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7040485: Use transparent huge page on linux by default

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Turn on UseLargePages by default but try only HugeTLBFS method if it is not explicitly specified on the command line.

Reviewed-by: ysr
This commit is contained in:
Igor Veresov 2011-04-29 12:39:32 -07:00
parent 5b3550c107
commit 2abb1bbd58
5 changed files with 20 additions and 23 deletions
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8
hotspot/src/os/windows/vm/os_windows.cpp
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@ -2762,8 +2762,8 @@ static void cleanup_after_large_page_init() {
_hToken = NULL;
}
bool os::large_page_init() {
if (!UseLargePages) return false;
void os::large_page_init() {
if (!UseLargePages) return;
// print a warning if any large page related flag is specified on command line
bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) ||
@ -2808,7 +2808,7 @@ bool os::large_page_init() {
}
cleanup_after_large_page_init();
return success;
UseLargePages = success;
}
// On win32, one cannot release just a part of reserved memory, it's an
@ -3561,7 +3561,7 @@ jint os::init_2(void) {
#endif
}
FLAG_SET_DEFAULT(UseLargePages, os::large_page_init());
os::large_page_init();
// Setup Windows Exceptions