UNIX Checking Page Fault Rates BASIS
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Prerequisites
Unlike Windows NT, pages are swapped out to the working memory under UNIX if the space is needed, and then they are overwritten. This swapping out uses up valuable time and performance.
Transaction ST06 displays a small Pages out value and a similar Pages in value in a performing system. The Pages out value is very important when assessing system performance.
Procedure
The following values for Pages in should not be exceeded in the short or long-term.
Value Limit: Pages out under UNIX:
Pages in | Value Limit: |
Short-term maximum for Pages in/s (Transaction ST06) | 200 |
Long-term maximum for Pages in/h (Transaction ST06) | 600.000 |
Keyword: BASIS
Title : UNIX Checking Page Fault Rates BASIS
