remove 'supports_vtime'

LizBing · Dec 15, 2023 · c0d89b4 · c0d89b4
1 parent bdebf19
commit c0d89b4
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Showing 4 changed files with 1 addition and 10 deletions.
diff --git a/src/hotspot/os/posix/os_posix.cpp b/src/hotspot/os/posix/os_posix.cpp
@@ -1434,8 +1434,6 @@ jlong os::elapsed_frequency() {
   return NANOSECS_PER_SEC; // nanosecond resolution
 }
 
-bool os::supports_vtime() { return true; }
-
 // Return the real, user, and system times in seconds from an
 // arbitrary fixed point in the past.
 bool os::getTimesSecs(double* process_real_time,

diff --git a/src/hotspot/os/windows/os_windows.cpp b/src/hotspot/os/windows/os_windows.cpp
@@ -1049,8 +1049,6 @@ FILETIME java_to_windows_time(jlong l) {
   return result;
 }
 
-bool os::supports_vtime() { return true; }
-
 double os::elapsedVTime() {
   FILETIME created;
   FILETIME exited;

diff --git a/src/hotspot/share/gc/g1/g1ConcurrentRefineThread.hpp b/src/hotspot/share/gc/g1/g1ConcurrentRefineThread.hpp
@@ -74,11 +74,7 @@ class G1ConcurrentRefineThread: public ConcurrentGCThread {
   // Update concurrent refine threads stats.
   // If we are in Primary thread, we additionally update CPU time tracking.
   virtual void track_usage() {
-    if (os::supports_vtime()) {
-      _vtime_accum = (os::elapsedVTime() - _vtime_start);
-    } else {
-      _vtime_accum = 0.0;
-    }
+    _vtime_accum = (os::elapsedVTime() - _vtime_start);
   };
 
   // Helper for do_refinement_step implementations.  Try to perform some

diff --git a/src/hotspot/share/runtime/os.hpp b/src/hotspot/share/runtime/os.hpp
@@ -281,7 +281,6 @@ class os: AllStatic {
   // actually run.  The first function indicates whether the OS supports
   // this functionality for the current thread, and if so the second
   // returns the elapsed virtual time for the current thread.
-  static bool supports_vtime();
   static double elapsedVTime();
 
   // Return current local time in a string (YYYY-MM-DD HH:MM:SS).