[rrd-users] Port RRDTool to Arm/Linux - Which Linux?

[Petteri Matilainen]

On 8/1/08, Mark Easton <mark63 at azurebell.co.nz> wrote:
> Hi P.M.,
>
> I saw this ...
> http://ramblingfoo.blogspot.com/2007/07/how-to-build-rrdtool-with-soft-float
> .html.
>
> Was it difficult to build RRDTool on debian/ARM?
>
> Cheers,
> Mark
>
>> -----Original Message-----
>> From: Petteri Matilainen [mailto:pmatil at gmail.com]
>> Sent: Friday, August 01, 2008 4:06 PM
>> To: Robert Easton
>> Subject: Re: [rrd-users] Port RRDTool to Arm/Linux - Which Linux?
>>
>> Robert Easton wrote:
>> > We are going to port our app to an ARM device. We are using RRDTool
>> > and RRDlib 1.3.1. I am deciding now which linux to place on this
>> > device and then will be porting my app, including RRDTool.
>> Can anyone
>> > recommend a flavour of linux that RRDTool works well with.
>> I have seen
>> > mention of floating point issues with Debian.
>> >
>> > Has anyone any advice on carrying out this port?
>> >
>> > Many thanks,
>> > Mark
>> >
>> I've been using RRDtool with debian and NSLU (ARM platform)
>> succesfully, though 1.2.x, because I haven't had time to test
>> 1.3.x. What floating point issues do you mean?
>>
>> -P.M.
>>
>

Hi Mark,

I haven't heard that soft-float thing before. From the link you
posted, it seems difficult to include it. I have once tried to set up
a cross-compiler environment but then there was cryptic configure or
make errors which I couldn't figure out. It was different toolchain
too.

Compiling RRDtool natively wasn't difficult at all. I had to disable
compiler optimizations, though because if I didn't RRDtool would take
30 minutes to run and display irrational numbers on the graphs (like
2328742376547365). That was clearly some kind of math issue
(related?). At the moment it takes about 2 minutes to draw 2 PNGs that
have one dataset each. The unit is a temperature logger which takes 2
samples every minute and draws pictures every 5 minutes.

regards,

Petteri