Hi Eric, * Eric Blake wrote on Tue, Nov 20, 2007 at 05:12:27AM CET: > > I've been working on this for over a month, now, and am finally happy > enough with my series of patches to post it as a new branch named > 'argv_ref'. I still need to write the ChangeLogs, perform additional > regression testing (such as the complete autoconf testsuite, and > bootstrapping libtool),
Cool. A very nice job you've done there. Libtool bootstrap, which contains 11 autoreconf's, goes from 79.92user 8.14system 1:41.50elapsed 86%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+1504396minor)pagefaults 0swaps to 69.96user 8.07system 1:31.28elapsed 85%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+1509603minor)pagefaults 0swaps with identical configure output files. The Autoconf testsuite passes over here. A m4_join with 4000 iterations now takes 0.43 s, compared with 14 s before, and the scaling remains strictly linear, see this table of argument number N, timing [s], and relative time increase for doubling of N: 1000 0.25 2000 0.33 1.32 4000 0.43 1.30 8000 0.66 1.53 16000 1.14 1.72 32000 2.09 1.83 64000 3.98 1.90 128000 7.84 1.97 With N >= 32000, I needed to fix a couple of very minor issues first (followup patches on m4-patches only). Cheers, Ralf
