View Bug Details
ID | Project | Category | View Status | Date Submitted | Last Update |
---|---|---|---|---|---|
0001089 | DCP-o-matic | Bugs | public | 2017-06-19 09:41 | 2020-12-16 00:12 |
Reporter | Pollux | Assigned To | carl | ||
Priority | normal | Severity | minor | Reproducibility | always |
Status | closed | Resolution | fixed | ||
Platform | 64 bit | OS | Windows | OS Version | 7 |
Product Version | 2.11.0 | ||||
Summary | 0001089: ffmpeg only uses 1 thread | ||||
Description | When exporting to ProRes ffmpeg only uses one thread so on my machine I can only get 2 fps or less while 31 cores are idle. | ||||
Tags | No tags attached. | ||||
Branch | |||||
Estimated weeks required | |||||
Estimated work required | Small | ||||
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Probably needs multi-thread ffmpeg and multi-threaded DCP decoding. |
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Added multi-thread preview in 3e230d3785f19bc707fd7ea2b1f55321b93f536f so maybe export can use a similar approach. |
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Added multi-thread decoding of DCPs in 0302594838ce422afb3346ecc91a1bdfd26c00de. |
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Need to look at what the bottleneck is now; it may be possible to ask FFmpeg to use more threads. |
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I think this is as good as it needs to be for 2.12.0; the encoder is already asking for "automatic" thread allocation so I think it should use more than 1 if it can. |
Date Modified | Username | Field | Change |
---|---|---|---|
2017-06-19 09:41 | Pollux | New Bug | |
2017-06-19 15:26 | carl | Priority | high => normal |
2017-06-19 15:26 | carl | Status | new => confirmed |
2017-06-19 15:26 | carl | Target Version | => 2.12.0 |
2017-06-19 15:26 | carl | Estimated work required | Unknown => Small |
2017-07-25 10:31 | carl | Note Added: 0001744 | |
2017-07-26 15:48 | carl | Note Added: 0001748 | |
2017-07-26 17:08 | carl | Note Added: 0001749 | |
2017-07-26 17:08 | carl | Note Added: 0001750 | |
2018-01-04 22:27 | carl | Target Version | 2.12.0 => |
2018-01-04 22:27 | carl | Note Added: 0001906 | |
2019-02-01 00:26 | carl | Assigned To | => carl |
2019-02-01 00:26 | carl | Status | confirmed => resolved |
2019-02-01 00:26 | carl | Resolution | open => fixed |
2020-12-16 00:12 | carl | Status | resolved => closed |