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ENH reduce memory table power consumption

This commit is contained in:
Nathan Dwarshuis 2020-04-11 15:14:14 -04:00
parent d1221a4ae9
commit 6fa19db996
1 changed files with 39 additions and 32 deletions
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67
drawing/Memory.lua
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@ -36,6 +36,15 @@ local MEMINFO_REGEX = '\nMemFree:%s+(%d+).+'..
local NUM_ROWS = 5 local NUM_ROWS = 5
local TABLE_CONKY = {}
for r = 1, NUM_ROWS do
TABLE_CONKY[r] = {}
TABLE_CONKY[r].comm = '${top_mem name '..r..'}'
TABLE_CONKY[r].pid = '${top_mem pid '..r..'}'
TABLE_CONKY[r].mem = '${top_mem mem '..r..'}'
end
local header = _G_Widget_.Header{ local header = _G_Widget_.Header{
x = _G_INIT_DATA_.RIGHT_X, x = _G_INIT_DATA_.RIGHT_X,
y = _MODULE_Y_, y = _MODULE_Y_,
@ -140,47 +149,45 @@ local tbl = _G_Widget_.Table{
} }
local update = function(cr) local update = function(cr)
-- see source for the 'free' command (sysinfo.c) for formulas local conky = Util.conky
-- see source for the 'free' command (sysinfo.c) for formulas
local memfree_kb, buffers_kb, cached_kb, swap_total_kb, swap_free_kb, local memfree_kb, buffers_kb, cached_kb, swap_total_kb, swap_free_kb,
slab_reclaimable_kb = __string_match(Util.read_file('/proc/meminfo'), MEMINFO_REGEX) slab_reclaimable_kb = __string_match(Util.read_file('/proc/meminfo'), MEMINFO_REGEX)
local used_percent = (MEM_TOTAL_KB - memfree_kb - cached_kb - buffers_kb - slab_reclaimable_kb) / MEM_TOTAL_KB local used_percent = (MEM_TOTAL_KB - memfree_kb - cached_kb - buffers_kb - slab_reclaimable_kb) / MEM_TOTAL_KB
Dial.set(dial, used_percent) Dial.set(dial, used_percent)
CriticalText.set(total_used, cr, Util.round_to_string(used_percent * 100)) CriticalText.set(total_used, cr, Util.round_to_string(used_percent * 100))
local cache_theta = (DIAL_THETA_0 - DIAL_THETA_1) / MEM_TOTAL_KB * memfree_kb + DIAL_THETA_1 local cache_theta = (DIAL_THETA_0 - DIAL_THETA_1) / MEM_TOTAL_KB * memfree_kb + DIAL_THETA_1
__cairo_path_destroy(cache_arc.path) __cairo_path_destroy(cache_arc.path)
cache_arc.path = Arc.create_path(cr, DIAL_X, DIAL_Y, DIAL_RADIUS, dial.dial_angle, cache_theta) cache_arc.path = Arc.create_path(cr, DIAL_X, DIAL_Y, DIAL_RADIUS, dial.dial_angle, cache_theta)
CriticalText.set(swap.percent, cr, Util.precision_round_to_string( CriticalText.set(swap.percent, cr, Util.precision_round_to_string(
(swap_total_kb - swap_free_kb) / swap_total_kb * 100)) (swap_total_kb - swap_free_kb) / swap_total_kb * 100))
local _percents = cache.percents local _percents = cache.percents
TextColumn.set(_percents, cr, 1, Util.precision_round_to_string( TextColumn.set(_percents, cr, 1, Util.precision_round_to_string(
cached_kb / MEM_TOTAL_KB * 100)) cached_kb / MEM_TOTAL_KB * 100))
TextColumn.set(_percents, cr, 2, Util.precision_round_to_string( TextColumn.set(_percents, cr, 2, Util.precision_round_to_string(
buffers_kb / MEM_TOTAL_KB * 100)) buffers_kb / MEM_TOTAL_KB * 100))
TextColumn.set(_percents, cr, 3, Util.precision_round_to_string( TextColumn.set(_percents, cr, 3, Util.precision_round_to_string(
slab_reclaimable_kb / MEM_TOTAL_KB * 100)) slab_reclaimable_kb / MEM_TOTAL_KB * 100))
LabelPlot.update(plot, used_percent) LabelPlot.update(plot, used_percent)
local ps_glob = __io_popen('ps -A -o "pmem,pid,comm" --sort=-pmem h') for r = 1, NUM_ROWS do
local comm = conky(TABLE_CONKY[r].comm, '(%S+)') -- may have trailing space
for r = 1, NUM_ROWS do local pid = conky(TABLE_CONKY[r].pid)
local ps_line = ps_glob:read() local mem = conky(TABLE_CONKY[r].mem)
local pmem, pid, comm = __string_match(ps_line, '(%d+%.%d+)%s+(%d+)%s+(.+)$') Table.set(tbl, cr, 1, r, comm)
Table.set(tbl, cr, 1, r, comm) Table.set(tbl, cr, 2, r, pid)
Table.set(tbl, cr, 2, r, pid) Table.set(tbl, cr, 3, r, mem)
Table.set(tbl, cr, 3, r, pmem) end
end
ps_glob:close()
end end
_MODULE_Y_ = nil _MODULE_Y_ = nil