search

flyinghead / flycast

Flycast is a multiplatform Sega Dreamcast, Naomi, Naomi 2 and Atomiswave emulator
GNU General Public License v2.0
1.39k stars 169 forks source link

Running a game made the CPU slowdown #1569

Closed Al666v closed 1 month ago

Al666v commented 3 months ago

Please Note: This form is the minimum required information for submitting bugs.
Removing this form may lead to your issue being closed until it is completed.

Platform / OS / Hardware: Windows 10 IoT Enterprise x64

Github hash: 7d64554

Hardware: Intel i3 1005G1, Intel UHD G1, 12GB RAM

Description of the Issue

My Laptop can run flycast just fine, but recently the emu seems slowdown the CPU. I can run other emu like PCSX2 just fine but this one is just lowering the clockspeed and cant find out why.

Debugging Steps Tested

CPU already fullspeed (3,37Ghz), changing to vulkan didnt solve the problem. Even changing to OpenGL still slowdown the CPU. Lowering all settings back to native also still gives issues.

Logs Gathered


Please paste the contents of the log / logs here
You may leave this field blank if you have none.

Screenshots

Screenshot (483)

flyinghead commented 3 months ago

Flycast isn't lowering the CPU frequency. Windows is doing this, presumably because it doesn't need the full power of your CPU to run Flycast. This is a good thing.

Al666v commented 3 months ago

Flycast isn't lowering the CPU frequency. Windows is doing this, presumably because it doesn't need the full power of your CPU to run Flycast. This is a good thing.

Yeah but the game run slower than it should.

flyinghead commented 3 months ago

Can you check previous Flycast builds to see if they have the issue? If it's a regression it would be very helpful to know when it started.

Al666v commented 3 months ago

Can you check previous Flycast builds to see if they have the issue? If it's a regression it would be very helpful to know when it started.

I have tried using v2.0, and its still give me the same issue.

flyinghead commented 3 months ago

Yeah but the game run slower than it should.

What are the symptoms?

Al666v commented 3 months ago

Yeah but the game run slower than it should.

What are the symptoms?

Audio is choppy especially in Cutscene average FPS is 35-40

That's when i run it with Vulkan enabled.

flyinghead commented 3 months ago

DirectX 11 is probably the best choice for your GPU. DirectX 9 might be worth a try too. This is a very slow GPU so don't expect miracles, but it should run at decent speed with default settings.

Al666v commented 3 months ago

DirectX 11 is probably the best choice for your GPU. DirectX 9 might be worth a try too. This is a very slow GPU so don't expect miracles, but it should run at decent speed with default settings.

Also have tried both DX11 and 9 last minutes, still have issues.

Al666v commented 3 months ago

DirectX 11 is probably the best choice for your GPU. DirectX 9 might be worth a try too. This is a very slow GPU so don't expect miracles, but it should run at decent speed with default settings.

It runs great again! Actually it was my laptop's fault, the fan has stopped spinning, i though at first it was the cooling paste though i had just changed the paste few weeks ago. I've just cleaned the fan last minute and it runs at full speed again. So yeah it was my human error not checking a little deeper while cleaning. Now i know why some games just goes Power Save mode everytime i play.

nexus382 commented 2 months ago

What was happening, Was Flycast was using ALOT of power from your device, which is very low end, 2 cores, 4 threads, at 1.2 ghz, so the chipset was heating up being used to its limits, which your lack of fan, your CPU would thermal throttle almost instantly. Glad you got it working. That is why the clock speeds went down, your pc was trying to not burn its self alive lolol