Re: Alvaro Herrera 2018-03-05 <20180305165609.kq5y7uzy64o45vsg@alvherre.pgsql> > The reason I noticed is I wondered about the amount of open() calls > (plus zlib function calls) we would save by keeping an FD open to > /dev/null, rather than opening it over and over for each object -- ie., > maybe not touch setFilePath() at all, if possible. That looks perhaps > too invasive, so maybe not. But do audit other callsites that may open > files.
In normal operation, the files are also opened individually, so special-casing /dev/null seems overly specific to me (and I'd be very surprised if it made any difference.) For the feature to be useful in practise, it needs documentation. People won't expect -Fd -f /dev/null to work because /dev/null is not a directory. Otherwise, +1 from me. Christoph
