On Mon, Nov 13, 2006 at 06:03:07PM -0800, Ashlesha Shintre wrote: > > > > 16.35 BogoMIPS (lpj=8176) > > > > Sounds about right if your CPU clock hapens to be 8MHz so probably not. > > Chances the counter was missprogrammed. Or are you running uncached? > > Uncached will completly devastate performance. > > > > For the AU1500 processor, the CPU Clock is derived from the PLL whose > input is 12MHz.. Upon reading the value of the SYS_CPUPLL register in > the calibrate_delay function, I found out that the multiplying factor is > 40, thus, the CPU Clock frequency is 480MHz.. Thus the lpj should be > approximately 480000 -- right? >From a CPU core like the Alchemy core I would more expect half of that number, 240000. That is if HZ is 1000 which I believe it was still hardwired for kernels of the vintage you're running. > Also I dont know what you mean by "running uncached"? CONFIG_MIPS_UNCACHED which disables all processor caches. Bad idea. > Thanks a lot, I will check the problem with the serial driver -- i m > using the 8250.c serial driver.. Use CONFIG_SERIAL_AU1X00. Ralf
