[sqlite] (msync()+) If mmap_size is big enough, read() will never be needed, so what about enabling mmap on platforms that "lack of a unified buffer cache"?

[Mikael]

Hi,

If mmap_size is big enough, read() will never be needed, so what about
enabling mmap on platforms that "lack of a unified buffer cache"?

I mean, on a 64bit platform, setting mmap_size to say 1TB should be fine -

So what about enabling mmap_size on platforms that "lack of a unified
buffer cache"?


Also, if read() by some reason would be needed, there's msync() which is
like a flush(), so here the "lack of a unified buffer cache" shouldn't be
an issue anyhow?


Thanks!