No other option than restart ? It's my server
EDIT
Result on my server ( without restart, so always with the ressource warning ) :
CPU0: Intel(R) Xeon(R) CPU E5645 @ 2.40GHz [L3:12288 KB][L2:256 KB][L1:32 KB]
CPU1: Intel(R) Xeon(R) CPU E5645 @ 2.40GHz [L3:12288 KB][L2:256 KB][L1:32 KB]
With default settings ( using 12 threads ) :
1mn avg = 1636H/s
5mn avg = 1653H/s
Tried playing with --cpu-threads and --cpu-affinity, but no better result than with default settings
Very low result compared with KolordZ