247 lines
7.9 KiB
C
247 lines
7.9 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 COPYRIGHT
|
||
|
|
* HOLDER 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
|
||
|
|
#include "util/timehist.h"
|
||
|
|
struct worker;
|
||
|
|
struct config_file;
|
||
|
|
struct comm_point;
|
||
|
|
struct comm_reply;
|
||
|
|
struct edns_data;
|
||
|
|
struct sldns_buffer;
|
||
|
|
|
||
|
|
/** number of qtype that is stored for in array */
|
||
|
|
#define STATS_QTYPE_NUM 256
|
||
|
|
/** number of qclass that is stored for in array */
|
||
|
|
#define STATS_QCLASS_NUM 256
|
||
|
|
/** number of rcodes in stats */
|
||
|
|
#define STATS_RCODE_NUM 16
|
||
|
|
/** number of opcodes in stats */
|
||
|
|
#define STATS_OPCODE_NUM 16
|
||
|
|
|
||
|
|
/** 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;
|
||
|
|
/** number of prefetch queries - cachehits with prefetch */
|
||
|
|
size_t num_queries_prefetch;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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;
|
||
|
|
|
||
|
|
/** Extended stats below (bool) */
|
||
|
|
int extended;
|
||
|
|
|
||
|
|
/** qtype stats */
|
||
|
|
size_t qtype[STATS_QTYPE_NUM];
|
||
|
|
/** bigger qtype values not in array */
|
||
|
|
size_t qtype_big;
|
||
|
|
/** qclass stats */
|
||
|
|
size_t qclass[STATS_QCLASS_NUM];
|
||
|
|
/** bigger qclass values not in array */
|
||
|
|
size_t qclass_big;
|
||
|
|
/** query opcodes */
|
||
|
|
size_t qopcode[STATS_OPCODE_NUM];
|
||
|
|
/** number of queries over TCP */
|
||
|
|
size_t qtcp;
|
||
|
|
/** number of outgoing queries over TCP */
|
||
|
|
size_t qtcp_outgoing;
|
||
|
|
/** number of queries over IPv6 */
|
||
|
|
size_t qipv6;
|
||
|
|
/** number of queries with QR bit */
|
||
|
|
size_t qbit_QR;
|
||
|
|
/** number of queries with AA bit */
|
||
|
|
size_t qbit_AA;
|
||
|
|
/** number of queries with TC bit */
|
||
|
|
size_t qbit_TC;
|
||
|
|
/** number of queries with RD bit */
|
||
|
|
size_t qbit_RD;
|
||
|
|
/** number of queries with RA bit */
|
||
|
|
size_t qbit_RA;
|
||
|
|
/** number of queries with Z bit */
|
||
|
|
size_t qbit_Z;
|
||
|
|
/** number of queries with AD bit */
|
||
|
|
size_t qbit_AD;
|
||
|
|
/** number of queries with CD bit */
|
||
|
|
size_t qbit_CD;
|
||
|
|
/** number of queries with EDNS OPT record */
|
||
|
|
size_t qEDNS;
|
||
|
|
/** number of queries with EDNS with DO flag */
|
||
|
|
size_t qEDNS_DO;
|
||
|
|
/** answer rcodes */
|
||
|
|
size_t ans_rcode[STATS_RCODE_NUM];
|
||
|
|
/** answers with pseudo rcode 'nodata' */
|
||
|
|
size_t ans_rcode_nodata;
|
||
|
|
/** answers that were secure (AD) */
|
||
|
|
size_t ans_secure;
|
||
|
|
/** answers that were bogus (withheld as SERVFAIL) */
|
||
|
|
size_t ans_bogus;
|
||
|
|
/** rrsets marked bogus by validator */
|
||
|
|
size_t rrset_bogus;
|
||
|
|
/** unwanted traffic received on server-facing ports */
|
||
|
|
size_t unwanted_replies;
|
||
|
|
/** unwanted traffic received on client-facing ports */
|
||
|
|
size_t unwanted_queries;
|
||
|
|
|
||
|
|
/** histogram data exported to array
|
||
|
|
* if the array is the same size, no data is lost, and
|
||
|
|
* if all histograms are same size (is so by default) then
|
||
|
|
* adding up works well. */
|
||
|
|
size_t hist[NUM_BUCKETS_HIST];
|
||
|
|
|
||
|
|
/** number of message cache entries */
|
||
|
|
size_t msg_cache_count;
|
||
|
|
/** number of rrset cache entries */
|
||
|
|
size_t rrset_cache_count;
|
||
|
|
/** number of infra cache entries */
|
||
|
|
size_t infra_cache_count;
|
||
|
|
/** number of key cache entries */
|
||
|
|
size_t key_cache_count;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Statistics to send over the control pipe when asked
|
||
|
|
* This struct is made to be memcpied, sent in binary.
