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Re: [OT] GCC vs Intel C++ compiler benchmark
Tim Prince <email@example.com> writes:
> In my experience, Win2K takes better advantage of L2 cache than
> linux, provided that the machine is dedicated to a single task, the
> time slice is set long, and nothing special is done in linux to take
> advantage of that. At most a 2% differential there.
Yes, I observed that when I ran the HINT benchmark on Windows 95, NT,
Linux 2.0.34 and 2.1.108 a few years ago (on identical hardware, using
identical machine code). Using Linux, performance started to drop
well before the 512 KB L2 cache is fully used by the benchmark, in
contrast to NT. However, when the working set approaches 4 MB and
beyond, Linux was faster again.