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+--- Thread: opening /dev/null (/thread-23656.html)
opening /dev/null - Skaperen - Jan-10-2020
is it true that when opening /dev/null for read, write, or append, it doesn't really do any syscalls, but just changes some function reference around so it totally fakes all the dummy I/O for a performance boost?
RE: opening /dev/null - ndc85430 - Jan-10-2020
Could you verify that using
strace (assuming Linux)?
RE: opening /dev/null - Skaperen - Jan-11-2020
you don't really know.