Results folders:
..//2010-08-20_1016/btrfs8-20-base/btrfs1.ffsb.sequential_reads__threads_0128.10-08-20_10.36.53
..//2010-08-20_1016/btrfs8-20-base-nocow/btrfs1.ffsb.sequential_reads__threads_0128.10-08-20_14.42.45
..//2010-08-21_1031/btrfs8-20-perfpatch/btrfs1.ffsb.sequential_reads__threads_0128.10-08-21_10.52.17
..//2010-08-21_1031/btrfs8-20-perfpatch-nocow/btrfs1.ffsb.sequential_reads__threads_0128.10-08-21_14.59.00