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annotate mod_log_events_by_cpu_usage/mod_log_events_by_cpu_usage.lua @ 5627:3a5cf8d80089

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mod_http_oauth2: Tweak method of centering the UI The percentage here was relative to the viewport width, which on some very wide screens may put the UI slightly outside of the view, requiring scrolling to see. By using a unit relative to the height of the viewport, this is avoided and should work better. But no guarantees, it's still possible to resize the browser or adjust font sizes so that the UI goes out of view.
author Kim Alvefur <zash@zash.se>
date Mon, 31 Jul 2023 07:28:09 +0200
parents c0bc97c0ba61
children
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5fe34e5f9829 mod_log_events_by_memory: Log events where Lua memory usage increased
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1 module:set_global();
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2
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c0bc97c0ba61 mod_log_events_by_cpu_usage: Log events where more than a certain amount of CPU time was spent
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3 local treshold = module:get_option_number("log_cpu_threshold", 0.01);
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4
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5 function event_wrapper(handlers, event_name, event_data)
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6 local cpu_before = os.clock();
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7 local ret = handlers(event_name, event_data);
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8 local cpu_after = os.clock();
c0bc97c0ba61 mod_log_events_by_cpu_usage: Log events where more than a certain amount of CPU time was spent
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9 if (cpu_after - cpu_before) > treshold then
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10 module:log("warn", "%g seconds of CPU usage while processing event '%s'", (cpu_after - cpu_before), event_name);
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11 end
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12 return ret;
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13 end
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14
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15 local http_events = require "net.http.server"._events;
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16 module:wrap_object_event(http_events, false, event_wrapper);
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18 module:wrap_event(false, event_wrapper);
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19 function module.add_host(module)
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20 module:wrap_event(false, event_wrapper);
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21 end