src/StatCounters.h

   1 /*
   2  * Copyright (C) 1996-2023 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 #ifndef SQUID_SRC_STATCOUNTERS_H
  10 #define SQUID_SRC_STATCOUNTERS_H
  11
  12 #include "base/ByteCounter.h"
  13 #include "comm/Incoming.h"
  14 #include "StatHist.h"
  15
  16 #if USE_CACHE_DIGESTS
  17 /** statistics for cache digests and other hit "predictors" */
  18 class CacheDigestGuessStats
  19 {
  20 public:
  21     int trueHits = 0;
  22     int falseHits = 0;
  23     int trueMisses = 0;
  24     int falseMisses = 0;
  25     int closeHits = 0;     // TODO: temporary. remove it later
  26 };
  27 #endif
  28
  29 /** General collection of process-wide statistics.
  30  *
  31  * \note if you add a field to StatCounters which requires any non-trivial
  32  *  initialization or copy you MUST sync statCountersInitSpecial()
  33  */
  34 class StatCounters
  35 {
  36 public:
  37     StatCounters() : timestamp(current_time) {}
  38
  39     struct {
  40         int clients = 0;
  41         int requests = 0;
  42         int hits = 0;
  43         int mem_hits = 0;
  44         int disk_hits = 0;
  45         int errors = 0;
  46         ByteCounter kbytes_in;
  47         ByteCounter kbytes_out;
  48         ByteCounter hit_kbytes_out;
  49         StatHist missSvcTime;
  50         StatHist nearMissSvcTime;
  51         StatHist nearHitSvcTime;
  52         StatHist hitSvcTime;
  53         StatHist allSvcTime;
  54     } client_http;
  55
  56     struct {
  57
  58         struct {
  59             int requests = 0;
  60             int errors = 0;
  61             ByteCounter kbytes_in;
  62             ByteCounter kbytes_out;
  63         } all, http, ftp, other;
  64     } server;
  65
  66     struct {
  67         int pkts_sent = 0;
  68         int queries_sent = 0;
  69         int replies_sent = 0;
  70         int pkts_recv = 0;
  71         int queries_recv = 0;
  72         int replies_recv = 0;
  73         int hits_sent = 0;
  74         int hits_recv = 0;
  75         int replies_queued = 0;
  76         int replies_dropped = 0;
  77         ByteCounter kbytes_sent;
  78         ByteCounter q_kbytes_sent;
  79         ByteCounter r_kbytes_sent;
  80         ByteCounter kbytes_recv;
  81         ByteCounter q_kbytes_recv;
  82         ByteCounter r_kbytes_recv;
  83         StatHist querySvcTime;
  84         StatHist replySvcTime;
  85         int query_timeouts = 0;
  86         int times_used = 0;
  87     } icp;
  88
  89     struct {
  90         int pkts_sent = 0;
  91         int pkts_recv = 0;
  92     } htcp;
  93
  94     struct {
  95         int requests = 0;
  96     } unlink;
  97
  98     struct {
  99         StatHist svcTime;
 100     } dns;
 101
 102     struct {
 103         int times_used = 0;
 104         ByteCounter kbytes_sent;
 105         ByteCounter kbytes_recv;
 106         ByteCounter memory;
 107         int msgs_sent = 0;
 108         int msgs_recv = 0;
 109 #if USE_CACHE_DIGESTS
 110         CacheDigestGuessStats guess;
 111 #endif
 112         StatHist on_xition_count;
 113     } cd;
 114
 115     struct {
 116         int times_used = 0;
 117     } netdb;
 118     int page_faults = 0;
 119     unsigned long int select_loops = 0;
 120     int select_fds = 0;
 121     double select_time = 0.0;
 122     double cputime = 0.0;
 123
 124     struct timeval timestamp;
 125 #if USE_POLL || USE_SELECT
 126     Comm::Incoming comm_dns;
 127     Comm::Incoming comm_tcp;
 128     Comm::Incoming comm_udp;
 129 #endif
 130     StatHist select_fds_hist;
 131
 132     struct {
 133         struct {
 134             int opens = 0;
 135             int closes = 0;
 136             int reads = 0;
 137             int writes = 0;
 138             int seeks = 0;
 139             int unlinks = 0;
 140         } disk;
 141
 142         struct {
 143             int accepts = 0;
 144             int sockets = 0;
 145             int connects = 0;
 146             int binds = 0;
 147             int closes = 0;
 148             int reads = 0;
 149             int writes = 0;
 150             int recvfroms = 0;
 151             int sendtos = 0;
 152         } sock;
 153         int selects = 0;
 154     } syscalls;
 155     int aborted_requests = 0;
 156
 157     struct {
 158         int files_cleaned = 0;
 159         int outs = 0;
 160         int ins = 0;
 161     } swap;
 162
 163     struct {
 164         uint64_t attempts = 0;
 165         uint64_t refusalsDueToLocking = 0;
 166         uint64_t refusalsDueToZeroSize = 0;
 167         uint64_t refusalsDueToTimeLimit = 0;
 168         uint64_t failures = 0;
 169     } hitValidation;
 170
 171 };
 172
 173 extern StatCounters statCounter;
 174
 175 #endif /* SQUID_SRC_STATCOUNTERS_H */
 176