1 Topic by adamkex (edited by adamkex 24-10-2017 08:18:15)

  • Thanks: 3

Topic: Very low performance in h264 files

I get very low performance in regular h264 files in both mpc-hc and mpv. h264 10-bit and hevc seem fine. I have hardware acceleration turned on.

i5 2500k @ 4.2GHz, GTX 970, Windows 10 (1709), latest SVP Pro.

My SVP index never seems to exceed over 0.7 in 1080p videos and my CPU usage seems to cap at around 60% (screenshot 1). In 480p videos my SVP index goes to around 1.3-1.5 (screenshot 2).

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Re: Very low performance in h264 files

this's strange hmm
first of all ensure that video renderer is MPC-HC is set to EVR-CP
turn off all video enhancement features in the video driver

what is the screen refresh rate? gsync / etc in use?

3 Reply by adamkex (edited by adamkex 24-10-2017 13:01:04)

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Re: Very low performance in h264 files

I mostly use mpv. I tried EVR-CP in MPC-HC and I still have problems.
I don't think I have any video enhancement features enabled in my video card.
I use 120Hz, no gsync. I tried setting it so it only doubles the frames in the video
but I still have this problem.

Edit: I solved this issue. My graphics card was in the wrong PCI-Express port.

  • MAG79
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Re: Very low performance in h264 files

> I solved this issue. My graphics card was in the wrong PCI-Express port.

So. It was PCI-E x1 mode?

5 Reply by adamkex (edited by adamkex 24-10-2017 13:12:22)

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Re: Very low performance in h264 files

MAG79 wrote:

> I solved this issue. My graphics card was in the wrong PCI-Express port.

So. It was PCI-E x1 mode?

2x. It has a setting for 4x but the main port is 16x.

Not sure what this screenshots means.

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