src/hotspot/share/gc/z/zPhysicalMemory.cpp

*** 20,29 ****
--- 20,30 ----
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  #include "precompiled.hpp"
+ #include "gc/shared/gcLogPrecious.hpp"
  #include "gc/z/zAddress.inline.hpp"
  #include "gc/z/zGlobals.hpp"
  #include "gc/z/zLargePages.inline.hpp"
  #include "gc/z/zNUMA.inline.hpp"
  #include "gc/z/zPhysicalMemory.inline.hpp"
*** 294,324 ****
  
    // If uncommit is not explicitly disabled, max capacity is greater than
    // min capacity, and uncommit is supported by the platform, then uncommit
    // will be enabled.
    if (!ZUncommit) {
!     log_info(gc, init)("Uncommit: Disabled");
      return;
    }
  
    if (max_capacity == min_capacity) {
!     log_info(gc, init)("Uncommit: Implicitly Disabled (-Xms equals -Xmx)");
      FLAG_SET_ERGO(ZUncommit, false);
      return;
    }
  
    // Test if uncommit is supported by the operating system by committing
    // and then uncommitting a granule.
    ZPhysicalMemory pmem(ZPhysicalMemorySegment(0, ZGranuleSize, false /* committed */));
    if (!commit(pmem) || !uncommit(pmem)) {
!     log_info(gc, init)("Uncommit: Implicitly Disabled (Not supported by operating system)");
      FLAG_SET_ERGO(ZUncommit, false);
      return;
    }
  
!   log_info(gc, init)("Uncommit: Enabled");
!   log_info(gc, init)("Uncommit Delay: " UINTX_FORMAT "s", ZUncommitDelay);
  }
  
  void ZPhysicalMemoryManager::nmt_commit(uintptr_t offset, size_t size) const {
    // From an NMT point of view we treat the first heap view (marked0) as committed
    const uintptr_t addr = ZAddress::marked0(offset);
--- 295,325 ----
  
    // If uncommit is not explicitly disabled, max capacity is greater than
    // min capacity, and uncommit is supported by the platform, then uncommit
    // will be enabled.
    if (!ZUncommit) {
!     log_info_p(gc, init)("Uncommit: Disabled");
      return;
    }
  
    if (max_capacity == min_capacity) {
!     log_info_p(gc, init)("Uncommit: Implicitly Disabled (-Xms equals -Xmx)");
      FLAG_SET_ERGO(ZUncommit, false);
      return;
    }
  
    // Test if uncommit is supported by the operating system by committing
    // and then uncommitting a granule.
    ZPhysicalMemory pmem(ZPhysicalMemorySegment(0, ZGranuleSize, false /* committed */));
    if (!commit(pmem) || !uncommit(pmem)) {
!     log_info_p(gc, init)("Uncommit: Implicitly Disabled (Not supported by operating system)");
      FLAG_SET_ERGO(ZUncommit, false);
      return;
    }
  
!   log_info_p(gc, init)("Uncommit: Enabled");
!   log_info_p(gc, init)("Uncommit Delay: " UINTX_FORMAT "s", ZUncommitDelay);
  }
  
  void ZPhysicalMemoryManager::nmt_commit(uintptr_t offset, size_t size) const {
    // From an NMT point of view we treat the first heap view (marked0) as committed
    const uintptr_t addr = ZAddress::marked0(offset);