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Backport-JDK-8322812-Manpage-for-jcmd-is-missing-JFR.patch 2.73 KB
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wuyafang 提交于 2024-10-14 11:38 . sync bishengjdk21 patches
Subject: Backport JDK-8322812 Manpage for jcmd is missing JFR.view command
---
src/jdk.jcmd/share/man/jcmd.1 | 53 +++++++++++++++++++++++++++++++++--
1 file changed, 51 insertions(+), 2 deletions(-)
diff --git a/src/jdk.jcmd/share/man/jcmd.1 b/src/jdk.jcmd/share/man/jcmd.1
index 27f5ee5eb..f3e254be9 100644
--- a/src/jdk.jcmd/share/man/jcmd.1
+++ b/src/jdk.jcmd/share/man/jcmd.1
@@ -1,4 +1,4 @@
-.\" Copyright (c) 2012, 2023, Oracle and/or its affiliates. All rights reserved.
+.\" Copyright (c) 2012, 2024, Oracle and/or its affiliates. All rights reserved.
.\" DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
.\"
.\" This code is free software; you can redistribute it and/or modify it
@@ -35,7 +35,7 @@
. ftr VB CB
. ftr VBI CBI
.\}
-.TH "JCMD" "1" "2023" "JDK 21" "JDK Commands"
+.TH "JCMD" "1" "2025" "JDK 24-ea" "JDK Commands"
.hy
.SH NAME
.PP
@@ -625,6 +625,55 @@ If no path is provided, the data from the recording is discarded.
value)
.RE
.TP
+\f[V]JFR.view\f[R] [\f[I]options\f[R]]
+Display event data in predefined views.
+.RS
+.PP
+Impact: Medium
+.PP
+\f[B]Note:\f[R]
+.PP
+The \f[I]options\f[R] must be specified using either \f[I]key\f[R] or
+\f[I]key\f[R]\f[V]=\f[R]\f[I]value\f[R] syntax.
+If no parameters are entered, then a list of available views are
+displayed.
+.PP
+\f[I]options\f[R]:
+.IP \[bu] 2
+\f[V]cell-height\f[R]: (Optional) Maximum number of rows in a table
+cell.
+(INT, default value depends on the view)
+.IP \[bu] 2
+\f[V]maxage\f[R]: (Optional) Length of time for the view to span.
+(INT followed by \[aq]s\[aq] for seconds \[aq]m\[aq] for minutes or
+\[aq]h\[aq] for hours, default value is 10m)
+.IP \[bu] 2
+\f[V]maxsize\f[R]: (Optional) Maximum size for the view to span in bytes
+if one of the following suffixes is not used: \[aq]m\[aq] or \[aq]M\[aq]
+for megabytes OR \[aq]g\[aq] or \[aq]G\[aq] for gigabytes.
+(STRING, default value is 32MB)
+.IP \[bu] 2
+\f[V]truncate\f[R]: (Optional) Maximum number of rows in a table cell.
+(INT, default value depends on the view)
+.IP \[bu] 2
+\f[V]verbose\f[R]: (Optional) Displays the query that makes up the view.
+(BOOLEAN, default value is false)
+.IP \[bu] 2
+\f[V]width\f[R]: (Optional) The width of the view in characters.
+(INT, default value depends on the view)
+.PP
+\f[I]arguments\f[R]:
+.IP \[bu] 2
+\f[V]view\f[R]: Name of the view or event type to display.
+Use \f[V]help JFR.view\f[R] to see a list of available views.
+(STRING, no default value)
+.PP
+The view parameter can be an event type name.
+Use \f[V]JFR.view types\f[R] to see a list.
+To display all views, use \f[V]JFR.view all-views\f[R].
+To display all events, use \f[V]JFR.view all-events\f[R].
+.RE
+.TP
\f[V]JVMTI.agent_load\f[R] [\f[I]arguments\f[R]]
Loads JVMTI native agent.
.RS
--
2.33.0
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