@directory_opus Directory Opus seems to be limited to 1GBit / sec transfers even across 10GbE connections. Intended?
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Replying to @TheForgedSoul
If we're talking copying files to network shares (not FTP/SFTP/etc.) then it should go as fast as your hardware and network will allow. Some hardware/drivers are extremely sensitive to buffer sizes and other factors, however, so playing with the Prefs/Advanced options can help.
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Replying to @directory_opus @TheForgedSoul
A lot of things are literally only tuned/tested for the exact way Explorer and the FileCopyEx API transmit data, and are much slower when anything else does it. With such a setup, a lot of things will be slow but you just won't notice them since most programs don't report speed.
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Replying to @directory_opus @TheForgedSoul
We'll be adding an option in the future to copy using that API in Opus, as it's the only way to get some devices to run at full speed, but increasing (or sometimes decreasing) buffer sizes (and sometimes the non-buffered I/O option) can help as well in the mean time.
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Replying to @directory_opus @TheForgedSoul
You should also be careful to measure the amount of time the network graph shows usage in Task Manager or a similar metric, rather than progress dialogs, which are not consistent between different software. (e.g. Explorer closes its dialog before the data is finished sending).
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Replying to @directory_opus
I just double checked this to be sure and the performance graph in the Task Manager reported correctly between both transfers. Windows Explorer will go up to 4 GBit (As fast as I can write to the share) while Directory Opus seems limited to 1 GBit for some reason.
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Replying to @TheForgedSoul
Using RAMDisks we've tested the Opus file copy code at speeds over 2 GB/s (gigabytes, not bits). So if the OS, drivers and hardware are buffering data correctly, there should be no bottleneck. Unfortunately, the OS, drivers and hardware are not always that good, or only tuned...
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Replying to @directory_opus @TheForgedSoul
...to the exact way Explorer (or other things using CopyFileEx) copies data and go much slower when anything else does. As I said, you can play with buffer sizes to get speed increases in a lot of cases, if it isn't going as fast as it should, and we'll be making Opus use...
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...CopyFileEx in the future (in situations where it is possible to use it; you can't do things like copy to or from an archive using that API, and you'll probably find Explorer has similar bottlenecks there on your hardware, as well as most other software if you measure them).
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