Messages in this thread | | | From | Steve Snyder <> | Subject | Testing optimize-for-size suitability? | Date | Sun, 16 Jan 2005 10:40:12 -0500 |
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Is there a benchmark or set of benchmarks that would allow me to test the suitability of the CONFIG_CC_OPTIMIZE_FOR_SIZE kernel config option?
It seems to me that the benefit of this option is very dependant on the amount of CPU cache installed, with the compiler code generation being a secondary factor. The use, or not, of CONFIG_CC_OPTIMIZE_FOR_SIZE is basically an act of faith without knowing how it impacts my particular environment.
I've got a Pentium4 CPU with 512KB of L2 cache, and I'm using GCC v3.3.3. How can I determine whether or not CONFIG_CC_OPTIMIZE_FOR_SIZE should be used for my system?
Thanks.
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