How to make konsole caption show current path / program running?
The only thing it show is name of running shell. And updates the names of running processes very slowly.

Bash works fine in xterm.
Zsh works with something like this:
precmd() { print -Pn "e]0;%~a" }
preexec() { print -Pn "e]0;$1a" }

But konsole doesn't update caption (bash/zsh/whatever).

If you are using the KDE4 Konsole, change the tab title format to "%n:%D",where %n expands to the name of current running process and %D expands to the path of the current working directory.