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ucin1013197957.pdf (359.11 KB)
ETD Abstract Container
Abstract Header
Network and I/O Characteristics of ISP Mail Servers
Author Info
Gao, Hongyan
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1013197957
Abstract Details
Year and Degree
2002, MS, University of Cincinnati, Engineering : Computer Science.
Abstract
This thesis presents a performance study of the ISP (Internet ServiceProvider) mail servers. By using the SPECmail2001 benchmark to test a commercial mail service – MDaemon mail server, both the network and the I/O performance of mail servers with user populations between 200 and 10,000 were studied. File system traces were collected for analysis. From the benchmark results, trace-driven simulations and offline trace analysis, several important conclusions for the ISP mail servers were made and the technical suggestions were given correspondingly. It is observed that, in SMTP and POP sessions, the initial network connection setup usually takes a very long time comparing to other phases. I/O latencies contribute up to 40–55% of the data transfer time of the e-mail requests, especially when the user population is high. It is also found that mail servers have better file system temporal and spatial locality than web servers. Most files are short-lived. Because of the skewed file access patterns, a reasonably-sized file system cache can capture most file accessed.
Committee
Dr. Yiming Hu (Advisor)
Pages
51 p.
Subject Headings
Computer Science
Keywords
email
;
file system
;
performance
;
SMTP
;
POP
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Citations
Gao, H. (2002).
Network and I/O Characteristics of ISP Mail Servers
[Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1013197957
APA Style (7th edition)
Gao, Hongyan.
Network and I/O Characteristics of ISP Mail Servers.
2002. University of Cincinnati, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1013197957.
MLA Style (8th edition)
Gao, Hongyan. "Network and I/O Characteristics of ISP Mail Servers." Master's thesis, University of Cincinnati, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1013197957
Chicago Manual of Style (17th edition)
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Document number:
ucin1013197957
Download Count:
778
Copyright Info
© 2002, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.