|
||
|
|
*/
|
||
|
|
struct stats_info {
|
||
|
|
/** the thread stats */
|
||
|
|
struct server_stats svr;
|
||
|
|
|
||
|
|
/** mesh stats: current number of states */
|
||
|
|
size_t mesh_num_states;
|
||
|
|
/** mesh stats: current number of reply (user) states */
|
||
|
|
size_t mesh_num_reply_states;
|
||
|
|
/** mesh stats: number of reply states overwritten with a new one */
|
||
|
|
size_t mesh_jostled;
|
||
|
|
/** mesh stats: number of incoming queries dropped */
|
||
|
|
size_t mesh_dropped;
|
||
|
|
/** mesh stats: replies sent */
|
||
|
|
size_t mesh_replies_sent;
|
||
|
|
/** mesh stats: sum of waiting times for the replies */
|
||
|
|
struct timeval mesh_replies_sum_wait;
|
||
|
|
/** mesh stats: median of waiting times for replies (in sec) */
|
||
|
|
double mesh_time_median;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Initialize server stats to 0.
|
||
|
|
* @param stats: what to init (this is alloced by the caller).
|
||
|
|
* @param cfg: with extended statistics option.
|
||
|
|
*/
|
||
|
|
void server_stats_init(struct server_stats* stats, struct config_file* cfg);
|
||
|
|
|
||
|
|
/** add query if it missed the cache */
|
||
|
|
void server_stats_querymiss(struct server_stats* stats, struct worker* worker);
|
||
|
|
|
||
|
|
/** add query if was cached and also resulted in a prefetch */
|
||
|
|
void server_stats_prefetch(struct server_stats* stats, struct worker* worker);
|
||
|
|
|
||
|
|
/** display the stats to the log */
|
||
|
|
void server_stats_log(struct server_stats* stats, struct worker* worker,
|
||
|
|
int threadnum);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Obtain the stats info for a given thread. Uses pipe to communicate.
|
||
|
|
* @param worker: the worker that is executing (the first worker).
|
||
|
|
* @param who: on who to get the statistics info.
|
||
|
|
* @param s: the stats block to fill in.
|
||
|
|
* @param reset: if stats can be reset.
|
||
|
|
*/
|
||
|
|
void server_stats_obtain(struct worker* worker, struct worker* who,
|
||
|
|
struct stats_info* s, int reset);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Compile stats into structure for this thread worker.
|
||
|
|
* Also clears the statistics counters (if that is set by config file).
|
||
|
|
* @param worker: the worker to compile stats for, also the executing worker.
|
||
|
|
* @param s: stats block.
|
||
|
|
* @param reset: if true, depending on config stats are reset.
|
||
|
|
* if false, statistics are not reset.
|
||
|
|
*/
|
||
|
|
void server_stats_compile(struct worker* worker, struct stats_info* s,
|
||
|
|
int reset);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Send stats over comm tube in reply to query cmd
|
||
|
|
* @param worker: this worker.
|
||
|
|
* @param reset: if true, depending on config stats are reset.
|
||
|
|
* if false, statistics are not reset.
|
||
|
|
*/
|
||
|
|
void server_stats_reply(struct worker* worker, int reset);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Addup stat blocks.
|
||
|
|
* @param total: sum of the two entries.
|
||
|
|
* @param a: to add to it.
|
||
|
|
*/
|
||
|
|
void server_stats_add(struct stats_info* total, struct stats_info* a);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add stats for this query
|
||
|
|
* @param stats: the stats
|
||
|
|
* @param c: commpoint with type and buffer.
|
||
|
|
* @param qtype: query type
|
||
|
|
* @param qclass: query class
|
||
|
|
* @param edns: edns record
|
||
|
|
* @param repinfo: reply info with remote address
|
||
|
|
*/
|
||
|
|
void server_stats_insquery(struct server_stats* stats, struct comm_point* c,
|
||
|
|
uint16_t qtype, uint16_t qclass, struct edns_data* edns,
|
||
|
|
struct comm_reply* repinfo);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add rcode for this query.
|
||
|
|
* @param stats: the stats
|
||
|
|
* @param buf: buffer with rcode. If buffer is length0: not counted.
|
||
|
|
*/
|
||
|
|
void server_stats_insrcode(struct server_stats* stats, struct sldns_buffer* buf);
|
||
|
|
|
||
|
|
#endif /* DAEMON_STATS_H */
|