I never get cpu utilization below 2%. Only when wireless card is disabled by soft or when wireless link is down. When wireless is up it stays an average of 50% at idle state. When I load the link with traffic it reaches 100%, at 20 Mbps in one way, either transmit or receive
Onother test I done with rb133, is with dual-streme. (2 radio cards per RB133)
Instead of doubling the throughput it also, stays throughput at 20-22 Mbps in one way and 12 Mbps in both ways. In all cases at 100% cpu utilization.
I dont see improvement in dual-streme.
Packages installed: I also tried to disable all unnesary packages, routing, security, dhcp, hotspot, etc, and did not get any imrpovement.
Test enviroment: Rb133, some units with one wireles card SR5 (ubiquiti), and other rb133 with 2 cards SR5. (also notice that average cpu increases when having 2 cards even though the second card is not loades with traffic)
I would appreciate if someone can give me a hint