem_kb() { return mem_in_kb_[kMemShmem]; }
|
|
uint64_t mem_slab_kb() { return mem_in_kb_[kMemSlab]; }
|
|
uint64_t mem_slab_reclaimable_kb() { return mem_in_kb_[kMemSReclaim]; }
|
|
uint64_t mem_slab_unreclaimable_kb() { return mem_in_kb_[kMemSUnreclaim]; }
|
|
uint64_t mem_swap_kb() { return mem_in_kb_[kMemSwapTotal]; }
|
|
uint64_t mem_swap_free_kb() { return mem_in_kb_[kMemSwapFree]; }
|
|
uint64_t mem_mapped_kb() { return mem_in_kb_[kMemMapped]; }
|
|
uint64_t mem_vmalloc_used_kb() { return mem_in_kb_[kMemVmallocUsed]; }
|
|
uint64_t mem_page_tables_kb() { return mem_in_kb_[kMemPageTables]; }
|
|
uint64_t mem_kernel_stack_kb() { return mem_in_kb_[kMemKernelStack]; }
|
|
uint64_t mem_kreclaimable_kb() { return mem_in_kb_[kMemKReclaimable]; }
|
|
uint64_t mem_active_kb() { return mem_in_kb_[kMemActive]; }
|
|
uint64_t mem_inactive_kb() { return mem_in_kb_[kMemInactive]; }
|
|
uint64_t mem_unevictable_kb() { return mem_in_kb_[kMemUnevictable]; }
|
|
uint64_t mem_zram_kb(const char* zram_dev = nullptr);
|
|
|
|
private:
|
|
std::map<std::string_view, uint64_t> mem_in_kb_;
|
|
bool MemZramDevice(const char* zram_dev, uint64_t* mem_zram_dev);
|
|
bool ReadMemInfo(const char* path, size_t ntags, const std::string_view* tags,
|
|
std::function<void(std::string_view, uint64_t)> store_val);
|
|
};
|
|
|
|
// Parse /proc/vmallocinfo and return total physical memory mapped
|
|
// in vmalloc area by the kernel. Note that this deliberately ignores binder buffers. They are
|
|
// _always_ mapped in a process and are counted for in each process.
|
|
uint64_t ReadVmallocInfo(const char* path = "/proc/vmallocinfo");
|
|
|
|
// Read ION heaps allocation size in kb
|
|
bool ReadIonHeapsSizeKb(
|
|
uint64_t* size, const std::string& path = "/sys/kernel/ion/total_heaps_kb");
|
|
|
|
// Read ION pools allocation size in kb
|
|
bool ReadIonPoolsSizeKb(
|
|
uint64_t* size, const std::string& path = "/sys/kernel/ion/total_pools_kb");
|
|
|
|
// Read DMA-BUF heap pools allocation size in kb
|
|
bool ReadDmabufHeapPoolsSizeKb(uint64_t* size,
|
|
const std::string& path = "/sys/kernel/dma_heap/total_pools_kb");
|
|
|
|
// Read GPU total usage size in kb
|
|
bool ReadGpuTotalUsageKb(uint64_t* size);
|
|
|
|
// Read total size of DMA-BUFs exported from the DMA-BUF heap framework in kb
|
|
bool ReadDmabufHeapTotalExportedKb(
|
|
uint64_t* size, const std::string& dma_heap_root = kDmabufHeapRoot,
|
|
const std::string& dma_buf_sysfs_path = "/sys/kernel/dmabuf/buffers");
|
|
|
|
} // namespace meminfo
|
|
} // namespace android
|