ENH parameterize mem module
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parent
50809883a3
commit
779452e9d1
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@ -5,7 +5,6 @@ local common = require 'common'
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local geometry = require 'geometry'
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local pure = require 'pure'
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return function(update_freq)
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local MODULE_Y = 712
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local DIAL_THICKNESS = 8
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@ -19,6 +18,140 @@ return function(update_freq)
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local TABLE_SECTION_BREAK = 20
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local TABLE_HEIGHT = 114
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local __string_match = string.match
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local __math_floor = math.floor
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-----------------------------------------------------------------------------
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-- header
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local mk_header = pure.partial(
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common.mk_header,
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'MEMORY',
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geometry.SECTION_WIDTH,
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geometry.RIGHT_X
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)
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-----------------------------------------------------------------------------
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-- mem stats (dial + text)
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local mk_stats = function(y)
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local MEM_X = geometry.RIGHT_X + DIAL_RADIUS + DIAL_THICKNESS / 2
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local DIAL_DIAMETER = DIAL_RADIUS * 2 + DIAL_THICKNESS
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local SWAP_X = MEM_X + DIAL_DIAMETER + DIAL_SPACING
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local CACHE_X = SWAP_X + CACHE_X_OFFSET + DIAL_DIAMETER / 2
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local CACHE_WIDTH = geometry.RIGHT_X + geometry.SECTION_WIDTH - CACHE_X
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local format_percent = function(x)
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return string.format('%i%%', x)
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end
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local mem = common.make_dial(
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MEM_X,
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y + DIAL_RADIUS,
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DIAL_RADIUS,
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DIAL_THICKNESS,
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80,
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format_percent,
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__math_floor
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)
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local swap = common.make_dial(
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SWAP_X,
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y + DIAL_RADIUS,
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DIAL_RADIUS,
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DIAL_THICKNESS,
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80,
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format_percent,
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__math_floor
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)
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local cache = common.make_text_rows_formatted(
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CACHE_X,
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y + CACHE_Y_OFFSET,
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CACHE_WIDTH,
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TEXT_SPACING,
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{'Page Cache', 'Buffers', 'Shared', 'Kernel Slab'},
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'%.1f%%'
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)
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local update = function(s)
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local m = s.mem
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local w = s.swap
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common.dial_set(mem, m.used_percent * 100)
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common.dial_set(swap, (w.total - w.free) / w.total * 100)
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common.text_rows_set(cache, 1, m.cached / m.total * 100)
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common.text_rows_set(cache, 2, m.buffers / m.total * 100)
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common.text_rows_set(cache, 3, m.shmem / m.total * 100)
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common.text_rows_set(cache, 4, m.sreclaimable / m.total * 100)
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end
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local static = function(cr)
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common.dial_draw_static(mem, cr)
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common.dial_draw_static(swap, cr)
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common.text_rows_draw_static(cache, cr)
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end
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local dynamic = function(cr)
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common.dial_draw_dynamic(mem, cr)
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common.dial_draw_dynamic(swap, cr)
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common.text_rows_draw_dynamic(cache, cr)
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end
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return common.mk_acc(DIAL_DIAMETER, update, static, dynamic)
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end
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-----------------------------------------------------------------------------
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-- memory consumption plot
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local mk_plot = function(y)
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local obj = common.make_percent_timeseries(
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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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update_freq
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)
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return common.mk_acc(
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PLOT_HEIGHT,
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function(s) timeseries.update(obj, s.mem.used_percent) end,
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pure.partial(timeseries.draw_static, obj),
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pure.partial(timeseries.draw_dynamic, obj)
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)
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end
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-----------------------------------------------------------------------------
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-- memory top table
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local mk_tbl = function(y)
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local NUM_ROWS = 5
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local TABLE_CONKY = pure.map_n(
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function(i)
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return {
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comm = '${top_mem name '..i..'}',
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pid = '${top_mem pid '..i..'}',
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mem = '${top_mem mem '..i..'}',
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}
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end,
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NUM_ROWS)
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local obj = common.make_text_table(
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geometry.RIGHT_X,
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y,
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geometry.SECTION_WIDTH,
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TABLE_HEIGHT,
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NUM_ROWS,
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'Mem (%)'
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)
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local update = function(_)
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for r = 1, NUM_ROWS do
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text_table.set(obj, 1, r, i_o.conky(TABLE_CONKY[r].comm, '(%S+)'))
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text_table.set(obj, 2, r, i_o.conky(TABLE_CONKY[r].pid))
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text_table.set(obj, 3, r, i_o.conky(TABLE_CONKY[r].mem))
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end
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end
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return common.mk_acc(
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TABLE_HEIGHT,
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update,
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pure.partial(text_table.draw_static, obj),
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pure.partial(text_table.draw_dynamic, obj)
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)
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end
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-----------------------------------------------------------------------------
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-- state
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local MEMINFO_REGEX = '\nMemFree:%s+(%d+).+'..
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'\nBuffers:%s+(%d+).+'..
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'\nCached:%s+(%d+).+'..
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@ -26,167 +159,49 @@ return function(update_freq)
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'\nShmem:%s+(%d+).+'..
