Simple "thrash the directory cache" test:
(boot, cd /, time ls -Ral)
2.1.35:
8.38user 22.71system 1:31.53elapsed 33%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+0minor)pagefaults 0swaps
2.1.36:
8.18user 28.00system 1:37.25elapsed 37%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+0minor)pagefaults 0swaps
Bonnie:
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
2.1.35 100 2976 38.2 3065 9.7 1342 9.3 2530 32.6 2990 8.1 57.4 1.6
2.1.36 100 3002 38.3 2878 9.2 1346 9.8 2396 31.4 2987 9.0 57.4 1.6
Each was only run once, so I suppose more 'time trials' might give some more
data points of comparison, but it looks like not much has changed
performance-wise.
Probably just hitting my system's peak..