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comparison mod_statistics/stats.lib.lua @ 2209:2733cb8c82a9

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mod_statistics: Add 'statistics_meminfo_interval' option to control the number of seconds between calls to mallinfo(). Between calls, cached results are used.
author Matthew Wild <mwild1@gmail.com>
date Mon, 13 Jun 2016 13:15:07 +0100
parents 3e2c4f424797
children dded110af017
comparison
equal deleted inserted replaced
2208:e654d6e1fb50 2209:2733cb8c82a9
29 local active_sessions, active_jids = {}, {}; 29 local active_sessions, active_jids = {}, {};
30 local c2s_sessions, s2s_sessions; 30 local c2s_sessions, s2s_sessions;
31 if prosody and prosody.arg then 31 if prosody and prosody.arg then
32 c2s_sessions, s2s_sessions = module:shared("/*/c2s/sessions", "/*/s2s/sessions"); 32 c2s_sessions, s2s_sessions = module:shared("/*/c2s/sessions", "/*/s2s/sessions");
33 end 33 end
34
35 local memory_update_interval = module:get_option_number("statistics_meminfo_interval", 60);
34 36
35 local stats = { 37 local stats = {
36 total_users = { 38 total_users = {
37 get = function () return it.count(it.keys(bare_sessions)); end 39 get = function () return it.count(it.keys(bare_sessions)); end
38 }; 40 };
88 tostring = "%s%%"; 90 tostring = "%s%%";
89 }; 91 };
90 }; 92 };
91 93
92 if has_pposix and pposix.meminfo then 94 if has_pposix and pposix.meminfo then
95
96 local cached_meminfo, last_cache_update;
97 local function meminfo()
98 if not cached_meminfo or (os.time() - last_cache_update) > memory_update_interval then
99 cached_meminfo = pposix.meminfo();
100 last_cache_update = os.time();
101 end
102 return cached_meminfo;
103 end
104
93 stats.memory_allocated = { 105 stats.memory_allocated = {
94 get = function () return math.ceil(pposix.meminfo().allocated); end; 106 get = function () return math.ceil(meminfo().allocated); end;
95 tostring = human; 107 tostring = human;
96 } 108 }
97 stats.memory_used = { 109 stats.memory_used = {
98 get = function () return math.ceil(pposix.meminfo().used); end; 110 get = function () return math.ceil(meminfo().used); end;
99 tostring = human; 111 tostring = human;
100 } 112 }
101 stats.memory_unused = { 113 stats.memory_unused = {
102 get = function () return math.ceil(pposix.meminfo().unused); end; 114 get = function () return math.ceil(meminfo().unused); end;
103 tostring = human; 115 tostring = human;
104 } 116 }
105 stats.memory_returnable = { 117 stats.memory_returnable = {
106 get = function () return math.ceil(pposix.meminfo().returnable); end; 118 get = function () return math.ceil(meminfo().returnable); end;
107 tostring = human; 119 tostring = human;
108 } 120 }
109 end 121 end
110 122
111 local add_statistics_filter; -- forward decl 123 local add_statistics_filter; -- forward decl