On Fri, Apr 18, 2014 at 08:24:03PM +0400, Stanislav Vorobiov wrote: > From: Sangho Park <sangho1206.p...@samsung.com> > > g_poll has a problem on Windows when using > timeouts < 10ms, in glib/gpoll.c: > > /* If not, and we have a significant timeout, poll again with > * timeout then. Note that this will return indication for only > * one event, or only for messages. We ignore timeouts less than > * ten milliseconds as they are mostly pointless on Windows, the > * MsgWaitForMultipleObjectsEx() call will timeout right away > * anyway. > */ > if (retval == 0 && (timeout == INFINITE || timeout >= 10)) > retval = poll_rest (poll_msgs, handles, nhandles, fds, nfds, timeout); > > so whenever g_poll is called with timeout < 10ms it does > a quick poll instead of wait, this causes significant performance > degradation of QEMU, thus we should use WaitForMultipleObjectsEx > directly > > Signed-off-by: Stanislav Vorobiov <s.vorob...@samsung.com> > --- > include/glib-compat.h | 19 +++++++++ > include/qemu-common.h | 12 ------ > util/oslib-win32.c | 112 > +++++++++++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 131 insertions(+), 12 deletions(-)
What is the status of this patch? I haven't followed the discussions around the issue but can review/merge if there is agreement now. Stefan
