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8265271: JFR: Allow use of .jfc options when starting JFR

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Reviewed-by: mgronlun
This commit is contained in:
Erik Gahlin 2021-06-10 13:18:54 +00:00
parent f677163b8a
commit f716711c7b
22 changed files with 1362 additions and 630 deletions
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16
src/java.base/share/man/java.1
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@ -1757,6 +1757,22 @@ is needed.
.PP
You can specify values for multiple parameters by separating them with a
comma.
.PP
Event settings and .jfc options can also be specified using the following
syntax:
.TP
.B \f[CB]option=\f[R]\f[I]value\f[R]
Specifies the option value to modify. To list available options, use the
JAVA_HOME/bin/jfr tool.
.TP
.B \f[CB]event-setting=\f[R]\f[I]value\f[R]
Specifies the event setting value to modify. Use the form:
<event-name>#<setting-name>=<value>
To add a new event setting, prefix the event name with '+'.
.PP
In case of a conflict between a parameter and a .jfc option, the parameter
will take precedence. The whitespace delimiter can be omitted for timespan values, i.e. 20ms. For
more information about the settings syntax, see Javadoc of the jdk.jfr package.
.RE
.TP
.B \f[CB]\-XX:ThreadStackSize=\f[R]\f[I]size\f[R]