Re: JIT compiling with LLVM v11

On 2018-03-09 15:28:19 -0500, Peter Eisentraut wrote:
> On 3/6/18 15:16, Andres Freund wrote:
> > 2) Don't load the JIT provider until fully needed. Right now
> >    jit_compile_expr() will load the jit provider even if not really
> >    needed. We should probably move the first two return blocks in
> >    llvm_compile_expr() into jit_compile_expr(), to avoid that.
> 
> I see that you have implemented that, but it doesn't seem to have helped
> with my make installcheck times.

What's the exact comparison you're looking at?

I think that's largely that unnecessary trivial queries get JITed and
optimized, because the stats are entirely completely off.

Greetings,

Andres Freund