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conky-config
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ENH get cpu loads faster

This commit is contained in:
Nathan Dwarshuis 2021-07-12 23:49:52 -04:00
parent 1fe6f2e170
commit 7befb37523
1 changed files with 35 additions and 8 deletions
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43
drawing/Processor.lua
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@ -6,6 +6,8 @@ local Table = require 'Table'
local Util = require 'Util'
local Common = require 'Common'
local __string_match = string.match
local CORETEMP_PATH = '/sys/devices/platform/coretemp.0/hwmon/hwmon%i/%s'
local NUM_PHYSICAL_CORES = 4
@ -40,12 +42,10 @@ local _TABLE_SECTION_BREAK_ = 20
local _TABLE_HEIGHT_ = 114
local _create_core_ = function(cores, id, x, y)
local conky_loads = {}
local conky_freqs = {}
for c = 0, NUM_PHYSICAL_CORES * NUM_THREADS_PER_CORE - 1 do
if Util.read_file('/sys/devices/system/cpu/cpu'..c..'/topology/core_id', nil, '*n') == id then
table.insert(conky_loads, '${cpu cpu'..(c+1)..'}')
table.insert(conky_freqs, '${freq '..c..'}')
end
end
@ -73,7 +73,6 @@ local _create_core_ = function(cores, id, x, y)
90
),
coretemp_path = string.format(CORETEMP_PATH, hwmon_index, 'temp'..(id + 2)..'_input'),
conky_loads = conky_loads,
conky_freqs = conky_freqs
}
end
@ -137,23 +136,51 @@ local tbl = Common.initTable(
{'Name', 'PID', 'CPU (%)'}
)
local cpu_loads = {}
local NCPU = NUM_THREADS_PER_CORE * NUM_PHYSICAL_CORES
for i = 1, NCPU do
cpu_loads[i] = {active_prev = 0, active_total = 0}
end
local _read_cpu = function()
local i = NCPU
local iter = io.lines('/proc/stat')
iter() -- ignore first line
for ln in iter do
if i == 0 then break end
local user, system, idle = __string_match(ln, '(%d+) %d+ (%d+) (%d+)', 5)
local c = cpu_loads[i]
c.active_prev = c.active
c.total_prev = c.total
c.active = user + system
c.total = user + system + idle
i = i - 1
end
end
_read_cpu() -- prime once
local update = function(cr)
local conky = Util.conky
local load_sum = 0
local freq_sum = 0
_read_cpu()
for c = 1, NUM_PHYSICAL_CORES do
local core = cores[c]
local conky_loads = core.conky_loads
local conky_freqs = core.conky_freqs
for t = 1, NUM_THREADS_PER_CORE do
local percent = Util.conky_numeric(conky_loads[t]) * 0.01
CompoundDial.set(core.dials, t, percent)
load_sum = load_sum + percent
local cl = cpu_loads[(c - 1) * NUM_THREADS_PER_CORE + t]
if cl.total > cl.total_prev then
local percent = (cl.active - cl.active_prev) / (cl.total - cl.total_prev)
CompoundDial.set(core.dials, t, percent)
load_sum = load_sum + percent
end
-- TODO get this from /proc/cpuinfo and it might be faster?
freq_sum = freq_sum + Util.conky_numeric(conky_freqs[t])
end