topic Why MFX encode/decode usage stay at 0%? in Intel® Graphics Performance Analyzers (Intel® GPA)

Why MFX encode/decode usage stay at 0%?

yiling_w_1 — Wed, 02 Dec 2015 06:17:25 GMT

GPA shows the MFX encode/decode usage stay at 0% while running intel media SDK encode/decode sample on skylake platform.

Pls see the attachment for detailed information.

Hi Yiling,

Seth_S_Intel — Fri, 04 Dec 2015 02:08:19 GMT

Hi Yiling,

Sorry that the MFX decode/encode metric is not showing up for you.

Are you trying to view the metric with system analyzer or the HUD? Are you using "analyze application" or using the automatic detection to find the application?

While you are getting back to me about that, I will test a couple things on my end to see if I can reproduce this issue.

Best,

Seth

attached picture shows the

yiling_w_1 — Fri, 04 Dec 2015 07:50:51 GMT

attached picture shows the test result in analyzer tool.

the symptom is easy to duplicate in skylake platform.

Hi Seth:

yiling_w_1 — Tue, 08 Dec 2015 08:51:24 GMT

Hi Seth: You can duplicate this issue as the following steps: （1）Open the GPA tool （2）Run intel media SDK sample,the command line of encode/decode as following: sample_decode h265 -i 1_CrowdRun_1080p50.265 -hw -d3d11 -f 60 -p 33a61c0b4c27454ca8d85dde757c6f8e -wall 2 2 1 0 1 100 sample_encode h265 -i 1_CrowdRun_1080p50.yuv -o 1_CrowdRun_1080p50.265 -hw -d3d11 -w 1920 -h 1080 -b 2000 -f 60 -u speed -p 6fadc791a0c2eb479ab6dcd5ea9da347 （3）in this process,you would see the EU Engine usage get high but MFX encode/decode usage allways keep on 0%

Hi Yiling,

Seth_S_Intel — Tue, 08 Dec 2015 16:18:56 GMT

Hi Yiling,

Thanks for the detailed reproduction steps. I am working with another engineer on the GPA on this. I'll keep you up to date on the status.

Best,

Seth

Hi Yiling,

Seth_S_Intel — Wed, 06 Jan 2016 19:21:31 GMT

Hi Yiling,

We just released a new version of GPA that had some media fixes in it. Could you please try the new version of GPA (2015 R4)?

Let me know if you are still seeing zero!

Best,

Seth

Hi Yiling,

Seth_S_Intel — Tue, 03 May 2016 02:18:16 GMT

Hi Yiling,

We found out that this is an issue when rendering with DX11, if you use the DX9 render path you should be able to see metrics. A fix is currently in progress. I'll post back here when the issue has been resolved

Best,

Seth

Hi Seth, has there been any

yiling_w_1 — Fri, 03 Jun 2016 09:04:52 GMT

Hi Seth, has there been any progress?

as you say, i try it using D3D to decode,but get same reslut.

command line:

sample_decode h265 -i 3_CrowdRun_1080p50_speed.h265 -p 33a61c0b4c27454ca8d85dde757c6f8e -hw -d3d -f 60 -wall 2 1 1 0 1 100000

Hi Yiling,

Seth_S_Intel — Fri, 03 Jun 2016 15:35:05 GMT

Hi Yiling,

Using the GPA 2016 R1 version I am not able to reproduce this issue using the -d3d command. Are you still using 15.3 or have you upgraded?

Seth

Hi Seth,

yiling_w_1 — Mon, 06 Jun 2016 02:49:25 GMT

Hi Seth,

details as the attached pictures,you can duplicate this issue using following command line:

sample_decode h265 -i 1_CrowdRun_1080p50_speed.h265 -p 33a61c0b4c27454ca8d85dde757c6f8e -hw -d3d -f 60 -wall 2 1 1 0 1 100000

Hi,

Carl_P_ — Mon, 20 Jun 2016 07:03:05 GMT

Hi,

Has this been resolved? I am also seeing this problem and I am running GPA 2016 R1 and Intel Media SDK R2.

sample_decode.exe h264 -i 720p.h264 -o amp.yuv -hw -d3d shows 0.0 % decode usage

sample_decode.exe h264 -i 720p.h264 -o amp.yuv -hw -d3d11 shows 0.0 % decode usage

MFX Engine Usage goes up some percentage but decode is always zero.

CPU info:

Intel(R) HD Graphics 530
Driver Version: 20.19.15.4444
Operating System: Windows* 10 Pro (10.0.10586)
Physical Memory: 16168 MB
Vendor ID: 8086
Device ID: 1912
Device Revision: 06
Video BIOS: 1024.3

// Carl

Hi Carl, Yiling,

Seth_S_Intel — Tue, 21 Jun 2016 04:14:55 GMT

Hi Carl, Yiling,

I'm sorry but this has still not been resolved. Engineering is still working on a solution, but let me see what I can do to expedite the process.

Thank you for your patience!

Best,

Seth