7.3.4 -XX:[+|-]HitachiThreadDumpWithCpuTime
-XX:[+|-]HitachiThreadDumpWithCpuTime outputs the following information in the thread information of extended thread dumps: user CPU time and kernel CPU time.
Description
-XX:[+|-]HitachiThreadDumpWithCpuTime specifies whether to output the following information in the thread information of extended thread dumps: user CPU time and kernel CPU time.
The user CPU time and the kernel CPU time are output for the thread that is running the Java program. Hash codes are not output for the thread that is used for Java VM internal operation.
- Prerequisite option
-
-
-XX:+HitachiThreadDump
-
Syntax
-XX:[+|-]HitachiThreadDumpWithCpuTime
Specifiable values
Type: String
- -XX:+HitachiThreadDumpWithCpuTime
-
Outputs the following information in the thread information of extended thread dumps: user CPU time and kernel CPU time from the start of the thread.
- -XX:-HitachiThreadDumpWithCpuTime
-
Does not output the following information in the thread information of extended thread dumps: user CPU time and kernel CPU time from the start of the thread.
Notes
-
If the output to the directory specified in the environment variable JAVACOREDIR fails, the information is output in the current directory.
-
If the output to the current directory fails, the information is output as a standard error. In this case, the thread dump is not output as a standard.
-
When [+|-] for the options below is specified as "-", some thread information is not output.
Option name
Information that is not output
-XX:[+|-]HitachiThreadDumpWithHashCode
hash_value
-XX:[+|-]HitachiThreadDumpWithCpuTime
user_time, kernel_time
-XX:[+|-]HitachiThreadDumpWithBlockCount
block_count, standby_count