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Date: Fri, 4 Sep 2015 10:11:22 +0200 From: Richard Cochran <richardcochran@...il.com> To: "Hall, Christopher S" <christopher.s.hall@...el.com> Cc: Thomas Gleixner <tglx@...utronix.de>, "Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>, "hpa@...or.com" <hpa@...or.com>, "mingo@...hat.com" <mingo@...hat.com>, "john.stultz@...aro.org" <john.stultz@...aro.org>, "x86@...nel.org" <x86@...nel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>, "peterz@...radead.org" <peterz@...radead.org> Subject: Re: [PATCH v3 1/4] Add correlated clocksource deriving system time from an auxiliary clocksource On Thu, Sep 03, 2015 at 11:20:37PM +0000, Hall, Christopher S wrote: > In addition to the network interface, ART will be used in the audio interface as well. > We need to support the case where an audio co-processor will control the audio device. > In this case, the get_ts() function supplied by the audio driver will be very slow > (several milliseconds) and the result will be out of date by some fraction of that > amount. Why does it take milliseconds to read one audio time stamp? Thanks, Richard -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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