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ab10ae902d
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() |
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| .. | ||
| .cvsignore | ||
| dbus-glib.h | ||
| dbus-gmain.c | ||
| dbus-gthread.c | ||
| Makefile.am | ||
| test-dbus-glib.c | ||
| test-profile.c | ||
| test-thread-client.c | ||
| test-thread-server.c | ||
| test-thread.h | ||