From ab10ae902d8aa7c2b98fd080a7458127b1b8e648 Mon Sep 17 00:00:00 2001
From: Havoc Pennington <hp@redhat.com>
Date: Sun, 11 May 2003 07:59:08 +0000
Subject: 2003-05-11  Havoc Pennington  <hp@pobox.com>

	Write a "test-profile" that does echo client-server with threads;
	profile reveals lock contention, memcpy/realloc of buffers, and
	UTF-8 validation as hot spots. 20% of lock contention eliminated
	with dbus_atomic_inc/dec implementation on x86.  Much remaining
	contention is global mempool locks for GList and DBusList.

	* dbus/dbus-sysdeps.c (_dbus_atomic_inc, _dbus_atomic_dec): add
	x86 implementation

	* dbus/dbus-connection.c (struct DBusConnection): use
	dbus_atomic_t for the reference count

	* dbus/dbus-message.c (struct DBusMessage): declare
	dbus_atomic_t values as volatile

	* configure.in: code to detect ability to use atomic integer
	operations in assembly, from GLib patch

	* dbus/dbus-internals.c (_dbus_verbose_real): call getpid every
	time, tired of it being wrong in threads and forked processes

	* glib/test-profile.c: a little program to bounce messages back
	and forth between threads and eat CPU

	* dbus/dbus-connection.c: add debug spew macros for debugging
	thread locks; include config.h at top; fix deadlock in
	dbus_connection_flush()
---
 glib/Makefile.am | 33 ++++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 11 deletions(-)

(limited to 'glib/Makefile.am')

diff --git a/glib/Makefile.am b/glib/Makefile.am
index d9edf6f5..ebdb932f 100644
--- a/glib/Makefile.am
+++ b/glib/Makefile.am
@@ -13,21 +13,11 @@ libdbus_glib_1_la_SOURCES = 			\
 
 libdbus_glib_1_la_LIBADD= $(DBUS_GLIB_LIBS) $(top_builddir)/dbus/libdbus-1.la
 
-
 if DBUS_BUILD_TESTS
 
 if HAVE_GLIB_THREADS
-    THREAD_APPS=test-thread-server test-thread-client
-endif
-
-noinst_PROGRAMS= test-dbus-glib $(THREAD_APPS)
-
-test_dbus_glib_SOURCES=				\
-	test-dbus-glib.c
-
-test_dbus_glib_LDADD= $(top_builddir)/glib/libdbus-glib-1.la
+THREAD_APPS=test-thread-server test-thread-client test-profile
 
-if HAVE_GLIB_THREADS
 test_thread_server_SOURCES=				\
 	test-thread-server.c				\
 	test-thread.h
@@ -41,4 +31,25 @@ test_thread_client_SOURCES=				\
 test_thread_client_LDADD= $(DBUS_GLIB_THREADS_LIBS) $(top_builddir)/glib/libdbus-glib-1.la 
 endif
 
+noinst_PROGRAMS= test-dbus-glib $(THREAD_APPS)
+
+test_dbus_glib_SOURCES=				\
+	test-dbus-glib.c
+
+test_dbus_glib_LDADD= $(top_builddir)/glib/libdbus-glib-1.la
+
+else
+### not building tests
+
+if HAVE_GLIB_THREADS
+noinst_PROGRAMS=test-profile
+endif
+
 endif
+
+if HAVE_GLIB_THREADS
+test_profile_SOURCES=				\
+	test-profile.c
+
+test_profile_LDADD= $(DBUS_GLIB_THREADS_LIBS) $(top_builddir)/glib/libdbus-glib-1.la 
+endif
\ No newline at end of file
-- 
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