Alain Spineux <aspineux <at> gmail.com> writes:
>
> Joe: The index is modified very often and need to be flushed at
> regular interval, I don't want to handle read and write.
> JB: I already use mmap.
> JD: I already tried posix_fadvise with POSIX_FADV_WILLNEED, but this
> is not rock solid, if not used for a long time, data are not in the
> cache anymore.
> Bryn: mlock is what I was looking for. I'll make a try now.
> ...
I do not know if you are aware of:
$ man mmap
...
MAP_LOCKED (since Linux 2.5.37)
Lock the pages of the mapped region into memory in the manner of
mlock(2). This flag is ignored in older kernels.
...
JB
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