Performance evolution in a large scale system. [DEMOS operating system] [electronic resource].
- Published
- Los Alamos, N.M. : Los Alamos Scientific Laboratory, 1980.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- Pages: 22 : digital, PDF file
- Additional Creators
- Los Alamos Scientific Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- This paper documents the evolution of system performance in an operating system from its initial use by a few friendly users in October 1978 to its present state. The system, DEMOS, was developed for the Cray Research Inc. (CRI) Cray-1 computer at the Los Alamos Scientific Laboratory (LASL) by staff members in the LASL Computer Science and Services Division. Some important features of DEMOS architecture are described. It is shown how the robustness in the design permitted major reduction in overhead to be achieved with only minor software changes. Particular emphasis is placed on file system design and performance because much of the system overhead reduction occurred as a result of changes to this system component. Also, some predictions are made regarding performance resulting from proposed modifications. 8 figures.
- Report Numbers
- E 1.99:la-ur-80-1185
E 1.99: conf-801004-1
conf-801004-1
la-ur-80-1185 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
01/01/1980.
"la-ur-80-1185"
" conf-801004-1"
Computer performance evaluation users group conference, Orlando, FL, USA, Oct 1980.
Anderson, J.W.; Brice, R.S. - Funding Information
- W-7405-ENG-36
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