Common Performance Problems
Thischapter discusses common web site performance problems, and includes the following
topics:
■“check-aclServer Application Functions” on page 85
■“Low-MemorySituations” on page 86
■“TooFew Threads” on page 86
■“CacheNot Utilized” on page 87
■“Keep-AliveConnections Flushed” on page 87
■“LogFile Modes” on page 88
Note– For platform-specic issues, see Chapter 4, “Platform-Specic Issues and Tips”

check-acl Server Application Functions

Foroptimal performance of your server, use ACLs only when required.
Theserver is congured with an ACL le containing the default ACL allowing write access to
theserver only to all, and an es-internal ACL for restricting write access for anybody. The
latterprotects the manuals, icons, and search UI les in the server.
Thedefault obj.conf le has NameTrans lines mapping the directories that need to be read-only
tothe es-internal object, which in turn has a check-acl SAF for the es-internal ACL.
Thedefault object also contains a check-acl SAF for the default ACL.
Youcan improve performance by removing the check-acl SAF from the default object for
URIsthat are not protected by ACLs.
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CHAPTER 3
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