Re: Some very thought-provoking ideas about OS architecture.

shapj@us.ibm.com
Wed, 23 Jun 1999 15:30:59 -0400

>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
Email: shapj@us.ibm.com
Phone: +1 914 784 7085 (Tieline: 863)
Fax: +1 914 784 7595

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