[Vm-dev] OS X Mavericks & cog tickers
John McIntosh
johnmci at smalltalkconsulting.com
Thu Oct 24 23:43:17 UTC 2013
On Thu, Oct 24, 2013 at 7:38 PM, tim Rowledge <tim at rowledge.org> wrote:
>
>
> On 24-10-2013, at 4:34 PM, Igor Stasenko <siguctua at gmail.com> wrote:
> >
> >
> > (e) Cog uses heartbeat timer to interrupt interpreter at regular time
> periods
> > what can be done, i think it to suppress heartbeat, during
> relinquishProcessorForMicroseconds execution.
> > but that won't buy much, unless we increase the time period to sleep to
> be times larger than heartbeat cycle (both are 1ms).
>
> If I understood, the timer coalescing can push timers around to produce
> spurts of activity followed by quiescence; this results in better overall
> power performance. It *might* cause problems with a high-frequency
> heartbeat.
>
You pick the "drain my battery real fast" option.... Also in the past known
as "higher performance" to remove the delay in the morphic polling loop.
>
>
> tim
> --
> tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
> The problem with the gene pool is that there is no lifeguard.
>
>
>
--
===========================================================================
John M. McIntosh <johnmci at smalltalkconsulting.com>
Corporate Smalltalk Consulting Ltd. Twitter: squeaker68882
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