Re: Patch speed problems

Uwe Domaratius wrote:
> Michael Blunck wrote:
>  > With regard to the DB Set, I doubt that. In v0.82 there´s no basic
>> difference between freight waggons. OTOH, the 194 is implemented as an
>> articulated locomotive using a callback, so it would be of interest if
>> this phenomenon would be restricted to those types of engines (all steam
>> engines w. tenders, 194, 195).
> 
> Ok, I did more testing. I started a new random game, cheated into 1955
> and bought a BR 85 (engine doesn't matter anyway as I found out) + 17
> refrigerator wagons, which is my usual train length. As soon as the
> train starts moving, CPU usage hits 100%, as long as the train window is
> open. Stopping the train or closing the window reduces the CPU load.

Thanks for the detailed report.  Now I was actually able to figure out the
problem :)

Previously, I thought I couldn't reproduce it, but upon further inspection
it was because for me it only added ~20% CPU usage which wasn't noticable.
 But with some benchmarking tools, I found out that callback 19 is called
about 5 million times per second with the train window open... just to
constantly determine whether the train window should have a refit button
or not.

Now I only check that when the train is stopped in a depot, thus
eliminating this slowdown.

Just wait for beta 2 :)

-- 
Josef Drexler

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