Forcing To Use Full CPU Speed

[NMs_]

Hello all,


I'm using Staxrip X264 encoder, No matter what, it only uses 25~30% of CPU usage. Normally, it takes about 15 mins or more.

Is there anyway to force it to use full CPU speed? to speed up the encoding?

[LigH.de]

The x264 encoder uses as much CPU as possible; but there may be reasons why it has to wait for the video to be delivered from AviSynth. There are several possible reasons for bottlenecks. Without knowing your script we can't tell you if it possibly uses a slow video filter running in only one thread, which could possibly be accelerated by multi-threading, or if even some hardware component may be the slowest part in the chain (e.g. processing uncompressed video mostly needs to wait for the harddisk).

[NMs_]

The x264 encoder uses as much CPU as possible; but there may be reasons why it has to wait for the video to be delivered from AviSynth. There are several possible reasons for bottlenecks. Without knowing your script we can't tell you if it possibly uses a slow video filter running in only one thread, which could possibly be accelerated by multi-threading, or if even some hardware component may be the slowest part in the chain (e.g. processing uncompressed video mostly needs to wait for the harddisk).

Thanks you for your reply,

Sorry for being rookie, it seems this script is long, and I couldn't just filter what's important for my case since I'm not sure what they are:

 [Source]
Automatic = # can be configured at: Tools > Settings > Source Filters
AviSource = AviSource("C:\Users\xxx\Desktop\MyFolder\Series.E03.mp4", Audio = False)
DGSource = DGSource("C:\Users\xxx\Desktop\MyFolder\Series.E03.mp4")
DGSourceIM = DGSourceIM("C:\Users\xxx\Desktop\MyFolder\Series.E03.mp4")
DirectShowSource = DirectShowSource("C:\Users\xxx\Desktop\MyFolder\Series.E03.mp4", audio = False)
DSS2 = DSS2("C:\Users\xxx\Desktop\MyFolder\Series.E03.mp4")

FFVideoSource =
    FFVideoSource("C:\Users\xxx\Desktop\MyFolder\Series.E03.mp4", colorspace = "YV12", \
                  cachefile = "C:\Users\xxx\Desktop\MyFolder\Series.E03_temp\Series.E03.ffindex")

LSMASHVideoSource = LSMASHVideoSource("C:\Users\xxx\Desktop\MyFolder\Series.E03.mp4", format = "YUV420P8")
LWLibavVideoSource = LWLibavVideoSource("C:\Users\xxx\Desktop\MyFolder\Series.E03.mp4", format = "YUV420P8")
Manual = # shows the filter selection dialog
MPEG2Source = MPEG2Source("C:\Users\xxx\Desktop\MyFolder\Series.E03.mp4")

[Misc]
AssumeFPS Source File = AssumeFPS(29.970)
AssumeFPS... = AssumeFPS($select:msg:Select a frame rate;24000/1001|24000, 1001;24;25;30000/1001|30000, 1001;30;50;60000/1001|60000, 1001;60$)
aWarpSharp2 = aWarpSharp2(thresh = 128, blur = 2, type = 0, depth = 16, chroma = 4)
checkmate = checkmate()
Clense = Clense()
f3kdb = f3kdb()
FineSharp = FineSharp(mode=1, sstr=2, cstr=0.8, xstr=0.19, lstr=1.49, pstr=1.272, ldmp=2.1)
FrameRateConverter = FrameRateConverter()
LSFmod = LSFmod(strength = 100)
MSharpen = MSharpen(threshold = 10, strength = 100, highq = true, mask = false)
Prefetch(4) = Prefetch(4)
TComb = TComb(mode = 0, fthreshL = 255, othreshL = 255)
Tweak = Tweak(hue = 0, sat = 1, bright = 0, cont = 1, coring = true)
UnDot = UnDot()

[Field]
EEDI2 = EEDI2()
FieldDeinterlace = FieldDeinterlace()

