Re: Query is over 2x slower with jit=on - Mailing list pgsql-hackers

Hi,

On 2018-09-25 12:50:34 -0700, Andres Freund wrote:
> On 2018-09-25 01:47:49 -0700, Andres Freund wrote:
> > Planning Time: 0.152 ms
> > JIT:
> >   Functions: 4
> >   Options: Inlining true, Optimization true, Expressions true, Deforming true
> >   Timing: Generation 0.955 ms, Inlining 157.422 ms, Optimization 11.751 ms, Emission 11.454 ms, Total 181.582 ms
> > Execution Time: 184.197 ms
> 
> With parallelism on, this is the aggregated cost of doing JIT
> compilation. I wonder if, in VERBOSE mode, we should separately display
> the cost of JIT for the leader.  Comments?

I've pushed the change without that bit - it's just a few additional
lines if we want to change that.

Greetings,

Andres Freund