mirror of
https://github.com/moparisthebest/minetest
synced 2024-12-22 23:58:48 -05:00
278 lines
7.4 KiB
Lua
278 lines
7.4 KiB
Lua
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--Minetest
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--Copyright (C) 2016 T4im
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--
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--This program is free software; you can redistribute it and/or modify
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--it under the terms of the GNU Lesser General Public License as published by
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--the Free Software Foundation; either version 2.1 of the License, or
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--(at your option) any later version.
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--
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--This program is distributed in the hope that it will be useful,
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--but WITHOUT ANY WARRANTY; without even the implied warranty of
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--MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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--GNU Lesser General Public License for more details.
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--
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--You should have received a copy of the GNU Lesser General Public License along
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--with this program; if not, write to the Free Software Foundation, Inc.,
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--51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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local DIR_DELIM, LINE_DELIM = DIR_DELIM, "\n"
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local table, unpack, string, pairs, io, os = table, unpack, string, pairs, io, os
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local rep, sprintf, tonumber = string.rep, string.format, tonumber
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local core, setting_get = core, core.setting_get
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local reporter = {}
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---
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-- Shorten a string. End on an ellipsis if shortened.
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--
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local function shorten(str, length)
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if str and str:len() > length then
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return "..." .. str:sub(-(length-3))
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end
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return str
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end
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local function filter_matches(filter, text)
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return not filter or string.match(text, filter)
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end
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local function format_number(number, fmt)
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number = tonumber(number)
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if not number then
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return "N/A"
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end
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return sprintf(fmt or "%d", number)
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end
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local Formatter = {
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new = function(self, object)
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object = object or {}
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object.out = {} -- output buffer
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self.__index = self
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return setmetatable(object, self)
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end,
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__tostring = function (self)
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return table.concat(self.out, LINE_DELIM)
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end,
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print = function(self, text, ...)
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if (...) then
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text = sprintf(text, ...)
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end
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if text then
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-- Avoid format unicode issues.
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text = text:gsub("Ms", "µs")
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end
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table.insert(self.out, text or LINE_DELIM)
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end,
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flush = function(self)
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table.insert(self.out, LINE_DELIM)
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local text = table.concat(self.out, LINE_DELIM)
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self.out = {}
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return text
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end
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}
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local widths = { 55, 9, 9, 9, 5, 5, 5 }
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local txt_row_format = sprintf(" %%-%ds | %%%ds | %%%ds | %%%ds | %%%ds | %%%ds | %%%ds", unpack(widths))
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local HR = {}
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for i=1, #widths do
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HR[i]= rep("-", widths[i])
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end
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-- ' | ' should break less with github than '-+-', when people are pasting there
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HR = sprintf("-%s-", table.concat(HR, " | "))
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local TxtFormatter = Formatter:new {
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format_row = function(self, modname, instrument_name, statistics)
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local label
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if instrument_name then
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label = shorten(instrument_name, widths[1] - 5)
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label = sprintf(" - %s %s", label, rep(".", widths[1] - 5 - label:len()))
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else -- Print mod_stats
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label = shorten(modname, widths[1] - 2) .. ":"
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end
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self:print(txt_row_format, label,
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format_number(statistics.time_min),
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format_number(statistics.time_max),
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format_number(statistics:get_time_avg()),
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format_number(statistics.part_min, "%.1f"),
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format_number(statistics.part_max, "%.1f"),
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format_number(statistics:get_part_avg(), "%.1f")
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)
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end,
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format = function(self, filter)
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local profile = self.profile
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self:print("Values below show absolute/relative times spend per server step by the instrumented function.")
