28 minutes ago, willy647 said:

I have an i7 7700K (4 cores + HT) and not using any AM .  Looking at the resource monitor (perfmon.exe)  I noticed that when the sim is loading scenery, it uses all 8 cores. On my setup, disabling HT makes it noticeable slower and produces stutter in flight. Just to show that every system is different. Its a matter of try and error

 

That behaviour is a little bit strange, but as you said every system with its sim-configuration is very different.
As you certainly know 4 of these 8 cores that you see in the task-manager are only virtually (with HT it´s actually all 8 of them). These 8 cores still are limited to 4 physical units. The true benefit for a program is very very tiny even if it already has been optimized for multithreading systems. Needless to say that P3D with its old engine has not yet been optimized for HT-environments.

So in most cases what you get when using HT with older non-HT-optimized software like P3D (or FSX) is a significantly raised number of threads with absolutely no positive effects. Each one of these additional threads needs to address memory what in the end simply leads to higher VAS consumption without any positive performance effect.

If I activate HT on my system especially while flying or taxiing through dense areas in an high-end aircraft VAS consumption raises for approximately 500MB caused by the additional threads giving me absolutely no performance gain.

If I got stutters with HT disabled I´d try to solve that by testing things like disabling/enabling VSync/Triplebuffer P3D-internal or external and/or an external(!) fps-limiter like Nvidia inspector setting limits to 20, 30 or 60 fps for example.

Left the 376.33 and running here 381.89 and happy :-)

Hello everyone,

I'm using the latest driver 381.89. Using PMDG 777 from Dubai OMDB to Los Angeles KLAX, during ~15 hours cruising I lost about 300MB of memory and it stable all the way until go into Los area.

I don't think that is a leak, it's just loading as I fly along and probably also because I activate all of my sceneries/airports.

Happy with it so far.
Cheers,
Hoang Le

Hi Hoang,

Please advise if you were able to test as follows (from your PMDG 777 memory leak thread)

 

 

Regards,

Mario

 

1 hour ago, mario340500 said:

Hi Hoang,

Please advise if you were able to test as follows (from your PMDG 777 memory leak thread)

 

 

Regards,

Mario

 

I will do it now and will report in that thread.

Cheers,
Hoang Le

7 hours ago, Hoang said:

Hello everyone,

I'm using the latest driver 381.89. Using PMDG 777 from Dubai OMDB to Los Angeles KLAX, during ~15 hours cruising I lost about 300MB of memory and it stable all the way until go into Los area.

I don't think that is a leak, it's just loading as I fly along and probably also because I activate all of my sceneries/airports.

Happy with it so far.
Cheers,
Hoang Le

Have you tried 381.65 instead of 381.89?
Although that newest 381.89 is a big improvement compared to older versions it´s slightly worse than 381.65. That´s definitely the case on my system.

I bet 381.65 won´t even let you loose that 300MB you mentioned in your post. Try it out...

6 hours ago, Schlotterknie said:

Have you tried 381.65 instead of 381.89?
Although that newest 381.89 is a big improvement compared to older versions it´s slightly worse than 381.65. That´s definitely the case on my system.

I bet 381.65 won´t even let you loose that 300MB you mentioned in your post. Try it out...

Hi,

I have tried 381.65 but I didn't test this long haul flight with that driver so I don't know how it behaves. I will test it at later time. I activate all my airports and sceneries so I expect it will decrease as I fly along, 300MB is acceptable for me because with that long 16 hours flight, I still have 500MB left after park at the gate at FSDT KLAX. Much better than I expected.

My set up can handle PMDG aircrafts with almost any scenario/route without VAS issue (of course with the sliders that I set right now), it's the FSLabs A320x that sometimes causing me trouble, but I only fly it on short flights so dropping during long flight won't affect it AFAIK.

Additional information, I test memory leak with every driver that I install with basic configuration (PMDG/FSLabs A320x at the gate, no AI, no weather for many hours). None of them shows a single leak, so the leaking issue must be from other factors.

Cheers,

Hoang Le

Since we're all over the place on this and moving on to newer drivers, I've edited the name of the thread.

 

Vic

For me not only fixed the leak but improved the way it manage the VAS !
this was on a 10 hour flight from KDFW (Blueprint) to SCEL (LatinVFR) on a PMDG 777 & Active Sky
as you can see I started with almost 3500 M used and got almost 2,800 M @  36,000  ft

1 hour ago, alexcunille said:

For me not only fixed the leak but improved the way it manage the VAS !
this was on a 10 hour flight from KDFW (Blueprint) to SCEL (LatinVFR) on a PMDG 777 & Active Sky
as you can see I started with almost 3500 M used and got almost 2,800 M @  36,000  ft

What program is that you're using to monitor VAS?

Alex

49 minutes ago, Chapstick said:

What program is that you're using to monitor VAS?

Alex

It´s called "VasoGraph"...

https://library.avsim.net/esearch.php?DLID=194151

3 hours ago, alexcunille said:

For me not only fixed the leak but improved the way it manage the VAS !
this was on a 10 hour flight from KDFW (Blueprint) to SCEL (LatinVFR) on a PMDG 777 & Active Sky
as you can see I started with almost 3500 M used and got almost 2,800 M @  36,000  ft

Is this improvement with 381.65 or 381.89 ?

35 minutes ago, mario340500 said:

Is this improvement with 381.65 or 381.89 ?

You´ll get improvement with both.
Some get better results with 381.89 others with version 381.65. My results are better with .65 but that obviously depends on your system...

I'm with .65 too and no OOMs so far

No problem with 381.89 driver...

 

PC INFORMATION :

GPU: EVGA GeForce GTX 1060 Superclocked 6GB GDDR5
Memory: 8GB 3000 MHz DDR4
Motherboard: GIGABYTE GA-Z170X Gaming G1