I've been trying to get objective measures of performance for Pango,
but I get strange and inconsistent crahes when I attempt to use the
Yi.Users.Cmcq config for Pango. I replaced the two lines (13/14) that
handle the timing with simply: time dist/build/yi/yi time "$@", which
reveals the various errors I'm getting:

* yi: Fatal IO error 4 (Interrupted system call) on X server :0.0.
* UI just hangs after typing one or two characters
* HackerMain.hs: line 15:  6282 Segmentation fault (line 15 is just
the 'time' command)
* yi: Fatal IO error 11 (Resource temporarily unavailable) on X
server :0.0.

I receive all these errors with the exact same config and binary, by
just running `sh HackerMain.hs -fpango' several times. I'm not sure
what's going on, but the Pango UI seems very prone to failure during
initialization.

Jeff Wheeler
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