HP ProLiant 4500 Performance Analysis and Capacity Planning for Microsoft Site - Page 5

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WHITE PAPER (cont.) 5... EXECUTIVE SUMMARY This white paper provides guidelines for planning the configuration of Compaq ProLiant 2500 and ProLiant 7000 computers to run two features from Microsoft® Site Server: Internet Locator Server (ILS) and Personalization System (PS). They were selected because we expect them to be used frequently and because their use will have a significant effect on the performance of a server at times of peak use. Planning for the load these Site Server components will put on a server will allow for the construction of a more responsive, reliable server for the user community. In order to determine the capacity planning guidelines, system performance was measured under various load conditions. ILS and PS run in conjunction with Microsoft® Internet Information Server (IIS) version 3.0, which is the Web server included in Microsoft® Windows NT® Server 4.0 network operating system (Windows NT). ILS provides a dynamic directory service that makes it possible to find users who are online. In order to test the performance of ILS it is necessary to simulate many online users on a system. This was accomplished in two ways: first, an Active Server Page (ASP) was used to load ILS with many simulated users; then Microsoft's InetLoad tool was set up to simulate the activity of thousands of users accessing ILS to find other users. The maximum number of online users simulated for testing was 10, 000 for a period of 600 seconds. This is more thoroughly explained in the "ILS Performance Measurement Procedures" section of this document. PS provides a user property database that simplifies the process of providing personalized Web pages for each user. PS features are made available via Active Server Pages. The performance of PS was tested by creating user property databases of various sizes representing the user communities on a Web server. The maximum simulated community size tested was of 1,000,000 users. Then Microsoft's WCAT (Web Server Analysis Tool) tool was used to simulate thousands of Web browsers accessing personalized Web pages. The tests were run for a total of 15 minutes, with a 5 minute warm-up period and a 10 minute measurement period. This is explained more thoroughly in the "PS Performance Measurement Procedures" section of this document. For Internet Locator Server (ILS), the test results have shown that both ProLiant 2500 and ProLiant 7000 are highly scalable; a ProLiant 2500 can address approximately 500 connects/sec, 850 adds/sec, and 900 direct lookups/sec and a ProLiant 7000 can address approximately 800 connects/sec, 1300 adds/sec, and 1500 direct lookups/sec for online user communities ranging in size from 500 to 10,000. For Personalization System (PS), the test results have shown that both ProLiant 2500 and ProLiant 7000 can easily serve personalized Web pages for each customer, for sites with up to one million online users. A Proliant 2500 can address 50 Web pages requests/sec and 50 Active Server pages requests/sec (4.3 million requests/day). A ProLiant 7000 can address 60 Web pages requests/sec (5.2 million requests/day) and 68 Active Server pages requests/sec (5.9 million requests/day).

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APER
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E
XECUTIVE
S
UMMARY
This white paper provides guidelines for planning the configuration of Compaq ProLiant 2500
and ProLiant 7000 computers to run two features from Microsoft
Site Server: Internet Locator
Server (ILS) and Personalization System (PS). They were selected because we expect them to be
used frequently and because their use will have a significant effect on the performance of a server
at times of peak use. Planning for the load these Site Server components will put on a server will
allow for the construction of a more responsive, reliable server for the user community.
In order to determine the capacity planning guidelines, system performance was measured under
various load conditions. ILS and PS run in conjunction with Microsoft
Internet Information
Server (IIS) version 3.0, which is the Web server included in Microsoft
Windows NT
Server
4.0 network operating system (Windows NT).
ILS provides a dynamic directory service that makes it possible to find users who are online. In
order to test the performance of ILS it is necessary to simulate many online users on a system.
This was accomplished in two ways: first, an Active Server Page (ASP) was used to load ILS with
many simulated users; then Microsoft’s InetLoad tool was set up to simulate the activity of
thousands of users accessing ILS to find other users. The maximum number of online users
simulated for testing was 10, 000 for a period of 600 seconds. This is more thoroughly explained
in the “ILS Performance Measurement Procedures” section of this document.
PS provides a user property database that simplifies the process of providing personalized Web
pages for each user. PS features are made available via Active Server Pages. The performance of
PS was tested by creating user property databases of various sizes representing the user
communities on a Web server. The maximum simulated community size tested was of 1,000,000
users. Then Microsoft’s WCAT (Web Server Analysis Tool) tool was used to simulate thousands
of Web browsers accessing personalized Web pages. The tests were run for a total of 15 minutes,
with a 5 minute warm-up period and a 10 minute measurement period. This is explained more
thoroughly in the “PS Performance Measurement Procedures” section of this document.
For Internet Locator Server (ILS), the test results have shown that both ProLiant 2500 and
ProLiant 7000 are highly scalable; a ProLiant 2500 can address approximately 500 connects/sec,
850 adds/sec, and 900 direct lookups/sec and a ProLiant 7000 can address approximately 800
connects/sec, 1300 adds/sec, and 1500 direct lookups/sec for online user communities ranging in
size from 500 to 10,000.
For Personalization System (PS), the test results have shown that both ProLiant 2500 and
ProLiant 7000 can easily serve personalized Web pages for each customer, for sites with up to one
million online users. A Proliant 2500 can address 50 Web pages requests/sec and 50 Active
Server pages requests/sec (4.3 million requests/day). A ProLiant 7000 can address 60 Web pages
requests/sec (5.2 million requests/day) and 68 Active Server pages requests/sec (5.9 million
requests/day).