conky-config/drawing/ReadWrite.lua

103 lines
2.8 KiB
Lua
Raw Normal View History

local Util = require 'Util'
local Common = require 'Common'
local Geometry = require 'Geometry'
2017-07-19 00:36:15 -04:00
local __tonumber = tonumber
local __string_match = string.match
2021-07-13 23:01:28 -04:00
local __math_floor = math.floor
2017-07-19 00:36:15 -04:00
local _PLOT_SEC_BREAK_ = 20
local _PLOT_HEIGHT_ = 56
local BLOCK_SIZE_BYTES = 512
local STAT_FILE = '/sys/block/sda/stat'
-- fields 3 and 7 (sectors read and written)
local RW_REGEX = '%s+%d+%s+%d+%s+(%d+)%s+%d+%s+%d+%s+%d+%s+(%d+)'
local read_stat_file = function()
local bytes_r, bytes_w = __string_match(Util.read_file(STAT_FILE), RW_REGEX)
2017-07-19 00:36:15 -04:00
return __tonumber(bytes_r) * BLOCK_SIZE_BYTES, __tonumber(bytes_w) * BLOCK_SIZE_BYTES
end
local io_label_function = function(bytes)
2021-06-17 18:18:09 -04:00
local new_unit, new_value = Util.convert_data_val(bytes)
2021-07-13 23:01:28 -04:00
return __math_floor(new_value)..' '..new_unit..'B/s'
2017-07-19 00:36:15 -04:00
end
local format_value_function = function(bps)
local unit, value = Util.convert_data_val(bps)
return Util.precision_round_to_string(value, 3)..' '..unit..'B/s'
end
return function(update_freq)
local header = Common.Header(
Geometry.CENTER_LEFT_X,
Geometry.TOP_Y,
Geometry.SECTION_WIDTH,
'INPUT / OUTPUT'
)
local reads = Common.initLabeledScalePlot(
Geometry.CENTER_LEFT_X,
header.bottom_y,
Geometry.SECTION_WIDTH,
_PLOT_HEIGHT_,
format_value_function,
io_label_function,
_PLOT_SEC_BREAK_,
2021-07-13 22:54:41 -04:00
'Reads',
2,
update_freq
)
local writes = Common.initLabeledScalePlot(
Geometry.CENTER_LEFT_X,
header.bottom_y + _PLOT_HEIGHT_ + _PLOT_SEC_BREAK_ * 2,
Geometry.SECTION_WIDTH,
_PLOT_HEIGHT_,
format_value_function,
io_label_function,
_PLOT_SEC_BREAK_,
2021-07-13 22:54:41 -04:00
'Writes',
2,
update_freq
)
2017-07-19 00:36:15 -04:00
reads.byte_cnt = 0
writes.byte_cnt = 0
reads.prev_byte_cnt, writes.prev_byte_cnt = read_stat_file()
local update_stat = function(cr, stat, byte_cnt)
local delta_bytes = byte_cnt - stat.prev_byte_cnt
stat.prev_byte_cnt = byte_cnt
local plot_value = 0
if delta_bytes > 0 then
local bps = delta_bytes * update_freq
plot_value = bps
end
Common.annotated_scale_plot_set(stat, cr, plot_value)
end
local update = function(cr)
local read_byte_cnt, write_byte_cnt = read_stat_file()
update_stat(cr, reads, read_byte_cnt)
update_stat(cr, writes, write_byte_cnt)
end
local draw_static = function(cr)
Common.drawHeader(cr, header)
Common.annotated_scale_plot_draw_static(reads, cr)
Common.annotated_scale_plot_draw_static(writes, cr)
end
local draw_dynamic = function(cr)
update(cr)
Common.annotated_scale_plot_draw_dynamic(reads, cr)
Common.annotated_scale_plot_draw_dynamic(writes, cr)
end
return {static = draw_static, dynamic = draw_dynamic}
2017-07-19 00:36:15 -04:00
end