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- Subject: Re: How do I say a = inf in Lua?
- From: "Alexander Gladysh" <agladysh@...>
- Date: Tue, 16 Dec 2008 23:58:03 +0300
On Tue, Dec 16, 2008 at 10:10 PM, Matthew Wild <mwild1@gmail.com> wrote:
> On Tue, Dec 16, 2008 at 6:47 PM, Daniel van Ham Colchete
> <daniel.colchete@gmail.com> wrote:
>> On Tue, Dec 16, 2008 at 4:18 PM, Matthew Wild <mwild1@gmail.com> wrote:
>>> http://www.lua.org/manual/5.1/manual.html#pdf-math.huge is likely what
>>> you are looking for.
>> Thank you Matthew! That answer the question really well. Thanks!
>> Thanks for the other answers too.
> It's what I love about this list so much (and Lua in fact). There are
> always so many ways to achieve something. Expect the benchmarks right
> about.... now! :)
Well, since you've asked... :-)
$ ./kbench.sh 'bench.lua infbench.lua' 1e8 2>&1 | luajit -O kbenchparse.lua
Results:
lua
-------------------------------------------------------------------
name | rel | abs s / iter = us (1e-6 s) / iter
-------------------------------------------------------------------
divide | 1.0000 | 9.30 / 100000000 = 0.093000 us
e309 | 1.0086 | 9.38 / 100000000 = 0.093800 us
huge | 1.7957 | 16.70 / 100000000 = 0.167000 us
tonumber | 5.3344 | 49.61 / 100000000 = 0.496100 us
luajit -O
-------------------------------------------------------------------
name | rel | abs s / iter = us (1e-6 s) / iter
-------------------------------------------------------------------
e309 | 1.0000 | 1.27 / 100000000 = 0.012700 us
divide | 2.0000 | 2.54 / 100000000 = 0.025400 us
huge | 2.2126 | 2.81 / 100000000 = 0.028100 us
tonumber | 22.8346 | 29.00 / 100000000 = 0.290000 us
Benchmarked code attached.
Alexander.
Attachment:
infbench.lua
Description: Binary data
