It comes from Phex downloading from several sources at once.
For those last 10% you might have only one source left. Normally Phex downloads from many sources at once, but as soon as there is only a small part of the file left, it gets sent to only one of the remaining sources. Sometimes that source isn't that fast.
But the effect should be far less worse in Phex 2.8.2 than in previous versions (the size of downloaded "chunks" is adjusted to the speed of the source, so that a download should always take about 90s, adjustable by you, but to that later on).
Maybe it would be possible to fix it in Phex (by reducing the size of segments when at least 90% of the file has been downloaded and there are several sources, or by downloading the last segment from several sources at the same time and only using the part from the one which finishes first), but I'll have to wait for Gregor for anything definite (it's quite a lot of coding work, which might be better spent somewhere else).
But you can reduce the "target-time" for segments yourself to reduce this effect (options -> downloads -> target-time (standard is 90s, iirc)).
That will somehow decrease the overall speed of downloading, though (overhead of the TCP-protocol), so I wouldn't advise it. |