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'\nSReclaimable:%s+(%d+)'
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local __string_match = string.match
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local __math_floor = math.floor
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-----------------------------------------------------------------------------
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-- header
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local header = common.make_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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'MEMORY'
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)
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-----------------------------------------------------------------------------
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-- mem consumption dial
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local get_meminfo_field = function(field)
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return tonumber(i_o.read_file('/proc/meminfo', field..':%s+(%d+)'))
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end
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local memtotal = get_meminfo_field('MemTotal')
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local swaptotal = get_meminfo_field('SwapTotal')
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local FORMAT_PERCENT = function(x)
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return string.format('%i%%', x)
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local state = {
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mem = {total = get_meminfo_field('MemTotal')},
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swap = {total = get_meminfo_field('SwapTotal')}
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}
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local read_state = function()
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local m = state.mem
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-- see manpage for free command for formulas
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m.memfree,
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m.buffers,
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m.cached,
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state.swap.free,
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m.shmem,
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m.sreclaimable
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= __string_match(i_o.read_file('/proc/meminfo'), MEMINFO_REGEX)
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m.used_percent =
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(m.total -
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m.memfree -
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m.cached -
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m.buffers -
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m.sreclaimable) / m.total
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return state
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end
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local MEM_X = geometry.RIGHT_X + DIAL_RADIUS + DIAL_THICKNESS / 2
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local MEM_Y = header.bottom_y + DIAL_RADIUS + DIAL_THICKNESS / 2
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local DIAL_DIAMETER = DIAL_RADIUS * 2 + DIAL_THICKNESS
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local mem = common.make_dial(
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MEM_X,
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MEM_Y,
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DIAL_RADIUS,
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DIAL_THICKNESS,
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80,
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FORMAT_PERCENT,
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__math_floor
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)
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-----------------------------------------------------------------------------
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-- swap consumption dial
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local SWAP_X = MEM_X + DIAL_DIAMETER + DIAL_SPACING
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local swap = common.make_dial(
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SWAP_X,
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MEM_Y,
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DIAL_RADIUS,
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DIAL_THICKNESS,
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80,
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FORMAT_PERCENT,
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__math_floor
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)
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-----------------------------------------------------------------------------
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-- swap/buffers stats
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local CACHE_Y = header.bottom_y + CACHE_Y_OFFSET
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local CACHE_X = SWAP_X + CACHE_X_OFFSET + DIAL_DIAMETER / 2
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local CACHE_WIDTH = geometry.RIGHT_X + geometry.SECTION_WIDTH - CACHE_X
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local cache = common.make_text_rows_formatted(
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CACHE_X,
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CACHE_Y,
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CACHE_WIDTH,
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TEXT_SPACING,
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{'Page Cache', 'Buffers', 'Shared', 'Kernel Slab'},
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'%.1f%%'
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)
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-----------------------------------------------------------------------------
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-- memory consumption plot
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local PLOT_Y = header.bottom_y + PLOT_SECTION_BREAK + DIAL_DIAMETER
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local plot = common.make_percent_timeseries(
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geometry.RIGHT_X,
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PLOT_Y,
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geometry.SECTION_WIDTH,
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PLOT_HEIGHT,
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update_freq
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)
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-----------------------------------------------------------------------------
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-- memory top table
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local NUM_ROWS = 5
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local TABLE_CONKY = pure.map_n(
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function(i)
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return {
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comm = '${top_mem name '..i..'}',
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pid = '${top_mem pid '..i..'}',
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mem = '${top_mem mem '..i..'}',
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}
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end,
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NUM_ROWS)
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local tbl = common.make_text_table(
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geometry.RIGHT_X,
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PLOT_Y + PLOT_HEIGHT + TABLE_SECTION_BREAK,
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geometry.SECTION_WIDTH,
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TABLE_HEIGHT,
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NUM_ROWS,
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'Mem (%)'
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)
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-----------------------------------------------------------------------------
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-- main functions
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local update = function()
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-- see manpage for free command for formulas
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local memfree,
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buffers,
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cached,
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swapfree,
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shmem,
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sreclaimable
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= __string_match(i_o.read_file('/proc/meminfo'), MEMINFO_REGEX)
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local rbs = common.reduce_blocks_(
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MODULE_Y,
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{
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common.mk_block(mk_header, true, 0),
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common.mk_block(mk_stats, true, 0),
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common.mk_block(mk_plot, true, PLOT_SECTION_BREAK),
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common.mk_block(mk_tbl, true, TABLE_SECTION_BREAK),
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}
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)
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local used_percent =
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(memtotal -
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memfree -
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cached -
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buffers -
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sreclaimable) / memtotal
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common.dial_set(mem, used_percent * 100)
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common.dial_set(swap, (swaptotal - swapfree) / swaptotal * 100)
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common.text_rows_set(cache, 1, cached / memtotal * 100)
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common.text_rows_set(cache, 2, buffers / memtotal * 100)
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common.text_rows_set(cache, 3, shmem / memtotal * 100)
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common.text_rows_set(cache, 4, sreclaimable / memtotal * 100)
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timeseries.update(plot, used_percent)
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for r = 1, NUM_ROWS do
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text_table.set(tbl, 1, r, i_o.conky(TABLE_CONKY[r].comm, '(%S+)'))
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text_table.set(tbl, 2, r, i_o.conky(TABLE_CONKY[r].pid))
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text_table.set(tbl, 3, r, i_o.conky(TABLE_CONKY[r].mem))
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end
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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.dial_draw_static(mem, cr)
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common.dial_draw_static(swap, cr)
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common.text_rows_draw_static(cache, cr)
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timeseries.draw_static(plot, cr)
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text_table.draw_static(tbl, cr)
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end
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local draw_dynamic = function(cr)
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common.dial_draw_dynamic(mem, cr)
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common.dial_draw_dynamic(swap, cr)
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common.text_rows_draw_dynamic(cache, cr)
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timeseries.draw_dynamic(plot, cr)
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text_table.draw_dynamic(tbl, cr)
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end
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return {dynamic = draw_dynamic, static = draw_static, update = update}
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return {
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static = rbs.static_drawer,
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dynamic = rbs.dynamic_drawer,
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update = function() rbs.updater(read_state()) end,
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}
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end
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