>I think one source of argument here is that (for examples) OLTP, news
>spooling, and software development are almost, but not quite, totally
>unlike one another in the ways they use storage, so different folks have
>different priorities. It's fairly easy to see how EROS is a win for OLTP,
>but this may not be so clear for other activities.
Quite right about differences in usage leading to differences in priorities.
As I explained in an earlier round somewhere, the EROS storage allocator works very hard to allocate things in an extent-oriented fashion. In practice this works quite well.
Jonathan S. Shapiro, Ph. D.
IBM T.J. Watson Research Center
Phone: +1 914 784 7085 (Tieline: 863)
Fax: +1 914 784 7595