IVTC =
    Telecide(guide = 1)
    Decimate()

nnedi3 = nnedi3(field = 1)
QTGMC... = QTGMC(Preset = "$select:msg:Select a preset.;Draft;Ultra Fast;Super Fast;Very Fast;Faster;Fast;Medium;Slow;Slower;Very Slow;Placebo$")
SangNom2 = SangNom2()
SelectEven = SelectEven()
SelectOdd = SelectOdd()
TDeint = TDeint()
vinverse2 = vinverse2()
yadifmod2 = yadifmod2()

[Resize]
Hardware Encoder = # hardware encoder resizes
Resize MT... = $select:BicubicResizeMT;BilinearResizeMT;BlackmanResizeMT;GaussResizeMT;Lanczos4ResizeMT;LanczosResizeMT;PointResizeMT;SincResizeMT;Spline16ResizeMT;Spline36ResizeMT;Spline64ResizeMT$(1280, 720, prefetch = 4)
Resize... = $select:BicubicResize;BilinearResize;BlackmanResize;GaussResize;Lanczos4Resize;LanczosResize;PointResize;SincResize;Spline16Resize;Spline36Resize;Spline64Resize$(1280, 720)

[Crop]
Crop = Crop(0, 0, -0, -0)
Hardware Encoder = # hardware encoder crops

[Noise]
FFT3DFilter = FFT3DFilter()
FluxSmoothST = FluxSmoothST(temporal_threshold = 8, spatial_threshold = 8)
FluxSmoothT = FluxSmoothT(temporal_threshold = 8)
KNLMeansCL | Spatio-Temporal Light = KNLMeansCL(D = 1, A = 1, h = 2)
KNLMeansCL | Spatio-Temporal Medium = KNLMeansCL(D = 1, A = 1, h = 4)
KNLMeansCL | Spatio-Temporal Strong = KNLMeansCL(D = 1, A = 1, h = 8)
mClean = mClean()
RemoveGrain = RemoveGrain()
SMDegrain = SMDegrain(tr = 2, thSAD = 250, contrasharp = false, refinemotion = true, lsb = false)

[LigH.de]

I don't know what you posted, but it's no valid AviSynth script, rather a snippet collection. Is that the list of available filter presets? It is certainly not the script processing your actual video source.

[pandy]

You can process 2 or more movies at same time. Or stop using single thread application to process video data feed to x264/5.

[NMs_]

I don't know what you posted, but it's no valid AviSynth script, rather a snippet collection. Is that the list of available filter presets? It is certainly not the script processing your actual video source.

So sorry for my ignorance. Could you please enlighten me on how to get AviSynth script from Staxrip GUI?

I got the following info from the log file:

--------------------------- AviSynth Script ---------------------------

LoadPlugin("C:\Users\XXX\Music\StaxRip-x64-1.7.0.0-stable\Apps\Plugins\avs\L-

SMASH-Works\LSMASHSource.dll")
LoadPlugin("C:\Users\XXX\Music\StaxRip-x64-1.7.0.0-stable\Apps\Plugins\both

\VSFilterMod\VSFilterMod.dll")
LSMASHVideoSource("C:\Users\XXX\Links\D0 Folder\New folder\26\Series.E03.mp4", 

format = "YUV420P8")
TextSubMod("C:\Users\XXX\Links\D0 Folder\New folder (3)\TVN_fw_isa.ass")

-------------------------- Script Properties --------------------------

Source Frame Count : 107555
Source Frame Rate  : 25.000000
Source Duration    : 01:11:42.2000000
Target Frame Count : 107555
Target Frame Rate  : 25.000000
Target Duration    : 01:11:42.2000000

-------------- Video encoding using x264 0.150.2851 8-Bit --------------

C:\Users\XXX\Music\StaxRip-x64-1.7.0.0-stable\Apps\x264\x264.exe --bitrate 

2276 --preset veryfast --output "C:\Users\XXX\Links\D0 Folder\New folder

\26\Series.E03_temp\Series.E03 [Asia2tv.com] HD_out.h264" "C:\Users\XXX\Links

\D0 Folder\New folder\26\Series.E03_temp\Series.E03 [Asia2tv.com] HD.avs"

avs [info]: 1280x720p 0:0 @ 25/1 fps (cfr)
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 

