| From: | Peter Eisentraut <peter(at)eisentraut(dot)org> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Jelte Fennema-Nio <postgres(at)jeltef(dot)nl>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Michael Paquier <michael(at)paquier(dot)xyz>, Nazir Bilal Yavuz <byavuz81(at)gmail(dot)com>, Alexander Lakhin <exclusion(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Speed up clean meson builds by ~25% |
| Date: | 2024-05-17 22:35:08 |
| Message-ID: | 9a3271ba-7896-46fe-9ae7-711b5565fbd9@eisentraut.org |
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| Lists: | pgsql-hackers |
On 17.05.24 23:01, Robert Haas wrote:
> On Fri, May 17, 2024 at 4:59 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> As I mentioned upthread, I'm more worried about confusing error
>> reports than the machine time.
>
> Well, Jelte fixed that.
>
>> I grant that there are people who are more affected, but still, I'd
>> just as soon not contort the build rules for a temporary problem.
>
> Arguably by doing this, but I don't think it's enough of a contortion
> to get excited about.
>
> Anyone else want to vote?
I retested the patch from 2024-04-07 (I think that's the one that "fixed
that"? There are multiple "v1" patches in this thread.) using gcc-14
and clang-18, with ccache disabled of course. The measured effects of
the patch are:
gcc-14: 1% slower
clang-18: 3% faster
So with that, it doesn't seem very interesting.
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