UltraSPARC Compiler Tuning

Compilers have a huge variety of options. Some should be used as a matter of course, some give a big speedup if used correctly, and others can get you into trouble. What are the implications of using the UltraSPARC-specific options, and which options make the most difference to performance?

The answer depends upon your situation. If you are a software vendor, your main concern is likely to be portability and testing costs. With a careful choice of options, you can support a large proportion of the Solaris installed base with very good performance. If you are an end user with source code and some CPU intensive applications that take a long time to run, you may be more interested in getting the very best possible performance ...

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