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hotspot/src/os/solaris/vm/thread_solaris.inline.hpp

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+/*
+ * Copyright 2002-2003 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+// Thread::current is "hot" it's called > 128K times in the 1st 500 msecs of
+// startup.
+// ThreadLocalStorage::thread is warm -- it's called > 16K times in the same
+// period.   Thread::current() now calls ThreadLocalStorage::thread() directly.
+// For SPARC, to avoid excessive register window spill-fill faults,
+// we aggressively inline these routines.
+
+inline Thread* ThreadLocalStorage::thread()  {
+  // don't use specialized code if +UseMallocOnly -- may confuse Purify et al.
+  debug_only(if (UseMallocOnly) return get_thread_slow(););
+
+  uintptr_t raw = pd_raw_thread_id();
+  int ix = pd_cache_index(raw);
+  Thread *Candidate = ThreadLocalStorage::_get_thread_cache[ix];
+  if (Candidate->_self_raw_id == raw) {
+    // hit
+    return Candidate;
+  } else {
+    return ThreadLocalStorage::get_thread_via_cache_slowly(raw, ix);
+  }
+}