view mod_log_events_by_cpu_usage/mod_log_events_by_cpu_usage.lua @ 5117:2b94ee74d1f1

Backed out changeset 85882735fd33 This wasn't a complete fix and the complete fix is way too complex for me to do right now without a test setup.
author Jonas Schäfer <jonas@wielicki.name>
date Sat, 17 Dec 2022 14:13:06 +0100
parents c0bc97c0ba61
children
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module:set_global();

local treshold = module:get_option_number("log_cpu_threshold", 0.01);

function event_wrapper(handlers, event_name, event_data)
	local cpu_before = os.clock();
	local ret = handlers(event_name, event_data);
	local cpu_after = os.clock();
	if (cpu_after - cpu_before) > treshold then
		module:log("warn", "%g seconds of CPU usage while processing event '%s'", (cpu_after - cpu_before), event_name);
	end
	return ret;
end

local http_events = require "net.http.server"._events;
module:wrap_object_event(http_events, false, event_wrapper);

module:wrap_event(false, event_wrapper);
function module.add_host(module)
	module:wrap_event(false, event_wrapper);
end