nils/gluon
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

gluon-status-page: avoid complex math

Browse Source 
This code is usually running on an embedded CPU without FPU. In
addtition to its inefficience, the algorithm is also much harder to
understand.

Replace the logarithm formula with a simple loop.
This commit is contained in:
Matthias Schiffer 2021-08-07 21:02:32 +02:00
parent dcb8738a5a
commit f2e0f7e3a8
No known key found for this signature in database
GPG Key ID: 16EF3F64CB201D9C
1 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
package/gluon-status-page/files/lib/gluon/status-page/view/status-page.html
View File

@ -66,12 +66,17 @@
local function formatBits(bits) local function formatBits(bits)
local units = {[0]='', 'k', 'M', 'G'} local units = {[0]='', 'k', 'M', 'G'}
local unit = 0
local pow = math.floor(math.log(math.max(math.abs(bits), 1)) / math.log(1000)) for i = 1, #units do
local known_pow = math.min(pow, #units) if math.abs(bits) < 1000 then
break
end
unit = i
bits = bits / 1000
end
local significand = bits/(1000^known_pow) return string.format('%g %sbit', bits, units[unit])
return string.format('%g %sbit', significand, units[known_pow])
end end
local function statistics(key, format) local function statistics(key, format)