Monitoring Database Activity from the

 

 

 

Performance Metric

 

Current Total

 

 

 

 

 

“Tuning Database Performance” for

 

 

information on changing this value using the

 

 

Directory Server Console.

 

 

 

Current Entry Cache Size (in Entries)

 

The total number of directory entries currently

 

 

present in the entry cache.

 

 

 

Maximum Entry Cache Size (in Entries)

 

The maximum number of directory entries that

 

 

can be maintained in the entry cache. This

 

 

value is managed by the Maximum Entries

 

 

in Cache setting. See Section 2, “Tuning

 

 

Database Performance” for information on

 

 

changing this value using the Directory Server

 

 

Console.

 

 

 

Table 13.8. Summary Information

 

 

 

 

 

Performance Metric

 

Current Total

 

 

 

Hits

 

The number of times the database cache

 

 

successfully supplied a requested page. A

 

 

page is a buffer of the size 2K.

 

 

 

Tries

 

The number of times the database cache was

 

 

asked for a page.

 

 

 

Hit Ratio

 

The ratio of database cache hits to database

 

 

 

 

cache tries. The closer this value is to 100%,

 

 

the better. Whenever a directory operation

 

 

attempts to find a portion of the database that

 

 

is not present in the database cache, the

 

 

directory has to perform a disk access to

 

 

obtain the appropriate database page. Thus,

 

 

as this ratio drops towards zero, the number

 

 

of disk accesses increases, and directory

 

 

performance drops.

 

 

To improve this ratio, increase the amount of

 

 

data that the directory maintains in the

 

 

database cache by increasing the value of the

 

 

Maximum Cache Size setting. See Section 2,

 

 

“Tuning Database Performance” for

 

 

information on changing this value using the

 

 

Directory Server Console.

 

 

 

Pages Read In

 

The number of pages read from disk into the

 

 

database cache.

 

 

 

447

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HP UX Red Hat Direry Server Software Summary Information, Monitoring Database Activity from, Cache setting. See , Tuning