[Qbittorrent-devel] GASA ETA calculation algorithm

[Chris <dc...@gm...>]

Hi,

I have just rewrote from scratch the ETA calculation, using a new algorithm.
The old one used a lot of memory/cpu, experienced overflows, sometimes
displayed "< 1min" instead of "Unknown" for no reason.

The new algorithm is GASA (Global Average Speed Algorithm). It fairly
precise and really simple. We shouldn't have to worry about overflows
anymore.

The tricky part was to compute global average speed (in the previous
algorithm, we used an average of speed samples taken regularly in the last
10 minutes). Now it does use the average speed over le whole session (less
the time spent in paused state). The ETA is more precise and more stable
that previously. I also think it is a lot cleaner and less buggy.

I commited to trunk and v1.0.0 branch (will be in rc10 if there is one or
final) too. Please tell me if you notice any weird behavior with the new ETA
calculation algorithm.

Best regards,
Chris.