[gentoo-embedded] database in embedded linux?

[gentoo-embedded] database in embedded linux?

[Jakub Ladman]

Hi 

I have an idea to store measured data into database, until now we were 
thinking only about storing it into separate text/binary files.

May exist an SQL database which fits into embedded system with 200MHz CPU?
Low performance - low power consuption, maximum about 5MB of data will be 
used.
Maybe this is copletely wrong way ....

Thank you
Jakub Ladman
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Re: [gentoo-embedded] database in embedded linux?

[Vladimir Pouzanov]

Check SQLite (http://sqlite.org)

On 9/8/06, Jakub Ladman <ladmanj@volny.cz> wrote:
> Hi
>
> I have an idea to store measured data into database, until now we were
> thinking only about storing it into separate text/binary files.
>
> May exist an SQL database which fits into embedded system with 200MHz CPU?
> Low performance - low power consuption, maximum about 5MB of data will be
> used.
> Maybe this is copletely wrong way ....
>
> Thank you
> Jakub Ladman
> --
> gentoo-embedded@gentoo.org mailing list
>
>


-- 
Sincerely,
Vladimir "Farcaller" Pouzanov
http://www.hackndev.com
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gentoo-embedded@gentoo.org mailing list

Re: [gentoo-embedded] database in embedded linux?

[Jakub Ladman]

Dne pátek 08 září 2006 10:50 Vladimir Pouzanov napsal(a):
> Check SQLite (http://sqlite.org)
Looks fine, but seems to need glibc, i am using uclibc. 
How i find out for sure if it is or is not possible to build it against 
uclibc?

Thank you
Jakub Ladman
>
> On 9/8/06, Jakub Ladman <ladmanj@volny.cz> wrote:
> > Hi
> >
> > I have an idea to store measured data into database, until now we were
> > thinking only about storing it into separate text/binary files.
> >
> > May exist an SQL database which fits into embedded system with 200MHz
> > CPU? Low performance - low power consuption, maximum about 5MB of data
> > will be used.
> > Maybe this is copletely wrong way ....
> >
> > Thank you
> > Jakub Ladman
> > --
> > gentoo-embedded@gentoo.org mailing list
>
> --
> Sincerely,
> Vladimir "Farcaller" Pouzanov
> http://www.hackndev.com

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gentoo-embedded@gentoo.org mailing list

Re: [gentoo-embedded] database in embedded linux?

[Mike Frysinger]

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On Friday 08 September 2006 08:03, Jakub Ladman wrote:
> Dne pátek 08 září 2006 10:50 Vladimir Pouzanov napsal(a):
> > Check SQLite (http://sqlite.org)
>
> Looks fine, but seems to need glibc, i am using uclibc.
> How i find out for sure if it is or is not possible to build it against
> uclibc?

ive used sqlite on blackfin (nommu/uclibc) so i know it doesnt require 
glibc ;)
-mike

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Re: [gentoo-embedded] database in embedded linux?

[Jakub Ladman]

Hi
So, can please let me know how to build it, emerge wants to build glibc too 
like one of dependencies.

And if i am trying to build it manually, 
via ./configure --host=sh4-pc-linux-uclibc, i get error message "i have it 
here not, but it is something like "canot build build tools"
Thank you.
Jakub Ladman


Dne sobota 09 září 2006 01:24 Mike Frysinger napsal(a):
> On Friday 08 September 2006 08:03, Jakub Ladman wrote:
> > Dne pátek 08 září 2006 10:50 Vladimir Pouzanov napsal(a):
> > > Check SQLite (http://sqlite.org)
> >
> > Looks fine, but seems to need glibc, i am using uclibc.
> > How i find out for sure if it is or is not possible to build it against
> > uclibc?
>
> ive used sqlite on blackfin (nommu/uclibc) so i know it doesnt require
> glibc ;)
> -mike

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Re: [gentoo-embedded] database in embedded linux?

[Mike Frysinger]

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On Sunday 10 September 2006 08:21, Jakub Ladman wrote:
> So, can please let me know how to build it, emerge wants to build glibc too
> like one of dependencies.

no, emerge wants to install virtual/libc which by default is glibc
-mike

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Re: [gentoo-embedded] database in embedded linux?

[Jakub Ladman]

Dne pondělí 11 září 2006 04:52 Mike Frysinger napsal(a):
> On Sunday 10 September 2006 08:21, Jakub Ladman wrote:
> > So, can please let me know how to build it, emerge wants to build glibc
> > too like one of dependencies.
>
> no, emerge wants to install virtual/libc which by default is glibc
> -mike

There's no virtual/libc :-(
This is what i must create to override the default? 
How to do it to not change host system, only the embedded system?
Thank you.

Jakub Ladman

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Re: [gentoo-embedded] database in embedded linux?

[Jakub Ladman]

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Dne pondělí 11 září 2006 04:52 Mike Frysinger napsal(a):
> On Sunday 10 September 2006 08:21, Jakub Ladman wrote:
> > So, can please let me know how to build it, emerge wants to build glibc
> > too like one of dependencies.
>
> no, emerge wants to install virtual/libc which by default is glibc
> -mike


After last emerge --sync, the dependency on glibc has disappeared, but 
emergeing ends with the same error as when i am trying to build it manualy.

There is compressed config.log

Thank you
J.L.

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Re: [gentoo-embedded] database in embedded linux?

[Dario Cavallaro]

Jakub Ladman ha scritto:
> Hi 
> 
> I have an idea to store measured data into database, until now we were 
> thinking only about storing it into separate text/binary files.
> 
> May exist an SQL database which fits into embedded system with 200MHz CPU?
> Low performance - low power consuption, maximum about 5MB of data will be 
> used.
> Maybe this is copletely wrong way ....
> 
> Thank you
> Jakub Ladman

We have installed openldap on a pentium 100 with 32MB ram. We have used 
uclibc profile with kernel 2.4.x. We have no problems about 
performances. Autentication of remote machines is a little slow, but it 
works fine on a 10mbit ethernet with a hub (the hub could make 
autentication slow on a network of about 4 nodes).
  --
Saluti

Dario Cavallaro
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