Re: [linux-audio-dev] Looking for some PR stuff related to Jack

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Subject: Re: [linux-audio-dev] Looking for some PR stuff related to Jack
From: Paul Davis (paul_AT_linuxaudiosystems.com)
Date: Sat Nov 09 2002 - 17:20:47 EET

>1.) What is the lowest stable achievable latency with the current stable
>(2.4) branch of the kernel (with ll and preempt patches) using Alsa on a
>modern system (i.e. at least 1GHz machine)?

total latency: 2.3ms on a dual PII-450MHz, 2.4.19+ll, SCSI, matrox
  g400 video adapter, SCHED_FIFO+mlockall required.

>2.) What is the lowest stable achievable latency utilizing
>
>app<--->jack<--->audio hw
>
>kind of setup on a modern system (i.e. at least 1GHz machine) with the
>current stable (2.4) branch of the kernel (with ll and preempt patches)
>using Alsa?

i can't reliably do better than about 10ms right now on the same setup
as listed above. i am investigating the reasons for this.

--p

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