Laurence Vanek wrote:
> Laurence Vanek wrote:
>> Laurence Vanek wrote:
>>> I am running FG cvs on a Fedora Core system. I have 2 GiB of RAM & a
>>> core 2 duo (E6600)cpu. The graphics card is a GeForce 7600 GS with 256
>>> megs of VRAM.
>>>
>>> After a one hour flight over the plains of Iowa, USA I checked FG memory
>>> usage & find it is retaining 1.5 GiB. Astounding!
>>>
>>> I am running some features that may be memory intensive:
>>>
>>> --geometry=1024x768
>>> --enable-distance-attenuation
>>> --shading-smooth
>>> --enable-skyblend
>>> --fog-nicest
>>> --enable-enhanced-lighting
>>>
>>> I was not running any other application in the background.
>>>
>>> I would seem this is a fairly serious issue. Has anyone else noticed this?
>>>
>>> I dont begin to pretend I understand all the elements that comprise the
>>> simulator but it would appear something is leaking or not releasing memory.
>>>
>>>
>> Continuing discussion with myself.
>>
>> Just complete 1-1/2 hour continuation of the above trip from KSPW to
>> KRST (Spencer IA to Rochester MN). Memory footprint at end of trip was
>> 523 MiB this time. Only difference was that first flight above (from
>> KSUX to KSPW) was at 3500 ft MSL, this last flight at 5500 ft MSL.
>>
>> Same features, same plane, same weather conditions, essentially same
>> terrain.
>>
>> Dont understand the big RAM usage difference.
>>
>
> Today I flew from KLSE (La Crosse, WI) to KMSN (Madison, WI). Flight
> was at 3500 ft MSL with features enabled as in my original post.
>
> After arriving in KMSN & checking FG memory I found 1.7 GiB. I have 2
> GiB installed.
>
> Shocked, I decided to repeat exact same flight again but this time
> remove --enable-skyblend from my .fgfsrc file (wild guess).
>
> Same arrival & departure runways, same route (VOR radials), same
> altitude (3500 ft MSL). Memory footprint was only 639 MiB this time.
> Weather conditions were the same.
>
> Not sure what sky-blend is supposed to do but I do not notice a visual
> difference with it removed from my .fgfsrc file.
I have one of the recent FlightGear CVS versions running and when I
start up xosview (a old gui based system info app.)"and watch the CPU I
see 100% USR+SHAR on CPU0. This machine is a Athlon-xp +2800 with 1.5G
memory with NVidia factory .run Memory usage at startup is around 2/3
(1 gig. The real problem is that it is not real time - it is jumpy,
even the prop run so slow you can count its revolutions plus it runs
forward and backwards
--
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