AVX2
x264 [info]: profile High, level 3.1
x264 [info]: frame I:731   Avg QP:13.42  size: 71472
x264 [info]: frame P:45698 Avg QP:16.58  size: 18663
x264 [info]: frame B:61126 Avg QP:18.22  size:  5306
x264 [info]: consecutive B-frames: 18.8% 11.2% 15.0% 55.0%
x264 [info]: mb I  I16..4: 18.4% 20.7% 60.8%
x264 [info]: mb P  I16..4: 10.0%  7.2%  2.1%  P16..4: 37.0% 16.7%  9.2%  0.0%  

0.0%    skip:17.9%
x264 [info]: mb B  I16..4:  1.8%  0.9%  0.1%  B16..8: 23.1%  7.2%  0.7%  

direct:12.1%  skip:54.1%  L0:48.6% L1:41.6% BI: 9.8%
x264 [info]: final ratefactor: 18.07
x264 [info]: 8x8 transform intra:35.5% inter:21.6%
x264 [info]: coded y,uvDC,uvAC intra: 40.7% 68.9% 29.3% inter: 10.3% 28.4% 

0.7%
x264 [info]: i16 v,h,dc,p: 52% 25% 19%  4%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 36% 28% 26%  1%  1%  2%  2%  2%  

2%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 26% 17%  4%  5%  4%  4%  4%  

3%
x264 [info]: i8c dc,h,v,p: 55% 19% 22%  4%
x264 [info]: Weighted P-Frames: Y:0.7% UV:0.3%
x264 [info]: kb/s:2286.23
encoded 107555 frames, 112.70 fps, 2286.23 kb/s

Start:    08:20:53 م
End:      08:36:48 م
Duration: 00:15:55

This is the Video Source's media-info:

Video
ID                    : 1
Format                : AVC
Format/Info           : Advanced Video Codec
Format profile        : Main@L3.1
Format settings       : CABAC / 1 Ref Frames
Format, CABAC         : Yes
Format, RefFrames     : 1 frame
Codec ID              : avc1
Codec ID/Info         : Advanced Video Coding
Duration              : 1 h 11 min
Bit rate              : 2 997 kb/s
Width                 : 1 280 pixels
Height                : 720 pixels
Display aspect ratio  : 16:9
Frame rate mode       : Constant
Frame rate            : 25.000 FPS
Color space           : YUV
Chroma subsampling    : 4:2:0
Bit depth             : 8 bits
Scan type             : Progressive
Bits/(Pixel*Frame)    : 0.130
Stream size           : 1.51 GiB (95%)
Writing library       : x264 core 129
Encoded date          : UTC 2017-06-21 21:48:58
Tagged date           : UTC 2017-06-21 21:48:58

[NMs_]

You can process 2 or more movies at same time. Or stop using single thread application to process video data feed to x264/5.

Thank you for our reply. Are there any free multi-thread applications? I heard about MeGui and Handbreak yet don't know if they support multi threading.

[pandy]

Your limitation is Avisynth - there is Multi-Thread Avisynth version but you must be prepared for many problems and limitations.

[Atak_Snajpera]

You can process 2 or more movies at same time. Or stop using single thread application to process video data feed to x264/5.

Thank you for our reply. Are there any free multi-thread applications? I heard about MeGui and Handbreak yet don't know if they support multi threading.

You should try Ripbot264 in distributed encoding mode. This way you can easily saturate hundreds of threads! Threadripper 2990WX (32C/64T) or upcoming DUAL EPYC2 (128C/256T) ? Nooooo problem!

[abolibibelot]

Your limitation is Avisynth - there is Multi-Thread Avisynth version but you must be prepared for many problems and limitations.

Recently I've been replied that “avisynth+ 64bit MT is very well optimized, signifcantly faster (not just because of memory; even small scripts with low memory footprint run faster)”, so is it still the case or not ? Or is it well optimized for the 64b part but not so much for the MT part ?