On Tue, 2006-01-24 at 01:54 +1030, n0dalus wrote: > On 1/24/06, Josh Boyer <jwboyer@xxxxxxxxxxxxxxxxxx> wrote: > > > On Mon, 2006-01-23 at 07:53 -0600, Josh Boyer wrote: > > > > > > The "s" in -Os stands for "size", not for "speed". So if -Os compiled > > > code-execution is faster than the default CFLAGS, something must be > > > broken elsewhere. > > > > That's not true. Yes, -Os stands for size. However code size _can_ > > translate to performance increase. Think about cache footprint, etc. > > Smaller code means more can fit in the cache. It also results in a > > smaller DRAM footprint for thinks like shared libraries, etc. > > > > Yes. In fact, -Os has been shown in many benchmarks to be just as good > if not occasionally superior in efficiency to -O2. References? Which CPUs? How generalizable are these results? The fact that some applications might be running faster -Os-compiled, doesn't mean much. Ralf -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
