[PATCH] Planner - change timestep to 2 seconds

Steve Butler kg7je at comcast.net
Sun Jun 21 15:48:53 PDT 2015


On 06/21/2015 03:23 PM, Rick Walsh wrote:
>
> On 22 Jun 2015 8:16 am, "Steve Butler" <kg7je at comcast.net 
> <mailto:kg7je at comcast.net>> wrote:
> >
> > On 06/20/2015 06:25 PM, Rick Walsh wrote:On 21 Jun 2015 11:19 am, 
> "Dirk Hohndel" <dirk at hohndel.org <mailto:dirk at hohndel.org>> wrote:
> >> >On Sat, Jun 20, 2015 at 11:17:28AM +1000, Rick Walsh wrote:
> >> > > But what about me?  I like SI units and whole decimals.  Don't 
> worry, 2 s
> >> > > timesteps fit nicely when using 10 m/s ascent rate (18 s 
> between stops).
>
snip
>
> > Also my DC records every 10s.  One of the DCs i'm looking at does 5s 
> intervals.
> >
> > How would this work comparing the pre-dive plan with the post-dive 
> profile?
> >
>
> The change has nothing to do with setting or limiting an ascent rate. 
> Currently the ascent to the next stop is done in 3 second increments. 
> If you ascend at 30ft/min (Subsurface default, which matches most DCs) 
> it should take 20s to ascend 10ft. But in 3s increments it is bumped 
> out to 21s. No huge issue but it makes the calculated plan have some 
> odd runtimes.
>
>
So that would be 10 calculations (one every 2s) between stops.  If you 
slid the other way and went every 4s then its 5 calculations up to the 
next stop.  Any concerns with snappiness (performance) on slower machines?
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