diff options
Diffstat (limited to 'core/java')
| -rw-r--r-- | core/java/android/os/Debug.java | 10 | ||||
| -rw-r--r-- | core/java/com/android/internal/util/MemInfoReader.java | 49 |
2 files changed, 46 insertions, 13 deletions
diff --git a/core/java/android/os/Debug.java b/core/java/android/os/Debug.java index 18730b65a7dd..084ca30e263c 100644 --- a/core/java/android/os/Debug.java +++ b/core/java/android/os/Debug.java @@ -1093,7 +1093,15 @@ href="{@docRoot}guide/developing/tools/traceview.html">Traceview: A Graphical Lo /** @hide */ public static final int MEMINFO_ZRAM_TOTAL = 8; /** @hide */ - public static final int MEMINFO_COUNT = 9; + public static final int MEMINFO_MAPPED = 9; + /** @hide */ + public static final int MEMINFO_VM_ALLOC_USED = 10; + /** @hide */ + public static final int MEMINFO_PAGE_TABLES = 11; + /** @hide */ + public static final int MEMINFO_KERNEL_STACK = 12; + /** @hide */ + public static final int MEMINFO_COUNT = 13; /** * Retrieves /proc/meminfo. outSizes is filled with fields diff --git a/core/java/com/android/internal/util/MemInfoReader.java b/core/java/com/android/internal/util/MemInfoReader.java index 5f240f73b5be..1dd946494d4d 100644 --- a/core/java/com/android/internal/util/MemInfoReader.java +++ b/core/java/com/android/internal/util/MemInfoReader.java @@ -34,40 +34,65 @@ public final class MemInfoReader { } } + /** + * Total amount of RAM available to the kernel. + */ public long getTotalSize() { return mInfos[Debug.MEMINFO_TOTAL] * 1024; } + /** + * Amount of RAM that is not being used for anything. + */ public long getFreeSize() { return mInfos[Debug.MEMINFO_FREE] * 1024; } + /** + * Amount of RAM that the kernel is being used for caches, not counting caches + * that are mapped in to processes. + */ public long getCachedSize() { - return mInfos[Debug.MEMINFO_CACHED] * 1024; + return getCachedSizeKb() * 1024; } + /** + * Amount of RAM that is in use by the kernel for actual allocations. + */ + public long getKernelUsedSize() { + return getKernelUsedSizeKb() * 1024; + } + + /** + * Total amount of RAM available to the kernel. + */ public long getTotalSizeKb() { return mInfos[Debug.MEMINFO_TOTAL]; } + /** + * Amount of RAM that is not being used for anything. + */ public long getFreeSizeKb() { return mInfos[Debug.MEMINFO_FREE]; } + /** + * Amount of RAM that the kernel is being used for caches, not counting caches + * that are mapped in to processes. + */ public long getCachedSizeKb() { - return mInfos[Debug.MEMINFO_CACHED]; - } - - public long getBuffersSizeKb() { - return mInfos[Debug.MEMINFO_BUFFERS]; - } - - public long getShmemSizeKb() { - return mInfos[Debug.MEMINFO_SHMEM]; + return mInfos[Debug.MEMINFO_BUFFERS] + + mInfos[Debug.MEMINFO_CACHED] - mInfos[Debug.MEMINFO_MAPPED]; } - public long getSlabSizeKb() { - return mInfos[Debug.MEMINFO_SLAB]; + /** + * Amount of RAM that is in use by the kernel for actual allocations. + */ + public long getKernelUsedSizeKb() { + return mInfos[Debug.MEMINFO_SHMEM] + mInfos[Debug.MEMINFO_SLAB] + + mInfos[Debug.MEMINFO_VM_ALLOC_USED] + mInfos[Debug.MEMINFO_PAGE_TABLES] + + mInfos[Debug.MEMINFO_KERNEL_STACK]; } public long getSwapTotalSizeKb() { |