| From: | Jelte Fennema-Nio <postgres(at)jeltef(dot)nl> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Peter Eisentraut <peter(at)eisentraut(dot)org>, 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: | 2024-04-17 14:51:49 |
| Message-ID: | CAGECzQQ=usnyPw7zVzOVECA=57g9Qrav2_kJHui0gXOVV_mRnw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, 17 Apr 2024 at 16:00, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Break gram.y (say, misspell some token in a production) and
> see what happens. The behavior's likely to be timing sensitive
> though.
Thanks for clarifying. It took me a little while to break gram.y in
such a way that I was able to consistently reproduce, but I managed in
the end using the attached small diff.
And then running ninja in non-parallel mode:
ninja -C build all -j1
As I expected this problem was indeed fairly easy to address by still
building "backend/parser" before "interfaces". See attached patch.
| Attachment | Content-Type | Size |
|---|---|---|
| v1-0001-Speed-up-clean-parallel-meson-builds-a-lot.patch | application/octet-stream | 3.2 KB |
| trigger-confusing-build-error.diff | application/octet-stream | 353 bytes |
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