rocksdb/util/iostats_context_imp.h
Yueh-Hsuan Chiang 90a6aca48e Finer report I/O stats about Flush and Compaction.
Summary:
This diff allows the I/O stats about Flush and Compaction to be reported
in a more accurate way.  Instead of measuring the size of a file, it
measure I/O cost in per read / write basis.

Test Plan: make all check

Reviewers: sdong, igor, ljin

Reviewed By: ljin

Subscribers: leveldb

Differential Revision: https://reviews.facebook.net/D19383
2014-07-03 16:28:03 -07:00

33 lines
1.1 KiB
C

// Copyright (c) 2014, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
#pragma once
#include "rocksdb/iostats_context.h"
// increment a specific counter by the specified value
#define IOSTATS_ADD(metric, value) \
(iostats_context.metric += value)
// Increase metric value only when it is positive
#define IOSTATS_ADD_IF_POSITIVE(metric, value) \
if (value > 0) { IOSTATS_ADD(metric, value); }
// reset a specific counter to zero
#define IOSTATS_RESET(metric) \
(iostats_context.metric = 0)
// reset all counters to zero
#define IOSTATS_RESET_ALL() \
(iostats_context.Reset())
#define IOSTATS_SET_THREAD_POOL_ID(value) \
(iostats_context.thread_pool_id = value)
#define IOSTATS_THREAD_POOL_ID() \
(iostats_context.thread_pool_id)
#define IOSTATS(metric) \
(iostats_context.metric)