High CPU use when downloading at high speed.

[anonymous]

When downloading or uploading faster than about 50Mbits/s with 1000 active connections deluge uses 100% of the CPU and appears to be CPU bound.

This was expected due to the encryption on many of the connections.

When changing the encryption settings to "Disabled", I expected to have significantly lower CPU use. This was not the case - deluge still uses 100% of the CPU, and the throughput isn't any higher.

As a side effect of this the UI is also unresponsive when downloading at high speed making it hard to even stop the download until it finishes. (and even then sometimes seeding slows down the UI).

I'm guessing this hasn't been fixed as the devs don't have access to a large fast network to test on, so my main question is what can I, as someone who can look through code but not confident to delve too deep, most helpfully do to help fix this?

[andar]

Is this still an issue with 1.2?

[trac-robot]

This ticket was closed automatically by the system. It was previously set to a Pending status and hasn't been updated within 14 days.