Messages in this thread | | | Subject | Re: 2.4.x vs 2.6.x: denormal handling and audio performance | From | Lee Revell <> | Date | Mon, 09 Aug 2004 21:00:07 -0400 |
| |
On Mon, 2004-08-09 at 15:19, Fernando Pablo Lopez-Lezcano wrote: > Hi all, I've been trying to track weird behavior I'm experiencing when > trying to use 2.6.x for "pro audio" applications and I think I have > something to report (and some questions). > > First, the environment. I'm running the Jack low latency server on top > of two different software installs on the same hardware, one is FC1 + > 2.4.26 + low latency and preemption patches, the other is FC2 + 2.6.7 > rc2-mm2 + voluntary preemption O3. They are different hard disks swapped > into the same P4 laptop. Both are running the same source code versions > of all the audio programs that I use to test (but _not_ the same > binaries, each one is built in the environment it runs on). >
Have you tried using the exact same binaries under both 2.4 and 2.6? This would rule out a compiler issue.
In case anyone thinks this is an application bug, here are some links pertaining to the P4 denormals-are-zero issue, these were at the bottom of Fernando's post:
http://gcc.gnu.org/ml/gcc/2001-07/msg02162.html http://lkml.org/lkml/2003/5/9/144
Lee
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |