Processor speed is only part of the answer to the RISC, CISC battle and this type of radio design. Things flow in a logical operation and waiting occurs on the systems buses in the PC based design.
Processor Cache Memory bus Memory Systems bus Ect.. Designs in the different buses or systems architectures, Bus mastering controllers, custom ASICs, as well as memory refresh strategy and ect.. all produce the end result. As you move down the list or through the system, each subsystem runs slower and slower, if you don't have custom ASIC's and have to come back to the proc for filtering and stuff like that, then you continue to tie the bus up. Most vendors provide performance charts based on minimum configuration but as you start adding thing like NAT, IP Filters and stuff like this you put more pressure on the proc and ultimately more pressure on the bus adding wait states, interrupt requests, ect, ect. Dustin -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bo Ring Sent: Tuesday, July 15, 2008 11:01 PM To: WISPA General List Subject: Re: [WISPA] RB532 and 40MBps > Question is.... Why does teh 600 series outperform them all, when it > has the slowest processor in MHZ? > > Are Mikrotik's 532a speeds test at 266 or 400Mhz? And the 600 series > at 200 or 400? They did specify on their report. > > Is the 600's Power PC's processor really that much better that it gets > so much better speed at slower Mhz? While I can not speak of it in use between these two routers, there is a reason why it was logical to move to RISC. They are more efficient chips and tend to be even more so when they are used in specific environments. If anyone is a Mac head from way back, you might remember the raw numbers between the 40MHz 68030 and the 25MHz PowerPC when Apple first moved to them. -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
