Messages in this thread | | | Date | Wed, 20 Mar 2002 01:17:13 -0800 | From | J Sloan <> | Subject | Re: 2.5.7 make modules_install error (oss) |
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Jaroslav Kysela wrote:
>On Tue, 19 Mar 2002, J Sloan wrote: > >>Agreed, the oss drivers should _at least_ >>be maintained as an alternative, e.g. for >>those of us who want reliable sound with >>*low latency* >> >><explanation> >>I haven't checked lately, but not too long >>ago the alsa drivers were found to be one >>of the worst sources of latency in the kernel. >></explanation> >> > >You should really take care about your words. You've not written any >technical reason to say these sentences. > Fair enough - I don't see any technical reasons why alsa *couldn't* perform as well, latency wise, as oss.
>We are not aware about any >problems against low-latency. > Some folks on this list had been doing latency profiling on their kernels during the past year (sorry, I don't remember the exact dates) and surprisingly the alsa driver was showing up as one of the top sources of latency - IIRC one possible explanation was "in-kernel mixing".
>Sure, OSS API emulation is only emulation, >so there is additional layer which can be a bit slower than simplified >native OSS drivers, but using ALSA API, we get really serious latencies >even for multichannel hardware. > Thanks for the feedback, I'll have to do some testing of my own and see what the situation is at this point - I'd be very happy to learn that my concerns are outdated and already resolved.
Joe
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