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Author Park, Arvin ♦ Becker, Jeffrey C.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Abstract We analyze the paging behavior of several different versions of UNIX by recording traces of paging activity over time and writing programs to analyze the traces. We recorded periodic totals of paging events instead of individual paging events themselves. Our analysis shows that paging activity accounts for between 15% and 21% of all disk block accesses. Average paging system traffic is very low. The paging system is idle most of the time and paging activity occurs in large periodic bursts. Despite the fact that it is often overlooked, swap related paging accounts for a significant portion of all paging activity (between 24% and 71%). Furthermore, the behavior of swap-related paging differs greatly from the well-studied behavior of demand paging. The ratio of pages read to pages written (which varies between 0.85 and 1.9) is lower than typical read to write ratios for file system accesses. Paging activity is loosely correlated with load average or number of users.
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2014-01-10
Publisher Place New York
Journal ACM SIGMETRICS Performance Evaluation Review (PERV)
Volume Number 19
Issue Number 2
Page Count 8
Starting Page 36
Ending Page 43


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Source: ACM Digital Library