74 lines
2.6 KiB
Java
74 lines
2.6 KiB
Java
/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.internal.os;
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import android.annotation.Nullable;
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/** JNI wrapper around libmeminfo for kernel memory allocation stats (dmabufs, gpu driver). */
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public final class KernelAllocationStats {
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private KernelAllocationStats() {}
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/** Process dma-buf stats. */
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public static final class ProcessDmabuf {
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public final int uid;
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public final String processName;
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public final int oomScore;
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/** Size of buffers retained by the process. */
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public final int retainedSizeKb;
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/** Number of buffers retained by the process. */
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public final int retainedBuffersCount;
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/** Size of buffers shared with Surface Flinger. */
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public final int surfaceFlingerSizeKb;
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/** Count of buffers shared with Surface Flinger. */
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public final int surfaceFlingerCount;
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ProcessDmabuf(int uid, String processName, int oomScore, int retainedSizeKb,
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int retainedBuffersCount, int surfaceFlingerSizeKb,
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int surfaceFlingerCount) {
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this.uid = uid;
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this.processName = processName;
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this.oomScore = oomScore;
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this.retainedSizeKb = retainedSizeKb;
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this.retainedBuffersCount = retainedBuffersCount;
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this.surfaceFlingerSizeKb = surfaceFlingerSizeKb;
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this.surfaceFlingerCount = surfaceFlingerCount;
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}
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}
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/**
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* Return stats for DMA-BUFs retained by process pid or null if the DMA-BUF
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* stats could not be read.
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*/
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@Nullable
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public static native ProcessDmabuf[] getDmabufAllocations();
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/** Pid to gpu memory size. */
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public static final class ProcessGpuMem {
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public final int pid;
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public final int gpuMemoryKb;
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ProcessGpuMem(int pid, int gpuMemoryKb) {
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this.pid = pid;
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this.gpuMemoryKb = gpuMemoryKb;
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}
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}
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/** Return list of pid to gpu memory size. */
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public static native ProcessGpuMem[] getGpuAllocations();
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}
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