The Hermit Hacker <scrappy@hub.org> writes:
> Just trying to start up a 'mini-process' of -B 8 -N 4, and it tells me
> that -N must be >= 16 ... why?
You misread it --- -N can be as small as you like, but we don't allow
a really tiny -B. To quote the code:
if (NBuffers < 2 * MaxBackends || NBuffers < 16) { /* Do not accept -B so small that backends are likely to
starvefor * lack of buffers. The specific choices here are somewhat arbitrary. */ fprintf(stderr,
"%s:-B must be at least twice -N and at least 16.\n", progname); exit(1); }
I'm not even real sure that -B 16 is going to work well if you throw
complex queries at it --- we've not stressed the system with small
numbers of buffers.
regards, tom lane
