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freebsd memory clean ups and correct calculation

This commit is contained in:
mutlusun 2018-03-10 12:54:05 +01:00 committed by Andreas Geisenhainer
parent 57bab3542b
commit 0280ac2243
2 changed files with 20 additions and 22 deletions
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5
README.md
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@ -323,9 +323,8 @@ Supported platforms: Linux, FreeBSD.
total system memory, 4th as free memory, 5th as swap usage in percent, 6th
as swap usage, 7th as total system swap, 8th as free swap and 9th as
memory usage with buffers and cache
* FreeBSD: see above, but 10th value as memory usage with buffers and cache
as percent and 11th value as wired memory (memory used by kernel) is
reported
* FreeBSD: see above, but 9th value is not returned (always `-1`) and there
is a 10th value giving wired memory
**vicious.widgets.mpd**

37
widgets/mem_freebsd.lua
View File

@ -16,6 +16,7 @@ local function worker(format)
local vm_stats = helpers.sysctl_table("vm.stats.vm")
local _mem = { buf = {}, total = nil }
-- Get memory space in bytes
_mem.total = tonumber(vm_stats.v_page_count) * pagesize
_mem.buf.f = tonumber(vm_stats.v_free_count) * pagesize
_mem.buf.a = tonumber(vm_stats.v_active_count) * pagesize
@ -23,35 +24,33 @@ local function worker(format)
_mem.buf.c = tonumber(vm_stats.v_cache_count) * pagesize
_mem.buf.w = tonumber(vm_stats.v_wire_count) * pagesize
-- rework into Megabytes
_mem.total = math.floor(_mem.total/(1024*1024))
_mem.buf.f = math.floor(_mem.buf.f/(1024*1024))
_mem.buf.a = math.floor(_mem.buf.a/(1024*1024))
_mem.buf.i = math.floor(_mem.buf.i/(1024*1024))
_mem.buf.c = math.floor(_mem.buf.c/(1024*1024))
_mem.buf.w = math.floor(_mem.buf.w/(1024*1024))
-- Rework into megabytes
_mem.total = math.floor(_mem.total/1048576)
_mem.buf.f = math.floor(_mem.buf.f/1048576)
_mem.buf.a = math.floor(_mem.buf.a/1048576)
_mem.buf.i = math.floor(_mem.buf.i/1048576)
_mem.buf.c = math.floor(_mem.buf.c/1048576)
_mem.buf.w = math.floor(_mem.buf.w/1048576)
-- Calculate memory percentage
_mem.free = _mem.buf.f + _mem.buf.c
_mem.inuse = _mem.buf.a + _mem.buf.i
_mem.free = _mem.buf.f + _mem.buf.c + _mem.buf.i
_mem.inuse = _mem.total - _mem.free
_mem.wire = _mem.buf.w
_mem.bcuse = _mem.total - _mem.buf.f
_mem.usep = math.floor(_mem.inuse / _mem.total * 100)
_mem.inusep= math.floor(_mem.inuse / _mem.total * 100)
_mem.buffp = math.floor(_mem.bcuse / _mem.total * 100)
_mem.wirep = math.floor(_mem.wire / _mem.total * 100)
-- Get swap states
local vm = helpers.sysctl_table("vm")
local vm_swap_total = tonumber(helpers.sysctl("vm.swap_total"))
local vm_swap_enabled = tonumber(helpers.sysctl("vm.swap_enabled"))
local _swp = { buf = {}, total = nil }
if tonumber(vm.swap_enabled) == 1 and tonumber(vm.swap_total) > 0 then
-- Get swap space
_swp.total = tonumber(vm.swap_total)
if vm_swap_enabled == 1 and vm_swap_total > 0 then
-- Get swap space in bytes
_swp.total = vm_swap_total
_swp.buf.f = _swp.total - tonumber(vm_stats.v_swapin)
-- Rework into megabytes
_swp.total = math.floor(_swp.total/(1024*1024))
_swp.buf.f = math.floor(_swp.buf.f/(1024*1024))
_swp.total = math.floor(_swp.total/1048576)
_swp.buf.f = math.floor(_swp.buf.f/1048576)
-- Calculate percentage
_swp.inuse = _swp.total - _swp.buf.f
_swp.usep = math.floor(_swp.inuse / _swp.total * 100)
@ -64,7 +63,7 @@ local function worker(format)
return { _mem.usep, _mem.inuse, _mem.total, _mem.free,
_swp.usep, _swp.inuse, _swp.total, _swp.buf.f,
_mem.bcuse, _mem.buffp, _mem.wirep }
-1, _mem.wire }
end
return setmetatable(mem_freebsd, { __call = function(_, ...) return worker(...) end })