81 lines
2.3 KiB
Lua
81 lines
2.3 KiB
Lua
local format = require 'format'
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local common = require 'common'
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local geometry = require 'geometry'
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local sys = require 'sys'
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return function(update_freq, devices, point)
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local PLOT_SEC_BREAK = 20
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local PLOT_HEIGHT = 56
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-- TODO currently this will find any block device
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local DEVICE_PATHS = sys.get_disk_paths(devices)
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local init_read_bytes, init_write_bytes = sys.get_total_disk_io(DEVICE_PATHS)
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local format_value_function = function(bps)
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local unit, value = format.convert_data_val(bps)
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return format.precision_round_to_string(value, 3)..' '..unit..'B/s'
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end
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local make_plot = function(y, label, init)
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return common.make_rate_timeseries(
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point.x,
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y,
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geometry.SECTION_WIDTH,
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PLOT_HEIGHT,
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format_value_function,
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common.converted_y_label_format_generator('B'),
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PLOT_SEC_BREAK,
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label,
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2,
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update_freq,
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init
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)
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end
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-----------------------------------------------------------------------------
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-- header
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local header = common.make_header(
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point.x,
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point.y,
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geometry.SECTION_WIDTH,
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'INPUT / OUTPUT'
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)
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-----------------------------------------------------------------------------
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-- reads
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local reads = make_plot(header.bottom_y, 'Reads', init_read_bytes)
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-----------------------------------------------------------------------------
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-- writes
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local writes = make_plot(
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header.bottom_y + PLOT_HEIGHT + PLOT_SEC_BREAK * 2,
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'Writes',
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init_write_bytes
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)
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-----------------------------------------------------------------------------
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-- main drawing functions
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local update = function()
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local read_bytes, write_bytes = sys.get_total_disk_io(DEVICE_PATHS)
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common.update_rate_timeseries(reads, read_bytes)
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common.update_rate_timeseries(writes, write_bytes)
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end
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local draw_static = function(cr)
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common.draw_header(cr, header)
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common.tagged_scaled_timeseries_draw_static(reads, cr)
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common.tagged_scaled_timeseries_draw_static(writes, cr)
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end
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local draw_dynamic = function(cr)
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common.tagged_scaled_timeseries_draw_dynamic(reads, cr)
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common.tagged_scaled_timeseries_draw_dynamic(writes, cr)
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end
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return {static = draw_static, dynamic = draw_dynamic, update = update}
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end
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