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Find CPU frequencies #552

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Find CPU frequencies #552

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15 changes: 14 additions & 1 deletion widget/cpu.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@ local function factory(args)
for index,time in pairs(helpers.lines_match("cpu","/proc/stat")) do
local coreid = index - 1
local core = cpu.core[coreid] or
{ last_active = 0 , last_total = 0, usage = 0 }
{ last_active = 0 , last_total = 0, usage = 0, frequency = 0 }
local at = 1
local idle = 0
local total = 0
Expand Down Expand Up @@ -60,8 +60,21 @@ local function factory(args)
end
end

-- Read the frequency at which the CPUs are operating
-- This info is found in /proc/cpuinfo
local freq_sum = 0
local cpu_count = 0
for coreid,line in pairs(helpers.lines_match("cpu MHz", "/proc/cpuinfo")) do
local frequency = tonumber(string.match(line, "%d+%.%d+"))
cpu.core[coreid].frequency = frequency
freq_sum = freq_sum + frequency
cpu_count = cpu_count + 1
end
cpu.core[0].frequency = freq_sum / cpu_count -- coreid 0 is for average

cpu_now = cpu.core
cpu_now.usage = cpu_now[0].usage
cpu_now.frequency = cpu_now[0].frequency
widget = cpu.widget

settings()
Expand Down