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8028391: Make the Min/MaxHeapFreeRatio flags manageable

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Made the flags Min- and MaxHeapFreeRatio manageable, and implemented support for these flags in ParallalGC.

Reviewed-by: sla, mgerdin, brutisso
This commit is contained in:
Jesper Wilhelmsson 2014-01-29 23:17:05 +01:00
parent 9d4f3dfd4f
commit 5301534dc3
11 changed files with 178 additions and 36 deletions
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12
hotspot/src/share/vm/services/management.cpp
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@ -1833,6 +1833,18 @@ JVM_ENTRY(void, jmm_SetVMGlobal(JNIEnv *env, jstring flag_name, jvalue new_value
succeed = CommandLineFlags::intxAtPut(name, &ivalue, Flag::MANAGEMENT);
} else if (flag->is_uintx()) {
uintx uvalue = (uintx)new_value.j;
if (strncmp(name, "MaxHeapFreeRatio", 17) == 0) {
FormatBuffer<80> err_msg("");
if (!Arguments::verify_MaxHeapFreeRatio(err_msg, uvalue)) {
THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), err_msg.buffer());
}
} else if (strncmp(name, "MinHeapFreeRatio", 17) == 0) {
FormatBuffer<80> err_msg("");
if (!Arguments::verify_MinHeapFreeRatio(err_msg, uvalue)) {
THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), err_msg.buffer());
}
}
succeed = CommandLineFlags::uintxAtPut(name, &uvalue, Flag::MANAGEMENT);
} else if (flag->is_uint64_t()) {
uint64_t uvalue = (uint64_t)new_value.j;