On Wed, Jun 20, 2007 at 10:26:31PM +0200, Tobias Oetiker wrote:
>Greetings,
>
>On the list for new rrdtool features there is also a new
>architecture independant rrd format. I have done some research
>today, and found two things.
>
>* XDR is probably NOT the solution
>
>* Rolling our own should not be all that difficult.
>
>I have created a little writeup on
>
>http://oss.oetiker.ch/rrdtool-trac/wiki/PortableRrdFormat
>
>I did only research x86, SPARC and PPC, if someone can fill in the
>blanks on Itanium, PA-RISC and MIPS, this would be great and very
PA-RISC:
$ arch
parisc64
$ gcc -o rrd_stuff.$(arch) rrd_stuff.c && file rrd_stuff.$(arch)
rrd_stuff.parisc64: ELF 32-bit MSB executable, PA-RISC version 1
(GNU/Linux), for GNU/Linux 2.6.9, dynamically linked (uses shared libs),
not stripped
$ ./rrd_stuff.$(arch)
0.000000e+00 -> 00 00 00 00 00 00 00 00
1.000000e+00 -> 3f f0 00 00 00 00 00 00
-1.000000e+00 -> bf f0 00 00 00 00 00 00
nan -> 7f f4 00 00 00 00 00 00
inf -> 7f f0 00 00 00 00 00 00
-inf -> ff f0 00 00 00 00 00 00
2.000000e+00 -> 40 00 00 00 00 00 00 00
4.000000e+00 -> 40 10 00 00 00 00 00 00
8.000000e+00 -> 40 20 00 00 00 00 00 00
1.600000e+01 -> 40 30 00 00 00 00 00 00
8.642135e+130 -> 5b 1f 2b 43 c7 c0 25 2f
IA64:
$ arch
ia64
$ gcc -o rrd_stuff.$(arch) rrd_stuff.c && file rrd_stuff.$(arch)
rrd_stuff.ia64: ELF 64-bit LSB executable, IA-64, version 1 (SYSV), for
GNU/Linux 2.6.1, dynamically linked (uses shared libs), not stripped
$ ./rrd_stuff.$(arch)
0.000000e+00 -> 00 00 00 00 00 00 00 00
1.000000e+00 -> 00 00 00 00 00 00 f0 3f
-1.000000e+00 -> 00 00 00 00 00 00 f0 bf
nan -> 00 00 00 00 00 00 f8 ff
inf -> 00 00 00 00 00 00 f0 7f
-inf -> 00 00 00 00 00 00 f0 ff
2.000000e+00 -> 00 00 00 00 00 00 00 40
4.000000e+00 -> 00 00 00 00 00 00 10 40
8.000000e+00 -> 00 00 00 00 00 00 20 40
1.600000e+01 -> 00 00 00 00 00 00 30 40
8.642135e+130 -> 2f 25 c0 c7 43 2b 1f 5b
If figures for alpha are of interrest then please let me know.
ARM figures should be collected, too, i guess.
HTH,
_______________________________________________
rrd-developers mailing list
rrd-developers@lists.oetiker.ch
https://lists.oetiker.ch/cgi-bin/listinfo/rrd-developers
