From: | Julien Rouhaud <rjuju123(at)gmail(dot)com> |
---|---|
To: | Magnus Hagander <magnus(at)hagander(dot)net> |
Cc: | PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
Subject: | Re: Expose JIT counters/timing in pg_stat_statements |
Date: | 2022-02-25 16:43:15 |
Message-ID: | 20220225164315.c4naqnqb4gdzlpy6@jrouhaud |
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Lists: | pgsql-hackers |
On Fri, Feb 25, 2022 at 05:38:45PM +0100, Magnus Hagander wrote:
>
> Per some off-list discussion with Julien, we have clearly been talking
> in slightly different terms. So let's summarize the options into what
> theÿ́d actually be:
>
> Option 0: what is int he patch now
>
> Option 1:
> jit_count - number of executions using jit
> total_jit_time - for sum of functions+inlining+optimization+emission time
> min_jit_time - for sum of functions+inlining+optimization+emission time
> max_jit_time - for sum of functions+inlining+optimization+emission time
> mean_jit_time - for sum of functions+inlining+optimization+emission time
> stddev_jit_time - for sum of functions+inlining+optimization+emission time
> jit_functions - number of functions
> jit_inlining_count - number of executions where inlining happened
> jit_optimization_count - number of executions where optimization happened
> jit_emission_count - number of executions where emission happened
>
> Option 2:
> jit_count
> jit_functions
> jit_generation_time
> jit_inlining_count
> jit_inlining_time
> jit_optimization_count
> jit_optimization_time
> jit_emission_count
> jit_emission_time
I'm for option 2, I think it's important to have the timing details for
inlining and optimization and be able to compute correct stats.
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