On Sun, 2005-01-16 at 10:40 -0500, Steve Snyder wrote: > 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?
it also saves 400 kb of memory that can be used by the pagecache now... that doesn't show in a microbenchmark but it's a quite sizable gain if you remember that a disk seek is 10msec..that is a LOT of cpu cycles.. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
