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-rw-r--r--cpu-widget/cpu-widget.lua281
1 files changed, 159 insertions, 122 deletions
diff --git a/cpu-widget/cpu-widget.lua b/cpu-widget/cpu-widget.lua
index bed40fe..d804c80 100644
--- a/cpu-widget/cpu-widget.lua
+++ b/cpu-widget/cpu-widget.lua
@@ -17,6 +17,9 @@ local gears = require("gears")
local CMD = [[sh -c "grep '^cpu.' /proc/stat; ps -eo '%p|%c|%C|' -o "%mem" -o '|%a' --sort=-%cpu ]]
.. [[| head -11 | tail -n +2"]]
+-- A smaller command, less resource intensive, used when popup is not shown.
+local CMD_slim = [[sh -c "grep '^cpu.' /proc/stat | head -n 1" ]]
+
local HOME_DIR = os.getenv("HOME")
local WIDGET_DIR = HOME_DIR .. '/.config/awesome/awesome-wm-widgets/cpu-widget'
@@ -111,6 +114,14 @@ local function worker(user_args)
color = "linear:0,0:0,20:0,#FF0000:0.3,#FFFF00:0.6," .. color
}
+ -- This timer periodically executes the heavy command while the popup is open.
+ -- It is stopped when the popup is closed and only the slim command is run then.
+ -- This greatly improves performance while the popup is closed at the small cost
+ -- of a slightly longer popup opening time.
+ local popup_timer = gears.timer {
+ timeout = timeout
+ }
+
local popup = awful.popup{
ontop = true,
visible = false,
@@ -131,8 +142,14 @@ local function worker(user_args)
awful.button({}, 1, function()
if popup.visible then
popup.visible = not popup.visible
+ -- When the popup is not visible, stop the timer
+ popup_timer:stop()
else
popup:move_next_to(mouse.current_widget_geometry)
+ -- Restart the timer, when the popup becomes visible
+ -- Emit the signal to start the timer directly and not wait the timeout first
+ popup_timer:start()
+ popup_timer:emit_signal("timeout")
end
end)
)
@@ -149,148 +166,168 @@ local function worker(user_args)
widget = wibox.container.margin
}
- local cpus = {}
- watch(CMD, timeout, function(widget, stdout)
- local i = 1
- local j = 1
- for line in stdout:gmatch("[^\r\n]+") do
- if starts_with(line, 'cpu') then
+ -- This part runs constantly, also when the popup is closed.
+ -- It updates the graph widget in the bar.
+ local maincpu = {}
+ watch(CMD_slim, timeout, function(widget, stdout)
- if cpus[i] == nil then cpus[i] = {} end
+ local _, user, nice, system, idle, iowait, irq, softirq, steal, _, _ =
+ stdout:match('(%w+)%s+(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)')
- local name, user, nice, system, idle, iowait, irq, softirq, steal, _, _ =
- line:match('(%w+)%s+(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)')
+ local total = user + nice + system + idle + iowait + irq + softirq + steal
- local total = user + nice + system + idle + iowait + irq + softirq + steal
+ local diff_idle = idle - tonumber(maincpu['idle_prev'] == nil and 0 or maincpu['idle_prev'])
+ local diff_total = total - tonumber(maincpu['total_prev'] == nil and 0 or maincpu['total_prev'])
+ local diff_usage = (1000 * (diff_total - diff_idle) / diff_total + 5) / 10
- local diff_idle = idle - tonumber(cpus[i]['idle_prev'] == nil and 0 or cpus[i]['idle_prev'])
- local diff_total = total - tonumber(cpus[i]['total_prev'] == nil and 0 or cpus[i]['total_prev'])
- local diff_usage = (1000 * (diff_total - diff_idle) / diff_total + 5) / 10
+ maincpu['total_prev'] = total
+ maincpu['idle_prev'] = idle
- cpus[i]['total_prev'] = total
- cpus[i]['idle_prev'] = idle
+ widget:add_value(diff_usage)
+ end,
+ cpugraph_widget
+ )
- if i == 1 then
- widget:add_value(diff_usage)
- end
+ -- This part runs whenever the timer is fired.
