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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 51 |
1 files changed, 51 insertions, 0 deletions
@@ -1,5 +1,56 @@ 2003-05-11 Havoc Pennington <hp@pobox.com> + * dbus/dbus-marshal.c (_dbus_marshal_validate_arg): fix to avoid + calling _dbus_marshal_validate_arg() for every byte in a byte + array, etc. + + * dbus/dbus-message-handler.c: use atomic reference counting to + reduce number of locks slightly; the global lock in here sucks + + * dbus/dbus-connection.c + (_dbus_connection_update_dispatch_status_and_unlock): variant of + update_dispatch_status that can be called with lock held; then use + in a couple places to reduce locking/unlocking + (dbus_connection_send): hold the lock over the whole function + instead of acquiring it twice. + + * dbus/dbus-timeout.c (_dbus_timeout_new): handle OOM + + * bus/connection.c (bus_connections_setup_connection): fix access + to already-freed memory. + + * dbus/dbus-connection.c: keep a little cache of linked list + nodes, to avoid using the global linked list alloc lock in the + normal send-message case. Instead we just use the connection lock + that we already have to take. + + * dbus/dbus-list.c (_dbus_list_find_last): new function + + * dbus/dbus-sysdeps.c (_dbus_atomic_inc, _dbus_atomic_dec): + change to use a struct for the atomic type; fix docs, + they return value before increment, not after increment. + + * dbus/dbus-string.c (_dbus_string_append_4_aligned) + (_dbus_string_append_8_aligned): new functions to try to + microoptimize this operation. + (reallocate_for_length): break this out of set_length(), to + improve profile info, and also so we can consider inlining the + set_length() part. + + * dbus/dbus-message.c (dbus_message_new_empty_header): init data + strings with some preallocation, cuts down on our calls to realloc + a fair bit. Though if we can get the "move entire string to empty + string" optimization below to kick in here, it would be better. + + * dbus/dbus-string.c (_dbus_string_move): just call + _dbus_string_move_len + (_dbus_string_move_len): add a special case for moving + an entire string into an empty string; we can just + swap the string data instead of doing any reallocs. + (_dbus_string_init_preallocated): new function + +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 |