I think Linux pipes can usually hold 128 KiB. This surely configurable.
Update:
$ perl -e'
$|=1;
$SIG{PIPE} = sub { die("SIGPIPE") };
print "x" x 1..15_328;
' | sleep 0.25 # Child needs to be alive when the print occurs.
$ perl -e'
$|=1;
$SIG{PIPE} = sub { die("SIGPIPE") };
print "x" x 1..15_329;
' | sleep 0.25
SIGPIPE at -e line 3.
It's 15,328 on my Ubuntu (over WSL2) system. What a weird number. That's 1,056 bytes less than 16 KiB (16,384).
Seeking work! You can reach me at ikegami@adaelis.com
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