+ -- It therefore only runs when the popup is open.
+ local cpus = {}
+ popup_timer:connect_signal('timeout', function()
+ awful.spawn.easy_async(CMD, function(stdout, _, _, _)
+ local i = 1
+ local j = 1
+ for line in stdout:gmatch("[^\r\n]+") do
+ if starts_with(line, 'cpu') then
- local row = wibox.widget
- {
- create_textbox{text = name},
- create_textbox{text = math.floor(diff_usage) .. '%'},
- {
- max_value = 100,
- value = diff_usage,
- forced_height = 20,
- forced_width = 150,
- paddings = 1,
- margins = 4,
- border_width = 1,
- border_color = beautiful.bg_focus,
- background_color = beautiful.bg_normal,
- bar_border_width = 1,
- bar_border_color = beautiful.bg_focus,
- color = "linear:150,0:0,0:0,#D08770:0.3,#BF616A:0.6," .. beautiful.fg_normal,
- widget = wibox.widget.progressbar,
+ if cpus[i] == nil then cpus[i] = {} end
- },
- layout = wibox.layout.ratio.horizontal
- }
- row:ajust_ratio(2, 0.15, 0.15, 0.7)
- cpu_rows[i] = row
- i = i + 1
- else
- if is_update == true then
-
- local columns = split(line, '|')
-
- local pid = columns[1]
- local comm = columns[2]
- local cpu = columns[3]
- local mem = columns[4]
- local cmd = columns[5]
-
- local kill_proccess_button = enable_kill_button and create_kill_process_button() or nil
-
- local pid_name_rest = wibox.widget{
- create_textbox{text = pid},
- create_textbox{text = comm},
- {
- create_textbox{text = cpu, align = 'center'},
- create_textbox{text = mem, align = 'center'},
- kill_proccess_button,
- layout = wibox.layout.fixed.horizontal
- },
- layout = wibox.layout.ratio.horizontal
- }
- pid_name_rest:ajust_ratio(2, 0.2, 0.47, 0.33)
+ local name, user, nice, system, idle, iowait, irq, softirq, steal, _, _ =
+ line:match('(%w+)%s+(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)%s(%d+)')
- local row = wibox.widget {
- {
- pid_name_rest,
- top = 4,
- bottom = 4,
- widget = wibox.container.margin
- },
- widget = wibox.container.background
- }
+ local total = user + nice + system + idle + iowait + irq + softirq + steal
- row:connect_signal("mouse::enter", function(c) c:set_bg(beautiful.bg_focus) end)
- row:connect_signal("mouse::leave", function(c) c:set_bg(beautiful.bg_normal) end)
+ local diff_idle = idle - tonumber(cpus[i]['idle_prev'] == nil and 0 or cpus[i]['idle_prev'])
+ local diff_total = total - tonumber(cpus[i]['total_prev'] == nil and 0 or cpus[i]['total_prev'])
+ local diff_usage = (1000 * (diff_total - diff_idle) / diff_total + 5) / 10
- if enable_kill_button then
- row:connect_signal("mouse::enter", function() kill_proccess_button.icon.opacity = 1 end)
- row:connect_signal("mouse::leave", function() kill_proccess_button.icon.opacity = 0.1 end)
+ cpus[i]['total_prev'] = total
+ cpus[i]['idle_prev'] = idle
- kill_proccess_button:buttons(
- awful.util.table.join( awful.button({}, 1, function()
- row:set_bg('#ff0000')
- awful.spawn.with_shell('kill -9 ' .. pid)
- end) ) )
- end
+ local row = wibox.widget
+ {
+ create_textbox{text = name},
+ create_textbox{text = math.floor(diff_usage) .. '%'},
+ {
+ max_value = 100,
+ value = diff_usage,
+ forced_height = 20,
+ forced_width = 150,
+ paddings = 1,
+ margins = 4,
+ border_width = 1,
+ border_color = beautiful.bg_focus,
+ background_color = beautiful.bg_normal,
+ bar_border_width = 1,
+ bar_border_color = beautiful.bg_focus,
+ color = "linear:150,0:0,0:0,#D08770:0.3,#BF616A:0.6," .. beautiful.fg_normal,
+ widget = wibox.widget.progressbar,
- awful.tooltip {
- objects = { row },
- mode = 'outside',
- preferred_positions = {'bottom'},
- timer_function = function()
- local text = cmd
- if process_info_max_length > 0 and text:len() > process_info_max_length then
- text = text:sub(0, process_info_max_length - 3) .. '...'
