(This would have probably been better asked on tor-relays@.)
Leo Unglaub:
to fix the load issues on my 5 relays i tryed the suggested development version of tor. But there is not difference at all on the exit relays. They all burn on 99% CPU usage at 23 MB/s bandwidth.
Is there something special i have to do in the config to benefit from the new changes mad to quicker peerform the handshakes between the circuits?
Tor 0.2.4.17-rc will prioritize ntor handshakes over TAP handshakes. But TAP handshakes are still processed, and they are not scarce at the moment.