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src/os/solaris/vm/thread_solaris.inline.hpp@bd441136a5ce (annotated)

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

Thu, 19 Mar 2009 09:13:24 -0700

author

kvn

date

Thu, 19 Mar 2009 09:13:24 -0700

changeset 1082

bd441136a5ce

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

Merge

duke@435	1	/*
duke@435	2	* Copyright 2002-2003 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// Thread::current is "hot" it's called > 128K times in the 1st 500 msecs of
duke@435	26	// startup.
duke@435	27	// ThreadLocalStorage::thread is warm -- it's called > 16K times in the same
duke@435	28	// period. Thread::current() now calls ThreadLocalStorage::thread() directly.
duke@435	29	// For SPARC, to avoid excessive register window spill-fill faults,
duke@435	30	// we aggressively inline these routines.
duke@435	31
duke@435	32	inline Thread* ThreadLocalStorage::thread() {
duke@435	33	// don't use specialized code if +UseMallocOnly -- may confuse Purify et al.
duke@435	34	debug_only(if (UseMallocOnly) return get_thread_slow(););
duke@435	35
duke@435	36	uintptr_t raw = pd_raw_thread_id();
duke@435	37	int ix = pd_cache_index(raw);
duke@435	38	Thread *Candidate = ThreadLocalStorage::_get_thread_cache[ix];
duke@435	39	if (Candidate->_self_raw_id == raw) {
duke@435	40	// hit
duke@435	41	return Candidate;
duke@435	42	} else {
duke@435	43	return ThreadLocalStorage::get_thread_via_cache_slowly(raw, ix);
duke@435	44	}
duke@435	45	}