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7th October 2017, 17:00 | #5621 | Link |
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hey there. are there any commands to improve multithreading on x265?
i'm running an i9 @ 12/24x3.5ghz i end up with 70-80% cpu usage at most, using presets medium slow slower slowest / main10 it's running at ~5/6fps on a slower 4k encode or do you think something else is bottlenecking me? |
7th October 2017, 17:08 | #5622 | Link | |
Artem S. Tashkinov
Join Date: Dec 2006
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7th October 2017, 17:35 | #5623 | Link | |
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Quote:
i was thinking x265 team wrote it scales up to 20(??) threads or something, but i wasn't sure i also tried to disable HT to run with (only) 12 threads, which doesn't sound like much to me, but same result. i'll run 2 instances of x265 then. : |
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8th October 2017, 12:56 | #5624 | Link | |
RipBot264 author
Join Date: May 2006
Location: Poland
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Quote:
If you see cpu utilization at ~75% then this means that in practice you get ~93% of your CPU. Code:
100-15/50*(100-75)=92.5
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Windows 7 Image Updater - SkyLake\KabyLake\CoffeLake\Ryzen Threadripper Last edited by Atak_Snajpera; 8th October 2017 at 13:03. |
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8th October 2017, 18:16 | #5625 | Link | |
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9th October 2017, 11:13 | #5626 | Link | |
Lost my old account :(
Join Date: Jul 2017
Posts: 324
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Quote:
2x Intel Xeon E5-2690 v3 @ 2.9Ghz (24C48T): 3.36 fps 2x Intel Xeon E5-2643 v4 @ 3.6Ghz (12C24T): 2.37 fps |
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9th October 2017, 15:48 | #5628 | Link |
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x265 v2.5+27-0e168bdeb48b (GCC 7.2.0, 32 & 64-bit 8/10/12bit Multilib Windows Binaries)
x265 [info]: HEVC encoder version 2.5+27-0e168bdeb48b x265 [info]: build info [Windows][GCC 7.2.0][32/64 bit] 8bit+10bit+12bit x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 Code:
https://bitbucket.org/multicoreware/x265/commits/branch/default |
9th October 2017, 17:45 | #5631 | Link |
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Yeah well but it doesnt. MKVToolNix shows 2 streams one with 4k and one with 1080p. Ofc thats not really accurate cause MKVToolNix doesnt support Dolby Vision but both standards are there. The TV doesnt play the m2ts.
So I have to convert the m2ts to mkv which THEN only seems to support HDR10. As an example this one: http://4kmedia.org/lg-dolby-vision-uhd-4k-demo/ Once I've used MKVToolNix, the Dolby Vision is gone Is there at least a way to see if I am using Dolby Vision or not? The TS and the MKV files look pretty much the same in MediaInfo for example. But one has DV the other doesnt.... Last edited by d3rd3vil; 9th October 2017 at 19:43. |
10th October 2017, 10:10 | #5632 | Link |
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are you sure your TV supports Dolby Vision or 12-bit in general? From what Ive read most panels dont.
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Laptop Lenovo Legion 5 17IMH05: i5-10300H, 16 GB Ram, NVIDIA GTX 1650 Ti (+ Intel UHD 630), Windows 10 x64, madVR (x64), MPC-HC (x64), LAV Filter (x64), XySubfilter (x64) (K-lite codec pack) |
10th October 2017, 10:24 | #5633 | Link |
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Join Date: Jun 2016
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12 bit doesnt matter atm. No TV supports that, thats true.
I got an LG Oled B6. All these Oleds support Dolby Vision. So as I said the TS file has DV and it works fine! After using MKVToolNix, cause the program doesnt support DV, Dolby Vision is gone from the MKV. But still some information wether the file has DV or not would be nice. But MediaInfo, nor MPC or VLC or any program show anything regarding Dolby Vision....its like it doesnt exist yet. Unfortunate |
10th October 2017, 11:05 | #5634 | Link |
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Location: Hamburg/Germany
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This entire discussion is rather off-topic for the x265 thread, since x265 cannot encode Dolby Vision, nor is it in any way related to handling your existing Dolby Vision files.
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LAV Filters - open source ffmpeg based media splitter and decoders |
11th October 2017, 18:51 | #5639 | Link |
German doom9/Gleitz SuMo
Join Date: Oct 2001
Location: Germany, rural Altmark
Posts: 6,781
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@jlpsvk: I directed that to d3rd3vil. Being interested in enhancing x265 is a valid intention here. But using eac3to is best discussed in a thread about eac3to, instead. And there I already expressed my doubts that eac3to is the first choice software to treat video streams, because it was originally made to handle audio streams.
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