What is the fastest way to read 10 GB file from the disk?

Question

We need to read and count different types of messages/run some statistics on a 10 GB text file, e.g a FIX engine log. We use Linux, 32-bit, 4 CPUs, Intel, coding in Perl but the

Answer 1

hmmm, but what's wrong with the read() command in C? Usually has a 2GB limit, so just call it 5 times in sequence. That should be fairly fast.