7.18.3 jvm.userprf.File

Description

jvm.userprf.File specifies the file path of the performance-based trace analysis configuration file.

The performance-based trace analysis function reads the file corresponding to the file path specified in this property as the performance-based trace analysis configuration file. Note that, if this property is not specified, the file of the default file path will be set and read as the performance-based trace analysis configuration file.

The method specified in the performance-based trace analysis configuration file is the target of performance-based trace analysis.

Prerequisite property

• jvm.userprf.Enable=true

Syntax

jvm.userprf.File=character_string

Specifiable values

character_string

Type: String

• Specify the file path of the performance-based trace analysis configuration file.

• Only one file path can be specified.

• For the path, you can specify either the relative path from the current directory or the absolute path.

Default value

If the definition item is omitted:

installation_directory_for_JDK/usrconf/userprf.cfg

If the value is omitted:

Outputs a warning message to the Java VM log file to indicate that the file does not exist.

-Djvm.userprf.File=/test/setting.txt

Notes

• The default character encoding for the JDK operation platform is used to read the performance-based trace analysis configuration file. If the character encoding of the file is not the default encoding, the file will be processed as if it were specified by using the default encoding.

• To specify different performance-based trace analysis settings for each server, prepare a performance-based trace analysis configuration file for each server, and then specify the file path for each server in this property.

• If the file of the specified path cannot be read or the settings that are read are not valid, the logs regarding the reading of the performance-based trace analysis configuration file will be output to the Java VM log file.