ranjith kumar <ranjit_kumar_b4u@xxxxxxxxxxx> writes: > 1) Will "gcc" insert prefetch instructions > automatically on "pentium 4" processor? > Which flags should be enabled while compiling sothat > gcc automatically insert prefetch instructions? gcc will insert prefetch instructions if you use the -fprefetch-loop-arrays option. > 2) Or programmer has to include some functions? > If so, what is the syntax of that function? You can use the __builtin_prefetch function. See the documentation. Ian
