Re: [linux-audio-dev] lowlatency test at linuxdevices

2003-09-19 Thread Paul Davis
An interesting historical sidenote on this came from of our programmers, who was deep in the BeOS. He told me that their timeslice was 3 msecs once everyone had 500 MHz machines. It was down to 1 msec for the never released R6 version... back in, what 1999? 2000? the sad part is that the HRT

Re: [linux-audio-dev] lowlatency test at linuxdevices

2003-09-19 Thread Vincent Touquet
On Fri, Sep 19, 2003 at 07:23:47AM -0400, Paul Davis wrote: Open source is a bit slower to move, but at least it sticks around! So true. Anyway, at least there will be a patch; the most recent one for 2.4.20 just came out. You mean: http://sourceforge.net/projects/high-res-timers/ ? I just

Re: [linux-audio-dev] lowlatency test at linuxdevices

2003-09-19 Thread Paul Davis
You mean: http://sourceforge.net/projects/high-res-timers/ ? I just stumbled on this while searching for high resolution timers on google: http://www.cs.wisc.edu/paradyn/libhrtime/ It seems old though (and probably unmaintained ?), latest patch was for 2.4.0, so I don't know if it is of more

[linux-audio-dev] lowlatency test at linuxdevices

2003-09-18 Thread Robert Jonsson
Hi, First I must admit right away, I only looked at the pretty pictures so far, but they where sufficiently nice for me to post it here ;-P. http://linuxdevices.com/articles/AT7751365763.html /Robert

Re: [linux-audio-dev] lowlatency test at linuxdevices

2003-09-18 Thread Paul Davis
http://linuxdevices.com/articles/AT7751365763.html Nice article. I hope this is not true: Embedded systems often need to poll hardware or do other tasks on a fixed schedule. POSIX timers make it easy to arrange any task to get scheduled periodically. The clock that the timer uses can be set to

Re: [linux-audio-dev] lowlatency test at linuxdevices

2003-09-18 Thread Benno Senoner
Paul Davis wrote: I hope this is not true: Embedded systems often need to poll hardware or do other tasks on a fixed schedule. POSIX timers make it easy to arrange any task to get scheduled periodically. The clock that the timer uses can be set to tick at a rate a fine as one kilohertz, so

Re: [linux-audio-dev] lowlatency test at linuxdevices

2003-09-18 Thread Michael Ost
An interesting historical sidenote on this came from of our programmers, who was deep in the BeOS. He told me that their timeslice was 3 msecs once everyone had 500 MHz machines. It was down to 1 msec for the never released R6 version... back in, what 1999? 2000? Open source is a bit slower to