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self:print("A total of %d samples were taken", profile.stats_total.samples)
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if filter then
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self:print("The output is limited to '%s'", filter)
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end
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self:print()
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self:print(
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txt_row_format,
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"instrumentation", "min Ms", "max Ms", "avg Ms", "min %", "max %", "avg %"
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)
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self:print(HR)
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for modname,mod_stats in pairs(profile.stats) do
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if filter_matches(filter, modname) then
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self:format_row(modname, nil, mod_stats)
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if mod_stats.instruments ~= nil then
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for instrument_name, instrument_stats in pairs(mod_stats.instruments) do
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self:format_row(nil, instrument_name, instrument_stats)
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end
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end
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end
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end
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self:print(HR)
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if not filter then
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self:format_row("total", nil, profile.stats_total)
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end
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end
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}
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local CsvFormatter = Formatter:new {
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format_row = function(self, modname, instrument_name, statistics)
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self:print(
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"%q,%q,%d,%d,%d,%d,%d,%f,%f,%f",
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modname, instrument_name,
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statistics.samples,
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statistics.time_min,
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statistics.time_max,
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statistics:get_time_avg(),
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statistics.time_all,
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statistics.part_min,
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statistics.part_max,
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statistics:get_part_avg()
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)
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end,
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format = function(self, filter)
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self:print(
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"%q,%q,%q,%q,%q,%q,%q,%q,%q,%q",
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"modname", "instrumentation",
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"samples",
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"time min µs",
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"time max µs",
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"time avg µs",
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"time all µs",
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"part min %",
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"part max %",
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"part avg %"
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)
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for modname, mod_stats in pairs(self.profile.stats) do
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if filter_matches(filter, modname) then
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self:format_row(modname, "*", mod_stats)
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if mod_stats.instruments ~= nil then
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for instrument_name, instrument_stats in pairs(mod_stats.instruments) do
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self:format_row(modname, instrument_name, instrument_stats)
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end
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end
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end
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end
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end
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}
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local function format_statistics(profile, format, filter)
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local formatter
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if format == "csv" then
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formatter = CsvFormatter:new {
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profile = profile
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}
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else
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formatter = TxtFormatter:new {
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profile = profile
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}
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end
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formatter:format(filter)
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return formatter:flush()
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end
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---
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-- Format the profile ready for display and
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-- @return string to be printed to the console
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--
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function reporter.print(profile, filter)
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if filter == "" then filter = nil end
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return format_statistics(profile, "txt", filter)
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end
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---
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-- Serialize the profile data and
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-- @return serialized data to be saved to a file
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--
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local function serialize_profile(profile, format, filter)
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if format == "lua" or format == "json" or format == "json_pretty" then
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local stats = filter and {} or profile.stats
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if filter then
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for modname, mod_stats in pairs(profile.stats) do
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if filter_matches(filter, modname) then
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stats[modname] = mod_stats
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end
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end
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end
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if format == "lua" then
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return core.serialize(stats)
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elseif format == "json" then
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return core.write_json(stats)
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elseif format == "json_pretty" then
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return core.write_json(stats, true)
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end
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end
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-- Fall back to textual formats.
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return format_statistics(profile, format, filter)
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end
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local worldpath = core.get_worldpath()
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local function get_save_path(format, filter)
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local report_path = setting_get("profiler.report_path") or ""
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if report_path ~= "" then
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core.mkdir(sprintf("%s%s%s", worldpath, DIR_DELIM, report_path))
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end
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return (sprintf(
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"%s/%s/profile-%s%s.%s",
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worldpath,
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report_path,
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os.date("%Y%m%dT%H%M%S"),
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filter and ("-" .. filter) or "",
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format
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):gsub("[/\\]+", DIR_DELIM))-- Clean up delims
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end
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---
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-- Save the profile to the world path.
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-- @return success, log message
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--
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function reporter.save(profile, format, filter)
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if not format or format == "" then
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format = setting_get("profiler.default_report_format") or "txt"
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end
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if filter == "" then
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filter = nil
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end
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local path = get_save_path(format, filter)
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local output, io_err = io.open(path, "w")
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if not output then
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return false, "Saving of profile failed with: " .. io_err
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end
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local content, err = serialize_profile(profile, format, filter)
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if not content then
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output:close()
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return false, "Saving of profile failed with: " .. err
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end
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output:write(content)
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output:close()
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local logmessage = "Profile saved to " .. path
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core.log("action", logmessage)
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return true, logmessage
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end
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return reporter
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