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8322064: Remove expired flags in JDK 24

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Reviewed-by: kvn, stuefe
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David Holmes 2024-06-13 02:53:48 +00:00
parent fcedde8042
commit 238162a3b8
2 changed files with 50 additions and 87 deletions
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110
src/java.base/share/man/java.1
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@ -3737,45 +3737,6 @@ Example:
Enables the use of Java Flight Recorder (JFR) during the runtime of the
application.
Since JDK 8u40 this option has not been required to use JFR.
.TP
\f[V]-XX:InitialRAMFraction=\f[R]\f[I]ratio\f[R]
Sets the initial amount of memory that the JVM may use for the Java heap
before applying ergonomics heuristics as a ratio of the maximum amount
determined as described in the \f[V]-XX:MaxRAM\f[R] option.
The default value is 64.
.RS
.PP
Use the option \f[V]-XX:InitialRAMPercentage\f[R] instead.
.RE
.TP
\f[V]-XX:MaxRAMFraction=\f[R]\f[I]ratio\f[R]
Sets the maximum amount of memory that the JVM may use for the Java heap
before applying ergonomics heuristics as a fraction of the maximum
amount determined as described in the \f[V]-XX:MaxRAM\f[R] option.
The default value is 4.
.RS
.PP
Specifying this option disables automatic use of compressed oops if the
combined result of this and other options influencing the maximum amount
of memory is larger than the range of memory addressable by compressed
oops.
See \f[V]-XX:UseCompressedOops\f[R] for further information about
compressed oops.
.PP
Use the option \f[V]-XX:MaxRAMPercentage\f[R] instead.
.RE
.TP
\f[V]-XX:MinRAMFraction=\f[R]\f[I]ratio\f[R]
Sets the maximum amount of memory that the JVM may use for the Java heap
before applying ergonomics heuristics as a fraction of the maximum
amount determined as described in the \f[V]-XX:MaxRAM\f[R] option for
small heaps.
A small heap is a heap of approximately 125 MB.
The default value is 2.
.RS
.PP
Use the option \f[V]-XX:MinRAMPercentage\f[R] instead.
.RE
.SH OBSOLETE JAVA OPTIONS
.PP
These \f[V]java\f[R] options are still accepted but ignored, and a
@ -3789,16 +3750,6 @@ This option was deprecated in JDK 16 by \f[B]JEP 396\f[R]
[https://openjdk.org/jeps/396] and made obsolete in JDK 17 by \f[B]JEP
403\f[R] [https://openjdk.org/jeps/403].
.TP
\f[V]-XX:+ScavengeBeforeFullGC\f[R]
Enables GC of the young generation before each full GC.
This option is enabled by default.
It is recommended that you \f[I]don\[aq]t\f[R] disable it, because
scavenging the young generation before a full GC can reduce the number
of objects reachable from the old generation space into the young
generation space.
To disable GC of the young generation before each full GC, specify the
option \f[V]-XX:-ScavengeBeforeFullGC\f[R].
.TP
\f[V]-XX:RTMAbortRatio=\f[R]\f[I]abort_ratio\f[R]
Specifies the RTM abort ratio is specified as a percentage (%) of all
executed RTM transactions.
@ -3884,22 +3835,61 @@ results in an error of:
\f[V]Unrecognized VM option\f[R] \f[I]option-name\f[R]
.RE
.TP
\f[V]-XX:+UseHugeTLBFS\f[R]
\f[B]Linux only:\f[R] This option is the equivalent of specifying
\f[V]-XX:+UseLargePages\f[R].
This option is disabled by default.
This option pre-allocates all large pages up-front, when memory is
reserved; consequently the JVM can\[aq]t dynamically grow or shrink
large pages memory areas; see \f[V]-XX:UseTransparentHugePages\f[R] if
you want this behavior.
\f[V]-XX:InitialRAMFraction=\f[R]\f[I]ratio\f[R]
Sets the initial amount of memory that the JVM may use for the Java heap
before applying ergonomics heuristics as a ratio of the maximum amount
determined as described in the \f[V]-XX:MaxRAM\f[R] option.
The default value is 64.
.RS
.PP
Use the option \f[V]-XX:InitialRAMPercentage\f[R] instead.
.RE
.TP
\f[V]-XX:+UseSHM\f[R]
\f[B]Linux only:\f[R] Enables the JVM to use shared memory to set up
large pages.
\f[V]-XX:MaxRAMFraction=\f[R]\f[I]ratio\f[R]
Sets the maximum amount of memory that the JVM may use for the Java heap
before applying ergonomics heuristics as a fraction of the maximum
amount determined as described in the \f[V]-XX:MaxRAM\f[R] option.
The default value is 4.
.RS
.PP
Specifying this option disables automatic use of compressed oops if the
combined result of this and other options influencing the maximum amount
of memory is larger than the range of memory addressable by compressed
oops.
See \f[V]-XX:UseCompressedOops\f[R] for further information about
compressed oops.
.PP
Use the option \f[V]-XX:MaxRAMPercentage\f[R] instead.
.RE
.TP
\f[V]-XX:MinRAMFraction=\f[R]\f[I]ratio\f[R]
Sets the maximum amount of memory that the JVM may use for the Java heap
before applying ergonomics heuristics as a fraction of the maximum
amount determined as described in the \f[V]-XX:MaxRAM\f[R] option for
small heaps.
A small heap is a heap of approximately 125 MB.
The default value is 2.
.RS
.PP
Use the option \f[V]-XX:MinRAMPercentage\f[R] instead.
.RE
.TP
\f[V]-XX:+ScavengeBeforeFullGC\f[R]
Enables GC of the young generation before each full GC.
This option is enabled by default.
It is recommended that you \f[I]don\[aq]t\f[R] disable it, because
scavenging the young generation before a full GC can reduce the number
of objects reachable from the old generation space into the young
generation space.
To disable GC of the young generation before each full GC, specify the
option \f[V]-XX:-ScavengeBeforeFullGC\f[R].
.PP
For the lists and descriptions of options removed in previous releases
see the \f[I]Removed Java Options\f[R] section in:
.IP \[bu] 2
\f[B]The \f[VB]java\f[B] Command, Release 23\f[R]
[https://docs.oracle.com/en/java/javase/23/docs/specs/man/java.html]
.IP \[bu] 2
\f[B]The \f[VB]java\f[B] Command, Release 22\f[R]
[https://docs.oracle.com/en/java/javase/22/docs/specs/man/java.html]
.IP \[bu] 2