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luci-app-statistics: cpufreq: changes in data structure

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Collectd 5.9.0 changed the data structure of the cpufreq plugin:
CPU cores are now handled as separate plugin instances.

There are also new data items per core:
 * time spent at each frequency
 * amount of frequency transitions

Enable these new data items, but initially hide them behind
a new config option "ExtraItems" (default: disabled), as
the amount of graphs in multi-core systems could be rather large.

Note that the frequencies are not (yet) sorted, so the
information value of the time-spent graph is semi-random.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
(cherry picked from commit e6f30bb7f3)
This commit is contained in:
Hannu Nyman 2019-07-30 20:47:02 +03:00
parent c0057ae7a2
commit dd908ced91
2 changed files with 46 additions and 9 deletions
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6
applications/luci-app-statistics/luasrc/model/cbi/luci_statistics/cpufreq.lua
View file

@ -11,4 +11,10 @@ s = m:section( NamedSection, "collectd_cpufreq", "luci_statistics" )
enable = s:option( Flag, "enable", translate("Enable this plugin") )
enable.default = 0
-- collectd_cpufreq.extraitems
extraitems = s:option( Flag, "ExtraItems", translate("Extra items"), translate("More details about frequency usage and transitions"))
extraitems.default = "0"
extraitems.optional = true
extraitems:depends( "enable", 1 )
return m

49
applications/luci-app-statistics/luasrc/statistics/rrdtool/definitions/cpufreq.lua
View file

@ -2,28 +2,59 @@
module("luci.statistics.rrdtool.definitions.cpufreq",package.seeall)
local uci = require("luci.model.uci").cursor()
local extraitems = uci:get("luci_statistics", "collectd_cpufreq", "ExtraItems") or nil
function item()
return luci.i18n.translate("CPU Frequency")
end
function rrdargs( graph, plugin, plugin_instance, dtype )
return {
title = "%H: Processor frequency",
local cpufreq = {
title = "%H: Processor frequency - core %pi",
alt_autoscale = true,
vlabel = "Frequency (Hz)",
number_format = "%3.2lf%s",
data = {
sources = {
cpufreq = { "" }
},
types = {"cpufreq" },
options = {
cpufreq_0 = { color = "ff0000", title = "Core 0", noarea=true, overlay=true },
cpufreq_1 = { color = "0000ff", title = "Core 1", noarea=true, overlay=true },
cpufreq_2 = { color = "00ff00", title = "Core 2", noarea=true, overlay=true },
cpufreq_3 = { color = "00ffff", title = "Core 3", noarea=true, overlay=true }
cpufreq = { color = "ff0000", title = "Frequency" },
}
}
}
if extraitems then
local transitions = {
title = "%H: Frequency transitions - core %pi",
alt_autoscale = true,
vlabel = "Transitions",
number_format = "%3.2lf%s",
data = {
types = { "transitions" },
options = {
transitions = { color = "0000ff", title = "Transitions", noarea=true },
}
}
}
local percentage = {
title = "%H: Frequency distribution - core %pi",
alt_autoscale = true,
vlabel = "Frequency (Hz)",
number_format = "%5.2lf%%",
data = {
types = { "percent" },
options = {
percent = { title = "Frequency %di" },
}
}
}
return { cpufreq, transitions, percentage }
else
return { cpufreq }
end
end