Why libvmaf2.0 is slower than v1.3.14

[dark-light24]

I compare libvmaf2.0 and v1.3.14 with same parameters, but libvmaf2.0 is slower and fps is not correct.
Are my configuration or parameters are not correct?
And I redirect stdout and stderr to file ( >vmaf.log 2>&1), but result file is empty. How can I fix it ?
Thanks very much.

libvmaf 2.0 test:
time vmaf -w 1280 -h 720 -b 8 -p 420 -r /Users/linke01/yuv_input/vidyo1_1280x720_60.yuv -d test_1280x720.yuv -m version=vmaf_v0.6.1 --threads 4
VMAF version 2.0.0
600 frames ⠉⠙ 6.11 FPS
vmaf_v0.6.1: 89.145320

real 0m27.607s
user 1m37.711s
sys 0m1.096s

v1.3.14:
time ~/vmaf/wrapper/vmafossexec yuv420p 1280 720 /Users/linke01/yuv_input/vidyo1_1280x720_60.yuv test_1280x720.yuv ~/vmaf/model/vmaf_v0.6.1.pkl --thread 4
Start calculating VMAF score...
Exec FPS: 32.873996
VMAF score = 89.175719

real 0m18.274s
user 0m56.917s
sys 0m4.321s

[malakudi]

Check #770

[dark-light24]

Check #770

they are both threads=4，other parameters are same too.

[kylophone]

I cannot reproduce your issue. I ran the same versions with the same resolution input and parameters and got the following. The new version is both "wall-clock" faster and uses less CPU time. Are you running on x86, and have you compiled with the AVX2/AVX-512 SIMD?

vmafossexec v1.3.14

Start calculating VMAF score...
Exec FPS: 44.441161
VMAF score = 97.428043
real        13.51
user        50.08
sys          3.10
 252268544  maximum resident set size
         0  average shared memory size
         0  average unshared data size
         0  average unshared stack size
     61242  page reclaims
       104  page faults
         0  swaps
         0  block input operations
         0  block output operations
         0  messages sent
         0  messages received
         0  signals received
        13  voluntary context switches
     29519  involuntary context switches

vmaf v2.0.0

VMAF version 9f5ecc65
600 frames ⠉⠙ 17.80 FPS
vmaf_v0.6.1: 97.428043
real         8.63
user        32.91
sys          1.01
 198070272  maximum resident set size
         0  average shared memory size
         0  average unshared data size
         0  average unshared stack size
     47600  page reclaims
         0  page faults
         0  swaps
         0  block input operations
         0  block output operations
         0  messages sent
         0  messages received
         0  signals received
         0  voluntary context switches
    105973  involuntary context switches

[dark-light24]

After I download the latest code, the speed is similar as yours. (One thread test, AVX2, user time is similar as yours):

time /Users/linke01/Downloads/vmaf-master_2/libvmaf/build/tools/vmaf --reference /Users/linke01/yuv_input/vidyo1_1280x720_60.yuv --distorted test_1280x720.yuv --width 1280 --height 720 --pixel_format 420 --bitdepth 8 --model version=vmaf_v0.6.1 --threads 1
VMAF version 2.0.0
600 frames ⠉⠙ 17.54 FPS
vmaf_v0.6.1: 89.145320

real 0m34.473s
user 0m33.360s
sys 0m0.945s

But when I download the release version v2.0.0: Source code(zip) or macos-10.15-vmaf.zip
The speed is the same as before ( enable_asm=true, enable_avx512=false, my cpu just supports avx2):

time /Users/linke01/Downloads/vmaf-2.0.0/libvmaf/build/tools/vmaf --reference /Users/linke01/yuv_input/vidyo1_1280x720_60.yuv --distorted test_1280x720.yuv --width 1280 --height 720 --pixel_format 420 --bitdepth 8 --model version=vmaf_v0.6.1 --threads 1
VMAF version 2.0.0
600 frames ⠉⠙ 7.43 FPS
vmaf_v0.6.1: 89.145320

real 1m22.070s
user 1m19.948s
sys 0m1.091s

So I just need to update the code to the latest. Thanks.