| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Peter Geoghegan <pg(at)bowt(dot)ie>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Unimpressed with pg_attribute_always_inline |
| Date: | 2018-01-09 01:30:10 |
| Message-ID: | 20180109013010.4e3htwvs3aza2ehw@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
Hi,
On 2018-01-08 20:20:09 -0500, Tom Lane wrote:
> No, you have it right. I checked locally and confirmed Andres' assertion
> that by default, gcc (my version anyway) is not persuaded to inline
> ExecHashJoinImpl simply by "inline", but "always_inline" persuades it.
> Maybe at some level higher than -O2, or with some other weird flag,
> it would do what we want; but we probably don't want to mess with global
> compiler flags for this.
There's -finline-limit=n, but as you say, I don't think we want to mess
with this.
Greetings,
Andres Freund
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