Re: CALatencyLog?
Re: CALatencyLog?
- Subject: Re: CALatencyLog?
- From: Jeff Moore <email@hidden>
- Date: Tue, 14 Sep 2010 16:02:03 -0700
The latency log code was a hack up we did based on the latency tool from the system_cmds project in Darwin. We removed it mostly because we hadn't been maintaining it as well as we should have after we started using dtrace to look at most performance issues.
You may be able to recreate what you need with the old version of the CALatencyLog code you have and crossing it with a current version latency tool code in the current version of the system_cmds project.
--
Jeff Moore
Core Audio
Apple
On Sep 14, 2010, at 3:26 PM, B.J. Buchalter wrote:
> In the Core Audio PublicUtility files before XCode 3.2.x there were some tools for doing latency and kernel event tracing CALatencyLog and latency.c.
>
> They don't appear to be in the PublicUtility files with the XCode that runs on 10.6.
>
> We have code that is built using those files for debugging problems with overloads. How would one go about making that code work with the 10.6 dev tools? Can I (easily) migrate the code that shipped with Leopard forward?
>
> Why was that removed?
>
> Best regards,
>
> B.J. Buchalter
> Metric Halo
> http://www.mhlabs.com
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| | >CALatencyLog? (From: "B.J. Buchalter" <email@hidden>) |