Does mlock itself have a guaranteed maximum execution time? Is it guaranteed to return success under the relevant conditions? While that is an excellent way to

Does mlock itself have a guaranteed maximum execution time? Is it guaranteed to return success under the relevant conditions? While that is an excellent way to address the problem I mentioned, you still have to depend on more than just the guaranteed behaviour of the OS. > You likely wrote your comment on a POSIX-based interactive application. It just takes knowledge of how the system works and what the specifications are. I wrote my comment on an interactive POSIX application, yes, but I believe my browser depends on "reasonable performance" of OS-provided functions in order to be usable. It would be a fun exercise to evaluate such a program that supposedly did not. For any given program, I suspect I could patch the Linux kernel in such a way that the kernel still fulfilled all guaranteed behaviour while still making the program unusable.