- end
-
- return text
- :gsub('%s%-', '\n\t-') -- put arguments on a new line
- :gsub(':/', '\n\t\t:/') -- java classpath uses : to separate jars
- end,
+ },
+ layout = wibox.layout.ratio.horizontal
}
+ row:ajust_ratio(2, 0.15, 0.15, 0.7)
+ cpu_rows[i] = row
+ i = i + 1
+ else
+ if is_update == true then
+
+ local columns = split(line, '|')
+
+ local pid = columns[1]
+ local comm = columns[2]
+ local cpu = columns[3]
+ local mem = columns[4]
+ local cmd = columns[5]
+
+ local kill_proccess_button = enable_kill_button and create_kill_process_button() or nil
+
+ local pid_name_rest = wibox.widget{
+ create_textbox{text = pid},
+ create_textbox{text = comm},
+ {
+ create_textbox{text = cpu, align = 'center'},
+ create_textbox{text = mem, align = 'center'},
+ kill_proccess_button,
+ layout = wibox.layout.fixed.horizontal
+ },
+ layout = wibox.layout.ratio.horizontal
+ }
+ pid_name_rest:ajust_ratio(2, 0.2, 0.47, 0.33)
+
+ local row = wibox.widget {
+ {
+ pid_name_rest,
+ top = 4,
+ bottom = 4,
+ widget = wibox.container.margin
+ },
+ widget = wibox.container.background
+ }
+
+ row:connect_signal("mouse::enter", function(c) c:set_bg(beautiful.bg_focus) end)
+ row:connect_signal("mouse::leave", function(c) c:set_bg(beautiful.bg_normal) end)
+
+ if enable_kill_button then
+ row:connect_signal("mouse::enter", function() kill_proccess_button.icon.opacity = 1 end)
+ row:connect_signal("mouse::leave", function() kill_proccess_button.icon.opacity = 0.1 end)
+
+ kill_proccess_button:buttons(
+ awful.util.table.join( awful.button({}, 1, function()
+ row:set_bg('#ff0000')
+ awful.spawn.with_shell('kill -9 ' .. pid)
+ end) ) )
+ end
- process_rows[j] = row
+ awful.tooltip {
+ objects = { row },
+ mode = 'outside',
+ preferred_positions = {'bottom'},
+ timer_function = function()
+ local text = cmd
+ if process_info_max_length > 0 and text:len() > process_info_max_length then
+ text = text:sub(0, process_info_max_length - 3) .. '...'
+ end
+
+ return text
+ :gsub('%s%-', '\n\t-') -- put arguments on a new line
+ :gsub(':/', '\n\t\t:/') -- java classpath uses : to separate jars
+ end,
+ }
+
+ process_rows[j] = row
+
+ j = j + 1
+ end
- j = j + 1
end
-
end
- end
- popup:setup {
- {
- cpu_rows,
+ popup:setup {
{
- orientation = 'horizontal',
- forced_height = 15,
- color = beautiful.bg_focus,
- widget = wibox.widget.separator
+ cpu_rows,
+ {
+ orientation = 'horizontal',
+ forced_height = 15,
+ color = beautiful.bg_focus,
+ widget = wibox.widget.separator
+ },
+ create_process_header{with_action_column = enable_kill_button},
+ process_rows,
+ layout = wibox.layout.fixed.vertical,
},
- create_process_header{with_action_column = enable_kill_button},
- process_rows,
- layout = wibox.layout.fixed.vertical,
- },
- margins = 8,
- widget = wibox.container.margin
- }
- end,
- cpugraph_widget
- )
+ margins = 8,
+ widget = wibox.container.margin
+ }
+ end)
+ end)
return cpu_widget
end