From: pukkamustard <pukkamustard@posteo.net>
To: Julien Lepiller <julien@lepiller.eu>
Cc: 46806@debbugs.gnu.org
Subject: [bug#46806] [PATCH] gnu: ocaml-4.07: Bootstrap.
Date: Mon, 01 Mar 2021 10:16:14 +0100 [thread overview]
Message-ID: <86lfb7fd41.fsf@posteo.net> (raw)
In-Reply-To: <66443FC4-A5EB-44F2-BCA3-E35962DC2FE0@lepiller.eu>
I managed to build camlboot and ocaml@4.07 with your patches.
> Would be fantastic if you could report build time for camlboot
> too :).
Build time (on a quad-core i7 laptop):
```
$ time ./pre-inst-env guix build camlboot --no-offload
.
.
.
successfully built
/gnu/store/ddi5n28hsrgvb89r8vjs0rfvapxfbaj2-camlboot-0.0.0-0.506280c.drv
/gnu/store/79bqayhrc6qfr2k7pfk7fn6lim0f8cfx-camlboot-0.0.0-0.506280c
real 322m35.119s
user 0m1.523s
sys 0m0.140s
```
ocaml@4.07 with your patches applied:
```
$ time ./pre-inst-env guix build ocaml@4.07 --no-offload
successfully built
/gnu/store/sdxybpxzjhib5ijn3fx3r29ycp5vvafd-ocaml-4.07.1.drv
/gnu/store/cniid9xi3dck7kdpfm77h56h1s0701fm-ocaml-4.07.1
real 17m52.923s
user 0m9.268s
sys 0m1.013s
```
ocaml@4.07 at master:
```
$ time ./pre-inst-env guix build ocaml@4.07 --no-offload --check
successfully built
/gnu/store/v599h0bhpyh2rq4nrnqqf56lwbsf0f71-ocaml-4.07.1.drv
successfully built
/gnu/store/v599h0bhpyh2rq4nrnqqf56lwbsf0f71-ocaml-4.07.1.drv
/gnu/store/s7j0vl88zakkdcyvw1jw8cypfzi6ljnd-ocaml-4.07.1
real 21m44.000s
user 0m14.546s
sys 0m1.217s
```
> The result should be almost identical to our current ocaml-4.07,
> though there are some due to different output directory being
> embedded.
Checked some random files in both ocaml's with diffoscope and can
confirm that differences seem to be mostly different output
directories.
Haven't run diffoscope on everything as that would take quite some
time...
-pukkamustard
>>
>>Fantastic! Thank you and thanks to the camlboot project! I will
>>try and
>>build this tonight.
>>
>>Julien Lepiller <julien@lepiller.eu> writes:
>>
>>> Hi Guix!
>>>
>>> This small series adds camlboot, a project to reimplement a
>>> bootstrap
>>> for OCaml, which lets us remove the pre-built
>>> boot/ocaml{c,lex}
>>> :)
>>>
>>> The first patch builds the bootstraped ocamlc and ocamllex.
>>> This
>>> takes
>>> around 4 hours to build. The second patch rebuilds them using
>>> the source
>>> code for ocaml 4.07.1, instead of the modified sources used in
>>> camlboot, and reuse them to run the main Makefile (make
>>> world.opt).
>>>
>>> As a result, we have identical files for this bootstrap and
>>> the
>>> unbootstrapped OCaml (up to output store paths and hash of
>>> some
>>> files
>>> that get embedded in native files, which differ because of the
>>> different output path).
next prev parent reply other threads:[~2021-03-01 9:17 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-26 23:13 [bug#46806] [PATCH] gnu: ocaml-4.07: Bootstrap Julien Lepiller
2021-02-28 2:09 ` Julien Lepiller
2021-02-28 2:29 ` Julien Lepiller
2021-03-03 0:22 ` zimoun
2021-03-03 12:54 ` zimoun
2021-02-28 9:19 ` pukkamustard
2021-02-28 10:57 ` Julien Lepiller
2021-03-01 9:16 ` pukkamustard [this message]
2021-03-01 11:44 ` Julien Lepiller
2021-03-01 12:04 ` pukkamustard
2021-03-03 13:27 ` zimoun
2021-03-03 13:46 ` Julien Lepiller
2021-03-03 14:05 ` zimoun
2021-03-03 16:14 ` bug#46806: " Julien Lepiller
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