mirror of
https://github.com/facebook/rocksdb.git
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3d1a924ff3
Summary: We have addded new stats and perf_context for measuring the merge and filter operation time consumption. We have bounded all the merge operations within the GUARD statment and collected the total time for these operations in the DB. Test Plan: WIP Reviewers: rven, yhchiang, kradhakrishnan, igor, sdong Reviewed By: sdong Subscribers: dhruba Differential Revision: https://reviews.facebook.net/D34377
88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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#include <sstream>
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#include "util/perf_context_imp.h"
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namespace rocksdb {
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#if defined(NPERF_CONTEXT) || defined(IOS_CROSS_COMPILE)
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PerfLevel perf_level = kEnableCount;
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// This is a dummy variable since some place references it
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PerfContext perf_context;
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#else
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__thread PerfLevel perf_level = kEnableCount;
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__thread PerfContext perf_context;
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#endif
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void SetPerfLevel(PerfLevel level) {
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perf_level = level;
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}
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PerfLevel GetPerfLevel() {
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return perf_level;
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}
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void PerfContext::Reset() {
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#if !defined(NPERF_CONTEXT) && !defined(IOS_CROSS_COMPILE)
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user_key_comparison_count = 0;
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block_cache_hit_count = 0;
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block_read_count = 0;
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block_read_byte = 0;
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block_read_time = 0;
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block_checksum_time = 0;
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block_decompress_time = 0;
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internal_key_skipped_count = 0;
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internal_delete_skipped_count = 0;
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write_wal_time = 0;
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get_snapshot_time = 0;
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get_from_memtable_time = 0;
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get_from_memtable_count = 0;
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get_post_process_time = 0;
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get_from_output_files_time = 0;
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seek_on_memtable_time = 0;
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seek_on_memtable_count = 0;
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seek_child_seek_time = 0;
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seek_child_seek_count = 0;
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seek_min_heap_time = 0;
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seek_internal_seek_time = 0;
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find_next_user_entry_time = 0;
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write_pre_and_post_process_time = 0;
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write_memtable_time = 0;
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db_mutex_lock_nanos = 0;
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db_condition_wait_nanos = 0;
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merge_operator_time_nanos = 0;
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#endif
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}
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#define OUTPUT(counter) #counter << " = " << counter << ", "
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std::string PerfContext::ToString() const {
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#if defined(NPERF_CONTEXT) || defined(IOS_CROSS_COMPILE)
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return "";
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#else
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std::ostringstream ss;
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ss << OUTPUT(user_key_comparison_count) << OUTPUT(block_cache_hit_count)
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<< OUTPUT(block_read_count) << OUTPUT(block_read_byte)
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<< OUTPUT(block_read_time) << OUTPUT(block_checksum_time)
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<< OUTPUT(block_decompress_time) << OUTPUT(internal_key_skipped_count)
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<< OUTPUT(internal_delete_skipped_count) << OUTPUT(write_wal_time)
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<< OUTPUT(get_snapshot_time) << OUTPUT(get_from_memtable_time)
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<< OUTPUT(get_from_memtable_count) << OUTPUT(get_post_process_time)
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<< OUTPUT(get_from_output_files_time) << OUTPUT(seek_on_memtable_time)
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<< OUTPUT(seek_on_memtable_count) << OUTPUT(seek_child_seek_time)
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<< OUTPUT(seek_child_seek_count) << OUTPUT(seek_min_heap_time)
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<< OUTPUT(seek_internal_seek_time) << OUTPUT(find_next_user_entry_time)
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<< OUTPUT(write_pre_and_post_process_time) << OUTPUT(write_memtable_time)
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<< OUTPUT(db_mutex_lock_nanos) << OUTPUT(db_condition_wait_nanos)
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<< OUTPUT(merge_operator_time_nanos);
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return ss.str();
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#endif
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}
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}
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