| /* |
| * Copyright (C) 2017, Google Inc. and others |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0 which is available at |
| * https://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| package org.eclipse.jgit.internal.storage.dfs; |
| |
| import org.eclipse.jgit.lib.AnyObjectId; |
| |
| /** |
| * IO statistics for a {@link org.eclipse.jgit.internal.storage.dfs.DfsReader}. |
| */ |
| public class DfsReaderIoStats { |
| /** POJO to accumulate IO statistics. */ |
| public static class Accumulator { |
| |
| /** Number of times the reader explicitly called scanPacks. */ |
| long scanPacks; |
| |
| /** Total number of cache hits for pack indexes. */ |
| long idxCacheHit; |
| |
| /** Total number of cache hits for reverse indexes. */ |
| long ridxCacheHit; |
| |
| /** Total number of cache hits for bitmap indexes. */ |
| long bitmapCacheHit; |
| |
| /** Total number of cache hits for commit graphs. */ |
| long commitGraphCacheHit; |
| |
| /** Total number of cache hits for object size indexes. */ |
| long objectSizeIndexCacheHit; |
| |
| /** Total number of complete pack indexes read into memory. */ |
| long readIdx; |
| |
| /** Total number of complete bitmap indexes read into memory. */ |
| long readBitmap; |
| |
| /** Total number of reverse indexes added into memory. */ |
| long readReverseIdx; |
| |
| /** Total number of complete commit graphs read into memory. */ |
| long readCommitGraph; |
| |
| /** Total number of object size indexes added into memory. */ |
| long readObjectSizeIndex; |
| |
| /** Total number of bytes read from pack indexes. */ |
| long readIdxBytes; |
| |
| /** Total number of bytes read from commit graphs. */ |
| long readCommitGraphBytes; |
| |
| /** Total numer of bytes read from object size index */ |
| long readObjectSizeIndexBytes; |
| |
| /** Total microseconds spent reading pack indexes. */ |
| long readIdxMicros; |
| |
| /** Total microseconds spent creating reverse indexes. */ |
| long readReverseIdxMicros; |
| |
| /** Total microseconds spent creating commit graphs. */ |
| long readCommitGraphMicros; |
| |
| /** Total microseconds spent creating object size indexes */ |
| long readObjectSizeIndexMicros; |
| |
| /** Total number of bytes read from bitmap indexes. */ |
| long readBitmapIdxBytes; |
| |
| /** Total microseconds spent reading bitmap indexes. */ |
| long readBitmapIdxMicros; |
| |
| /** Total number of block cache hits. */ |
| long blockCacheHit; |
| |
| /** |
| * Total number of discrete blocks actually read from pack file(s), that is, |
| * block cache misses. |
| */ |
| long readBlock; |
| |
| /** |
| * Total number of compressed bytes read during cache misses, as block sized |
| * units. |
| */ |
| long readBlockBytes; |
| |
| /** Total microseconds spent reading {@link #readBlock} blocks. */ |
| long readBlockMicros; |
| |
| /** Total number of bytes decompressed. */ |
| long inflatedBytes; |
| |
| /** Total microseconds spent inflating compressed bytes. */ |
| long inflationMicros; |
| |
| /** Count of queries for the size of an object via #isNotLargerThan */ |
| long isNotLargerThanCallCount; |
| |
| /** Object was below threshold in the object size index */ |
| long objectSizeIndexMiss; |
| |
| /** Object size found in the object size index */ |
| long objectSizeIndexHit; |
| |
| Accumulator() { |
| } |
| } |
| |
| private final Accumulator stats; |
| |
| DfsReaderIoStats(Accumulator stats) { |
| this.stats = stats; |
| } |
| |
| /** |
| * Get number of times the reader explicitly called scanPacks. |
| * |
| * @return number of times the reader explicitly called scanPacks. |
| */ |
| public long getScanPacks() { |
| return stats.scanPacks; |
| } |
| |
| /** |
| * Get total number of pack index cache hits. |
| * |
| * @return total number of pack index cache hits. |
| */ |
| public long getPackIndexCacheHits() { |
| return stats.idxCacheHit; |
| } |
| |
| /** |
| * Get total number of reverse index cache hits. |
| * |
| * @return total number of reverse index cache hits. |
| */ |
| public long getReverseIndexCacheHits() { |
| return stats.ridxCacheHit; |
| } |
| |
| /** |
| * Get total number of bitmap index cache hits. |
| * |
| * @return total number of bitmap index cache hits. |
| */ |
| public long getBitmapIndexCacheHits() { |
| return stats.bitmapCacheHit; |
| } |
| |
| /** |
| * Get total number of commit graph cache hits. |
| * |
| * @return total number of commit graph cache hits. |
| */ |
| public long getCommitGraphCacheHits() { |
| return stats.commitGraphCacheHit; |
| } |
| |
| /** |
| * Get total number of object size index cache hits. |
| * |
| * @return total number of object size index cache hits. |
| */ |
| public long getObjectSizeIndexCacheHits() { |
| return stats.objectSizeIndexCacheHit; |
| } |
| |
| /** |
| * Get total number of complete pack indexes read into memory. |
| * |
| * @return total number of complete pack indexes read into memory. |
| */ |
| public long getReadPackIndexCount() { |
| return stats.readIdx; |
| } |
| |
| /** |
| * Get total number of times the reverse index was computed. |
