Robert Dewar <[EMAIL PROTECTED]> writes: > Zack Weinberg wrote: >> Last year CodeSourcery had a contract to speed up the C++ front end at >> -O0, and we found that small linear reductions in memory usage >> corresponded directly to small linear reductions in time usage, at >> about a 2:1 ratio (so 1% less memory -> 0.5% less time). That >> wouldn't be worth bothering with except that there are *lots* of >> places where such reductions are available. We eventually got >> something like a 40% overall speedup just from this. (Sorry, I >> haven't got exact numbers.) > > Right I am aware of that work, but we are talking now, so the question > is do similar opportunities still exist?
Absolutely. Most of the memory-saving potential discussed in my and Nathan Sidwell's paper from last GCC summit, for instance, remains unrealized. zw
