135 lines
4.0 KiB
Lua
135 lines
4.0 KiB
Lua
local Util = require 'Util'
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local Common = require 'Common'
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local Geometry = require 'Geometry'
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return function(update_freq)
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local MODULE_Y = 380
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local TEXT_SPACING = 20
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local PLOT_SEC_BREAK = 20
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local PLOT_HEIGHT = 56
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local PKG0_PATH = '/sys/class/powercap/intel-rapl:0/energy_uj'
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local DRAM_PATH = '/sys/class/powercap/intel-rapl:0:2/energy_uj'
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-----------------------------------------------------------------------------
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-- header
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local header = Common.Header(
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Geometry.RIGHT_X,
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MODULE_Y,
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Geometry.SECTION_WIDTH,
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'POWER'
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)
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-----------------------------------------------------------------------------
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-- package 0 power plot
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local power_label_function = function(watts) return watts..' W' end
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local power_format_function = function(watts)
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return Util.precision_round_to_string(watts, 3).." W"
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end
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local build_plot = function(y, label, format_fun)
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return Common.initLabeledScalePlot(
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Geometry.RIGHT_X,
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y,
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Geometry.SECTION_WIDTH,
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PLOT_HEIGHT,
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format_fun,
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power_label_function,
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PLOT_SEC_BREAK,
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label,
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0,
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update_freq
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)
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end
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local pkg0 = build_plot(header.bottom_y, 'PKG0', power_format_function)
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-----------------------------------------------------------------------------
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-- DRAM power plot
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local CORE_Y = header.bottom_y + TEXT_SPACING + PLOT_SEC_BREAK + PLOT_HEIGHT
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local dram = build_plot(CORE_Y, 'DRAM', power_format_function)
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-----------------------------------------------------------------------------
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-- battery power plot
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local ac_format_function = function(watts)
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if watts == 0 then
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return "A/C"
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else
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return power_format_function(watts)
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end
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end
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local battery_draw = build_plot(
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CORE_Y + PLOT_SEC_BREAK * 2 + PLOT_HEIGHT,
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'Battery Draw',
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ac_format_function
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)
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-----------------------------------------------------------------------------
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-- update functions
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local read_uj = function(path)
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return Util.read_file(path, nil, '*n')
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end
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local prev_pkg0_uj_cnt = read_uj(PKG0_PATH)
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local prev_dram_uj_cnt = read_uj(DRAM_PATH)
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local calculate_power = function(prev_cnt, cnt, update_frequency)
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if cnt > prev_cnt then
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return (cnt - prev_cnt) * update_frequency * 0.000001
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else
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return 0
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end
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end
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local update = function(cr, is_using_ac)
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local pkg0_uj_cnt = read_uj(PKG0_PATH)
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local dram_uj_cnt = read_uj(DRAM_PATH)
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local pkg0_power = calculate_power(prev_pkg0_uj_cnt, pkg0_uj_cnt, update_freq)
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Common.annotated_scale_plot_set(pkg0, cr, pkg0_power)
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local dram_power = calculate_power(prev_dram_uj_cnt, dram_uj_cnt, update_freq)
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Common.annotated_scale_plot_set(dram, cr, dram_power)
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prev_pkg0_uj_cnt = pkg0_uj_cnt
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prev_dram_uj_cnt = dram_uj_cnt
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if is_using_ac then
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Common.annotated_scale_plot_set(battery_draw, cr, 0)
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else
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local current = Util.read_file('/sys/class/power_supply/BAT0/current_now', nil, '*n')
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local voltage = Util.read_file('/sys/class/power_supply/BAT0/voltage_now', nil, '*n')
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local power = current * voltage * 0.000000000001
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Common.annotated_scale_plot_set(battery_draw, cr, power)
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end
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end
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-----------------------------------------------------------------------------
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-- main functions
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local draw_static = function(cr)
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Common.drawHeader(cr, header)
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Common.annotated_scale_plot_draw_static(pkg0, cr)
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Common.annotated_scale_plot_draw_static(dram, cr)
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Common.annotated_scale_plot_draw_static(battery_draw, cr)
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end
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local draw_dynamic = function(cr, is_using_ac)
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update(cr, is_using_ac)
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Common.annotated_scale_plot_draw_dynamic(pkg0, cr)
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Common.annotated_scale_plot_draw_dynamic(dram, cr)
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Common.annotated_scale_plot_draw_dynamic(battery_draw, cr)
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end
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return {static = draw_static, dynamic = draw_dynamic}
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end
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