| * |
| * @return total number of reverse index was computed. |
| */ |
| public long getReadReverseIndexCount() { |
| return stats.readReverseIdx; |
| } |
| |
| /** |
| * Get total number of times the commit graph read into memory. |
| * |
| * @return total number of commit graph read into memory. |
| */ |
| public long getReadCommitGraphCount() { |
| return stats.readCommitGraph; |
| } |
| |
| /** |
| * Get total number of complete bitmap indexes read into memory. |
| * |
| * @return total number of complete bitmap indexes read into memory. |
| */ |
| public long getReadBitmapIndexCount() { |
| return stats.readBitmap; |
| } |
| |
| /** |
| * Get total number of complete object size indexes read into memory. |
| * |
| * @return total number of complete object size indexes read into memory. |
| */ |
| public long getReadObjectSizeIndexCount() { |
| return stats.readObjectSizeIndex; |
| } |
| |
| /** |
| * Get total number of bytes read from pack indexes. |
| * |
| * @return total number of bytes read from pack indexes. |
| */ |
| public long getReadIndexBytes() { |
| return stats.readIdxBytes; |
| } |
| |
| /** |
| * Get total number of bytes read from commit graphs. |
| * |
| * @return total number of bytes read from commit graphs. |
| */ |
| public long getCommitGraphBytes() { |
| return stats.readCommitGraphBytes; |
| } |
| |
| /** |
| * Get total microseconds spent reading pack indexes. |
| * |
| * @return total microseconds spent reading pack indexes. |
| */ |
| public long getReadIndexMicros() { |
| return stats.readIdxMicros; |
| } |
| |
| /** |
| * Get total microseconds spent creating reverse indexes. |
| * |
| * @return total microseconds spent creating reverse indexes. |
| */ |
| public long getReadReverseIndexMicros() { |
| return stats.readReverseIdxMicros; |
| } |
| |
| /** |
| * Get total microseconds spent reading commit graphs. |
| * |
| * @return total microseconds spent reading commit graphs. |
| */ |
| public long getReadCommitGraphMicros() { |
| return stats.readCommitGraphMicros; |
| } |
| |
| /** |
| * Get total number of bytes read from bitmap indexes. |
| * |
| * @return total number of bytes read from bitmap indexes. |
| */ |
| public long getReadBitmapIndexBytes() { |
| return stats.readBitmapIdxBytes; |
| } |
| |
| /** |
| * Get total microseconds spent reading bitmap indexes. |
| * |
| * @return total microseconds spent reading bitmap indexes. |
| */ |
| public long getReadBitmapIndexMicros() { |
| return stats.readBitmapIdxMicros; |
| } |
| |
| /** |
| * Get total number of block cache hits. |
| * |
| * @return total number of block cache hits. |
| */ |
| public long getBlockCacheHits() { |
| return stats.blockCacheHit; |
| } |
| |
| /** |
| * Get total number of discrete blocks actually read from pack file(s), that |
| * is, block cache misses. |
| * |
| * @return total number of discrete blocks read from pack file(s). |
| */ |
| public long getReadBlocksCount() { |
| return stats.readBlock; |
| } |
| |
| /** |
| * Get total number of compressed bytes read during cache misses, as block |
| * sized units. |
| * |
| * @return total number of compressed bytes read as block sized units. |
| */ |
| public long getReadBlocksBytes() { |
| return stats.readBlockBytes; |
| } |
| |
| /** |
| * Get total microseconds spent reading blocks during cache misses. |
| * |
| * @return total microseconds spent reading blocks. |
| */ |
| public long getReadBlocksMicros() { |
| return stats.readBlockMicros; |
| } |
| |
| /** |
| * Get total number of bytes decompressed. |
| * |
| * @return total number of bytes decompressed. |
| */ |
| public long getInflatedBytes() { |
| return stats.inflatedBytes; |
| } |
| |
| /** |
| * Get total microseconds spent inflating compressed bytes. |
| * |
| * @return total microseconds inflating compressed bytes. |
| */ |
| public long getInflationMicros() { |
| return stats.inflationMicros; |
| } |
| |
| /** |
| * Get count of invocations to |
| * {@link DfsReader#isNotLargerThan(AnyObjectId, int, long)} |
| * <p> |
| * Each call could use the object-size index or not. |
| * |
| * @return how many times the size of an object was checked with |
| * {@link DfsReader#isNotLargerThan(AnyObjectId, int, long)} |
| */ |
| public long getIsNotLargerThanCallCount() { |
| return stats.isNotLargerThanCallCount; |
| } |
| |
| /** |
| * Get number of times the size of a blob was found in the object size |
| * index. |
| * <p> |
| * This counts only queries for blobs on packs with object size index. |
| * |
| * @return count of object size index hits |
| */ |
| public long getObjectSizeIndexHits() { |
| return stats.objectSizeIndexHit; |
| } |
| |
| /** |
| * Get number of times the size of an object was not found in the object |
| * size index. This usually means it was below the threshold. |
| * <p> |
| * This counts only queries for blobs on packs with object size index. |
| * |
| * @return count of object size index misses. |
| */ |
| public long getObjectSizeIndexMisses() { |
| return stats.objectSizeIndexMiss; |
| } |
| } |