[PD] firewire is dead?

[Max]

oh really? that's interesting. The later numbers come from a Ubuntu machine which isn't set up for sound at all, so when I compare those with a os x machine and the "famous" rme drivers the numbers are still impressive.

Am 27.11.2012 um 17:47 schrieb Miller Puckette <msp at ucsd.edu>:

> If I'm reading rour post right, you're specifying 20 msec latency and getting
> about 22, which is OK, but I think you should be able to get lower latencies
> (i.e., I don't see that numbers like 21.9012 are too good to be true -
> those are typical Macintosh latencies but I think in linux you should be
> able to do much better.)
> 
> cheers
> Miller
> 
> On Tue, Nov 27, 2012 at 05:15:35PM +0100, Max wrote:
>> you are right - those numbers seem to be to good to be true. On the other hand I followed the instructions in the latency patch and don't know what could have been wrong.
>> 
>> Am 26.11.2012 um 19:04 schrieb Miller Puckette <msp at ucsd.edu>:
>> 
>>> Hmm - I'm getting latencies between 6 and 7 (Fedora 17, Core 7200, INTEL
>>> "HDA", latest Pd from git, but I think Pd 0.43 should do similar).
>>> 
>>> cheers
>>> Miller
>>> 
>>> On Mon, Nov 26, 2012 at 06:53:31PM +0100, Max wrote:
>>>> Am 26.11.2012 um 16:18 schrieb J Oliver <jaime.oliver2 at gmail.com>:
>>>> 
>>>>> Hi Max, 
>>>>> 
>>>>> Is it possible for you to test this same card in linux?
>>>>> 
>>>>> J
>>>> 
>>>> I wanted to do this, but I don't have a linux machine with firewire, so i can't test the ffado driver for the card. I wanted to try out the class compliant mode, but there is a bug in ALSA which prevents it to work. see http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg28935.html
>>>> I didn't wanted to get started recompiling the kernel for this. sorry. So in theory it should work, but only if you remove the bug in the ALSA part.
>>>> 
>>>> for the record i compared the on board intel card of the linux machine, the result is quite impressive, i don't think it can get any better:
>>>> 
>>>> /doc/7.stuff/tools/latency.pd
>>>> Sampling rate 44100 Hz, delay 20 ms Blocksize 64
>>>> Ubuntu 12.04 Intel® Core™ i3 CPU 550 @ 3.20GHz × 4
>>>> Latency HDA Intel (hardware)
>>>> 
>>>> print: 21.9012
>>>> print: 21.9037
>>>> print: 21.9063
>>>> print: 21.9088
>>>> print: 21.9114
>>>> print: 21.914
>>>> print: 21.9165
>>>> print: 21.9191
>>>> print: 21.9217
>>>> print: 21.8834
>>>> print: 21.886
>>>> print: 21.8885
>>>> print: 21.891
>>>> print: 21.8936
>>>> print: 21.8961
>>>> print: 21.8986
>>>> print: 21.9012
>>>> print: 21.9037
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