Hi,I have to write a dummy testing program which continuously reads 2 bytes on RAM, fills a buffer, and then sends all the data through the Ethernet interface. It's used just to evaluate the maximum throughput that I would have reading from memory and sending to Ethernet.
However, If I read always the same data, the processor uses the cache and does not perform a memory read.
My question is: how can I tell gcc to not cache such data ?
Many thanks for any help and suggestion,
Claudio
