Why are sound ioctl calls so slow?

Kris Kennaway kris at FreeBSD.org
Wed Dec 10 12:23:14 PST 2003


On Tue, Dec 09, 2003 at 02:25:57PM -0500, Mathew Kanner wrote:

> 	My first guess would be the device is rebuilding feeder/mixer
> chains every time mpg123 changes format.  I would run the test one
> more time, disabling vchans and rate conversion.

FWIW, I see this too, without vchans enabled - this problem has
existed for a long time (over a year).  In fact it was the catalyst
for me to stop using mpg123 (in favour of madplay, which seems to be
generally better anyway).

Kris


More information about the freebsd-current mailing list