I think you should sample the X server instead of emacs.
emacs_Xt_next_event() is how emacs handles events. In X all the on-screen
work is actually done by another process, the X server (Xquartz in this
case). The poll() is for the descriptor used to comminucate between
X server and emacs. You should sample Xquartz and see what is taking so
There is a nice write-up in section 9 of this paper about using DTrace for
On Thu, 1 Nov 2007, William Gallafent - william(a)gallaf.net wrote:
Well, I did a quick "Sampler" run.
I just pressed page up and page down a few times, and all the time spent was
redrawing the text on the screen.
This time is apparently being spent in "poll$UNIX2003" from _XRead <-
_XReply <- XQueryColor <- xft_convert_color, and "select$DARWIN_EXTSN",
XtAppProcessEvent <- emacs_Xt_next_event.
Anybody know why this might be?
(There is a message with the actual Sampler run attached (24KB zipped!)
awaiting moderation ...)
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