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pe1123

P3D not so fast NVME startup

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Hello,

 

I hope I do not start an old subject. Did a search but did not get far with it.

 

I use win10 64b and p3d v3.2 on my new pc system with a samsung 950 pro NVME ssd. I expacted that p3d would start up fast but can not find any diverance with my former normal type ssd.

 

I come from win7 and noticed that in win10 you can find a live feed of the through put of any drive. It stays low. But when I copy a lot of random data between my ssd's it uses it maximum speed.

 

So the hardware is working. Is there anyway I can let p3d use my ssd better?

 

Thanks,

Maikel Rozemeijer

The Netherlands.

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I put an Intel 750 Series 800 GB NVMe drive in a new i7-4790K build (ensuring all was configured in my UEFI, which is compatible with NVMe) expecting faster load times from P3D too, but alas the drive appears to not be the bottleneck.  Worse yet, as add-ons are added the load times becomes so long as to warrant a coffee break.  I can launch P3D, then start Charts Desktop and PFPX then create a flight in PFPX in the time P3D gets to the point where I can select the scenario to load. Then we load the scenario.

 

I don't know what the bottleneck is.  Neither the CPU or I/O is very busy during all this time so I just mark it up to one of those mysteries in life to be endured.

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Z97/Z87 does NOT have NVME drivers. You need Z170/Skylake

Who said anything about Z97/Z87.  I have a Z170 board for my i7-4790K Skylake... am I missing something?

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Who said anything about Z97/Z87.  I have a Z170 board for my i7-4790K Skylake... am I missing something?

Apparently yes you are. Skylake is a different socket than devils canyon (4790k). You cannot run the z170 chipset with a 4790k

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Apparently yes you are

 

Haha yes I am... my new box is i7-6700K.  My age is showing. Still have the 4790K and I've slept more then three times since the build. Okay, back on topic. P3D loads no faster with NVMe.

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Ok great. To get the full speed of nvme, you'll need to set It's m.2 slot to 4x. Beware, you'll lose two sata ports

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Thanks for thinking with me so far.

 

My point is that in win10 taskmanager you can see how mutch (low) data is getting through at that (live) moment.

 

When copying files between a normal and a nvme ssd I see the 500mb/sec number what is normal. When starting p3d I get only a view mb/sec whyle nvme can go up to 1500.

 

I have only fs at this drive, but maybe it is whise to install other software there and test that also.

 

Maikel.

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i have more than doubled the speed of starting p3d by not running the sim as admin... as in (run as administrator option)

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I have only fs at this drive, but maybe it is whise to install other software there and test that also.

 

The advertised speed you see is a theoretical maximum. Random read write can vary greatly. 1.5gbs a second a crazy fast.

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Thanks for thinking with me so far.

 

My point is that in win10 taskmanager you can see how mutch (low) data is getting through at that (live) moment.

 

When copying files between a normal and a nvme ssd I see the 500mb/sec number what is normal. When starting p3d I get only a view mb/sec whyle nvme can go up to 1500.

 

I have only fs at this drive, but maybe it is whise to install other software there and test that also.

 

Maikel.

 

The Windows Task manager is a great way to determine if you're i/o bound. As you observed, this is not the case with P3D. The loading operation is primarily CPU bound, and doesn't seem to be fully multi threaded either (so you won't see anywhere near 100% CPU usage).

 

I'm not even i/o bound with my budget Kingston V300 SSD. A regular hard drive will hit 100% utilization at several points during the loading process, but pretty much any SSD is fast enough to move the bottleneck to the CPU.

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