[cperciva]

And does ^T map to SIGUSR1? That's the other thing which makes it so useful in BSD.

[saagarjha]

You wouldn’t want it to, because the default behavior for SIGUSR1 is to terminate.

[cperciva]

Exactly. Whereas on BSD hitting ^T is (a) very likely to print useful information, and (b) if it doesn't do that, won't do anything at all.