Re: git: kernel - Fix cluster_read random I/O heuristic

[Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>]

    The cluster fix for random I/O's is turning out to be a pretty
    serious performance fix for programs doing a lot of random I/O,
    like postgres.  Not only does it fix the disk I/O performance but
    I am getting reports that it also reduces the VM load (since it is
    caching less read-ahead data that is never accessed).

						-Matt