High DPC due to Nvidia Kernel Driver?

[Tephnos]

Ouch, that looks awful.

 

[humbug]

This after turning off 8GadgetPack (Sidebar for win 8 / 10)

A bit better.

Spoiler

After turning off ShadowPlay

Pretty much the same

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After resetting my GPU overclock to 0

Now DX looks normal, Nvidia GPU Driver still not great.

Spoiler

 

[Tephnos]

Interesting results.

Hadn't overclocked my GPU so that wouldn't do anything for me.

 

[humbug]

It was my GPU Memory.

I ran the GPU core again at stock (1354Mhz) Memory at 3500, DX Driver reached 587, well in the green, even Pagefaults was only about 1000, also in the green.

Core to 1400Mhz, Nothing changed
Core to 1450Mhz, Nothing changed
Core to 1500Mhz, Nothing changed
Memory to 3700Mhz, before i even started Firestrike... on setting the Memory Pagefaults shot up to fill the bar.
I ran Firstrike, once done the DX result shot up to 2000 again.

While i get no visible problems with the GPU memory at 3800Mhz its clearly not stable, its error correcting.
So now leave the GPU Memory at stock, it offers very little in extra performance anyway.

 

[Tephnos]

Again interesting, as I've left all my clocks at stock.

High hard pagefaults doesn't mean much though, just that it had to fetch data from a HDD instead of memory, which will happen all the time.

How's your DPC execution time now? 600?

 

[humbug]

Again interesting, as I've left all my clocks at stock.

High hard pagefaults doesn't mean much though, just that it had to fetch data from a HDD instead of memory, which will happen all the time.

How's your DPC execution time now? 600?

No, it remained exactly the same at about <1500.

I don't know why that is, i'm assuming its normal, unless someone with a Maxwell card gets significantly less?

 

[Tephnos]

No, it remained exactly the same at about <1500.

I don't know why that is, i'm assuming its normal, unless someone with a Maxwell card gets significantly less?

Windows 8.1?

Pretty interesting there. I do know latency is higher on nvidia cards because of true multithreading, the tradeoff between deferring less important processing to idle cores over a bit of extra latency.

I have seen some people who have <1ms. However, I can't confirm if they were playing games or stress testing. If it was on idle just desktop browsing it wouldn't be much of a surprise. Is yours only 1500ish when stressing?

 

[humbug]

Windows 8.1?

Pretty interesting there. I do know latency is higher on nvidia cards because of true multithreading, the tradeoff between deferring less important processing to idle cores over a bit of extra latency.

I have seen some people who have <1ms. However, I can't confirm if they were playing games or stress testing. If it was on idle just desktop browsing it wouldn't be much of a surprise. Is yours only 1500ish when stressing?

Windows 10, yeah, its practically nothing at idle, it only goes up that high if the GPU is loaded.

 

[Tephnos]

Windows 10, yeah, its practically nothing at idle, it only goes up that high if the GPU is loaded.

Any actual symptoms like my audio skipping, or is this just annoying to you?

 

[humbug]

Any actual symptoms like my audio skipping, or is this just annoying to you?

As far as i can tell i don't have any problems with my audio, but like anyone i guess i like to have a healthy system and clearly something was not right with it that i didn't know about until i ran this.

Now i don't run a GPU Memory overclock.

My DCP i think? Is running about the same as yours, so maybe its nothing to do with it?
A problem elsewhere?

 

[Tephnos]

Well, as per the first post I did have some big interrupts, which were probably the main cause as that completely shuts down everything.

Since changing GPU I've had a big reduction, done nothing else (went back to Win 8.1 as well though, Win10 is garbage for drivers).