Download and upload speed

You’ve probably been browsing through someone’s share and selected a file for download… And saw it run by at 13 gazillion bytes per second. Or something like that imaginary. Especially since you’re on a 0.5 Mbit/s line.

If you’ve seen this a similar strange value in the transfer view, it is due to compression. Yep. Compression. That is, how well the file is compressed.

If you look at the ‘Ratio’ column, you will see how much the file is compressed (or decompressed), in per cent (%). “1,00” indicate that the file is not (de)compressed at all. If you see a value above “1,00”, it is decompressed. If you see a value below “1,00”, it is compressed.

The speed column doesn’t reflect on the file’s actual speed, it reflect on the speed of the compressed file, that is, at the speed it could potentially transfer the file. You see, “DC++ compress” files. And when it has arrived to your computer, the compressed file gets decompressed and it appear as you downloaded 4 GiB of data while you actually transfered 100 MiB.

To see a more accurate speed, look at the bottom of DC++. Where you see “D: x KiB/s (y)” where x is the avarage amount of y transfers. This value show the speed for the actual 100 MiB file.

An even more accurate place to look at, is of course Windows’ task manager, at Network settings.

(Everything work the exact same way for uploads.)

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