mirror of
https://github.com/NLnetLabs/unbound.git
synced 2024-09-21 14:47:09 +00:00
78 lines
2.7 KiB
C
78 lines
2.7 KiB
C
/*
|
|
* daemon/stats.h - collect runtime performance indicators.
|
|
*
|
|
* Copyright (c) 2007, NLnet Labs. All rights reserved.
|
|
*
|
|
* This software is open source.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* Neither the name of the NLNET LABS nor the names of its contributors may
|
|
* be used to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
*
|
|
* This file describes the data structure used to collect runtime performance
|
|
* numbers. These 'statistics' may be of interest to the operator.
|
|
*/
|
|
|
|
#ifndef DAEMON_STATS_H
|
|
#define DAEMON_STATS_H
|
|
struct worker;
|
|
|
|
/** per worker statistics */
|
|
struct server_stats {
|
|
/** number of queries from clients received. */
|
|
size_t num_queries;
|
|
/** number of queries that had a cache-miss. */
|
|
size_t num_queries_missed_cache;
|
|
|
|
/**
|
|
* Sum of the querylistsize of the worker for
|
|
* every query that missed cache. To calculate average.
|
|
*/
|
|
size_t sum_query_list_size;
|
|
/** max value of query list size reached. */
|
|
size_t max_query_list_size;
|
|
/** number of times that the query_list_size was insufficient */
|
|
size_t num_query_list_exceeded;
|
|
};
|
|
|
|
/**
|
|
* Initialize server stats to 0.
|
|
* @param stats: what to init (this is alloced by the caller).
|
|
*/
|
|
void server_stats_init(struct server_stats* stats);
|
|
|
|
/** add query if it missed the cache */
|
|
void server_stats_querymiss(struct server_stats* stats, struct worker* worker);
|
|
|
|
/** display the stats to the log */
|
|
void server_stats_log(struct server_stats* stats, int threadnum);
|
|
|
|
#endif /* DAEMON_STATS_H */
|