Mouse and CPU usage.

[PoisonRaven]

Hello everyone.

Well, as the title said I have a problem with my mouse, any small movement increases the cpu usage to high numbers that could reach almost 40% with fast movements. My mouse is a Corsair Katar wired and I use it with 500hz polling rate setting, tried to lower it to 125 and it helps a bit but not too much and it's awful to play with that value.

I'm using W10 and I know my PC is not great (A6 7400K, 16GB DDR3 and I use a 120GB SSD for the OS) but I don't know if such high cpu spikes are normal, I still have my older PC with W7 (Athlon X2 240 and 4GB DDR2) and tried the mouse with the same settings and the higher spikes are around 10%, I know W10 is more resources demanding but still a huge difference.

As I said lowering the polling rate helps but is not a big difference so would like to know if there's something to do.

 

[ty_ger]

Let me make the assumption that you don't have ANY Corsair mouse software installed; because if you do, you should have removed that variable before you posted this thread.
Mouse movement is interrupt-based. This means that the CPU will stop all other work on at least one thread while the mouse is moving. Your CPU has 2 threads.
I would upgrade your system.

 

[PoisonRaven]

Let me make the assumption that you don't have ANY Corsair mouse software installed; because if you do, you should have removed that variable before you posted this thread.
Mouse movement is interrupt-based. This means that the CPU will stop all other work on at least one thread while the mouse is moving. Your CPU has 2 threads.
I would upgrade your system.

I installed iCUE to make changes and deleted it but there's no difference.

I know my current system is weak but my other pc with W7 has two cores too and there's a huge difference, it hits 8-10% usage only with very fast mouse movements.

 

[Macro Device]

Spikes from 3 to 36 percent on my C2D E6750 system which is fairly similar to your 7400K. With a 125 Hz mouse!

Best way to approach this is to buy a Haswell system with some Xeon E3-1230 V3 since these are dirt cheap, support DDR3 and leagues faster in everything.

 

[Dr. Dro]

This is "normal", although it's only really an issue for you because of your terrible CPU. Some game engines act up with hyperpolling as well (1K+), "safe zone" as far as CPU impact and game engine compatibility is 125-333 Hz IMHO. High polling rates inevitably extrapolate CPU usage, so the only workaround is to reduce the polling rate. 250 Hz is twice as fast as the standard and the hit is imperceptible even in the lowest end CPUs. It's what I'd personally recommend for your use case, stay in the 250 to 333 Hz range.

 

[PoisonRaven]

This is "normal", although it's only really an issue for you because of your terrible CPU. Some game engines act up with hyperpolling as well (1K+), "safe zone" as far as CPU impact and game engine compatibility is 125-333 Hz IMHO. High polling rates inevitably extrapolate CPU usage, so the only workaround is to reduce the polling rate. 250 Hz is twice as fast as the standard and the hit is imperceptible even in the lowest end CPUs. It's what I'd personally recommend for your use case, stay in the 250 to 333 Hz range.

Well I still have around 25% usage with 125hz, my 7400 is terrible but the X2 240 of my other pc with W7 is even worst and the higher spikes are 10% using 500hz, even using 1k still around that number so I was asking about the huge difference with W10.

 

[Dr. Dro]

Well I still have around 25% usage with 125hz, my 7400 is terrible but the X2 240 of my other pc with W7 is even worst and the higher spikes are 10% using 500hz, even using 1k still around that number so I was asking about the huge difference with W10.

Given it's a polling related issue, it's almost certain that this is because of system timers. Windows 7 no doubt works differently from 10 there. It's really complicated. But I'd keep the polling rate low on that system.

 

[PoisonRaven]

Given it's a polling related issue, it's almost certain that this is because of system timers. Windows 7 no doubt works differently from 10 there. It's really complicated. But I'd keep the polling rate low on that system.

Ok thanks, I'm trying to get a better system soon and will try to use 250hz till then.

Sorry for the off topic but don't want to create a new post for this, task manager shows 2 logical processors but only 1 core for my 7400, is that correct?.

 

[Macro Device]

task manager shows 2 logical processors but only 1 core for my 7400, is that correct?.

Basically yes, FM2+ and Bulldozer AM3+ CPUs are built modular, 2 threads apiece. There had been several lawsuits against AMD for false advertisement (FX-8150, for example, was marketed as an 8-core CPU despite being a 4-module 8-thread CPU).

 

[Dr. Dro]

Ok thanks, I'm trying to get a better system soon and will try to use 250hz till then.

Sorry for the off topic but don't want to create a new post for this, task manager shows 2 logical processors but only 1 core for my 7400, is that correct?.

It's a bit complicated. It has two cores, but only one floating point unit. It's a single Steamroller compute module. Windows will detect 1 core 2 threads for this reason, and address it similarly to a single core, dual thread CPU (like an old Pentium 4).

https://www.cpu-world.com/CPUs/Bulldozer/AMD-A6-Series%20A6-7400K.html

 

[RaceT3ch]

This is expected behaviour from a weak CPU with a 2C/2T configuration. Your mouse is basically loading an entire core on your CPU. The only possible work around is to buy a better system, or to change the CPU with something that contains more cores or has a higher clock speed.

 

[DaemonForce]

All of that is normal behavior on an early Athlon 64 that clocks in ~1050pts.
My single core 2650e barely squeaks 275 on the multithreaded chart.

I'm not sure what you were expecting out of a high powered antique.
Mouse movement stress is difficult over RDP.
Just keep any CPU and memory vampires out of the background.

 

[oobymach]

FM2+ cpu should be able to swap it for a quad core for dirt cheap, your cpu has a 65w tdp so any 65w FM2+ cpu will work

"Fm2 " CPU 65W for sale | eBay

Get the best deals for "Fm2 " CPU 65W at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!

www.ebay.com