Linux 25% slower than Windows

[QS]

CPU: i7 6700

command:
sample_multi_transcode -i::h264 a.h264 -o::h264 b.h264
Ubuntu16.04.3 X64
*** session 0 PASSED (MFX_ERR_NONE) 554.268 sec, 92583 frames
Win7 X64
*** session 0 PASSED (MFX_ERR_NONE) 450.646 sec, 92583 frames

Should I change some parameters?

[Seunghyuk_P_Intel]

Hi Q.S,

There is one simple thing we can think,

• 1. There are multiple layers until decoding/ encoding happens in each OS.
  • Also, those layers are not equivalent in both OS as well.
  • Like, D3D11, D3D9, vs Libva.

Regards,

Peter.

[QS]

SEUNGHYUK P. (Intel) wrote:

Hi Q.S,

There is one simple thing we can think,

• 1. There are multiple layers until decoding/ encoding happens in each OS.
  • Also, those layers are not equivalent in both OS as well.
  • Like, D3D11, D3D9, vs Libva.

Regards,

Peter.

So the performance issus is related to libva?