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Siempre Recuerdo (Always Remember):
|
A FILE is a STREAM O' BYTES!! Live it, love it, learn it!! |
and:
| .Dotted Files are exempt from file-matching metacharacter expansion!! |
as well as:
|
A process is a program in any state of execution. |
The virtual memory manager takes are of swapping the pages.
Demand Page Fault: when a page that is requested by the process isn't in memory, a page fault is issued, and the
virtual memory manager goes to get the missing page. To save time (disk access is the slowest funtion in this process), more
pages than the requested page are loaded into available memory (UNIX logically assumes that more than just the next page of
a file will be needed eventually.)
The swapper and pager work together to move data in and out of memory.
Cache also adds to the amount of data retainable.
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Last updated: Friday, June 12, 1998 at 3:18 AM.