[Bug 3820] Around 5 second delay when starting an X11 application

bugzilla-daemon at mindrot.org bugzilla-daemon at mindrot.org
Mon Jun 2 14:23:50 AEST 2025


https://bugzilla.mindrot.org/show_bug.cgi?id=3820

--- Comment #7 from Darren Tucker <dtucker at dtucker.net> ---
(In reply to Damien Miller from comment #5)
> Created attachment 3880 [details]
> Disable timing obfuscation more aggressively when X11 channels active
> 
> This is what I mean. It would benefit from some testing.

This patch doesn't seem to make a noticeable difference for me.

Without patch:
$. /ssh -Y -p 2022 -i ~/.ssh/id_ed25519 -o identitiesonly=yes localhost
-tt time xterm -e true

real    0m4.818s
user    0m0.023s
sys     0m0.035s
Connection to localhost closed.

With patch:
$ ./ssh -Y -p 2022 -i ~/.ssh/id_ed25519 -o identitiesonly=yes localhost
-tt time xterm -e true

real    0m4.783s
user    0m0.021s
sys     0m0.046s
Connection to localhost closed.

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