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6554406: Change switch UseVMInterruptibleIO default to false (sol)

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The default value of UseVMInterruptibleIO is changed to false for JDK 7, but the default isn't changed for JDK 6 and earlier.

Reviewed-by: never, acorn, dholmes, kamg, alanb
This commit is contained in:
Xiaobin Lu 2008-11-22 00:16:09 -08:00
parent e64aa947c4
commit 85138023c1
2 changed files with 9 additions and 3 deletions
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7
hotspot/src/share/vm/runtime/arguments.cpp
View File

@ -2322,7 +2322,12 @@ SOLARIS_ONLY(
return JNI_ERR;
}
}
// Change the default value for flags which have different default values
// when working with older JDKs.
if (JDK_Version::current().compare_major(6) <= 0 &&
FLAG_IS_DEFAULT(UseVMInterruptibleIO)) {
FLAG_SET_DEFAULT(UseVMInterruptibleIO, true);
}
return JNI_OK;
}

5
hotspot/src/share/vm/runtime/globals.hpp
View File

@ -3262,9 +3262,10 @@ class CommandLineFlags {
diagnostic(bool, PrintDTraceDOF, false, \
"Print the DTrace DOF passed to the system for JSDT probes") \
\
product(bool, UseVMInterruptibleIO, true, \
product(bool, UseVMInterruptibleIO, false, \
"(Unstable, Solaris-specific) Thread interrupt before or with " \
"EINTR for I/O operations results in OS_INTRPT")
"EINTR for I/O operations results in OS_INTRPT. The default value"\
" of this flag is true for JDK 6 and earliers")
/*