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bug#41077: [feature/native-comp] virtual memory exhausted
From: |
Kévin Le Gouguec |
Subject: |
bug#41077: [feature/native-comp] virtual memory exhausted |
Date: |
Mon, 11 May 2020 11:12:47 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Ah, right; I don't know what I was thinking. I guess I assumed that the
benchmarks covered Emacs subroutines, so not compiling the benchmark
sources would not have a big impact. I got that completely backward 🤦
Andrea Corallo <akrl@sdf.org> writes:
> Other option maybe quicker: you can manually native compile the
> benchmarcks and the native emacs instance should load them.
>
> You will see that when a .eln is loaded the message is a little
> different to indicate that.
I went with this option, using M-: (native-compile "foo.el"). I had one
last surprise: the native-compiled fibn test exhausts the laptop's
memory (2GB RAM + 2GB swap). I recompiled fibn.eln setting comp-speed
to 1 and 0, but the result was the same.
Here are the results: except for pidigits, the improvements are quite
noticeable :) I'll post a write-up (giving my hardware specs and
computing the speedups) to emacs-devel when I find the time.
* Results
** master
| test | non-gc avg (s) | gc avg (s) | gcs avg | tot avg (s) | tot
avg err (s) |
|----------------+----------------+------------+---------+-------------+-----------------|
| bubble-no-cons | 122.06 | 0.22 | 4 | 122.28 |
0.43 |
| bubble | 49.22 | 26.59 | 491 | 75.81 |
0.18 |
| fibn-rec | 62.00 | 0.00 | 0 | 62.00 |
0.00 |
| fibn-tc | 133.97 | 87.95 | 1520 | 221.91 |
0.36 |
| inclist | 174.41 | 0.06 | 1 | 174.47 |
0.00 |
| listlen-tc | 68.04 | 0.00 | 0 | 68.04 |
0.02 |
| pidigits | 56.97 | 36.60 | 605 | 93.57 |
0.53 |
|----------------+----------------+------------+---------+-------------+-----------------|
| total | 666.67 | 151.42 | 2621 | 818.08 |
0.79 |
** feature/native-comp
| test | non-gc avg (s) | gc avg (s) | gcs avg | tot avg (s) | tot
avg err (s) |
|----------------+----------------+------------+---------+-------------+-----------------|
| bubble-no-cons | 24.53 | 0.22 | 4 | 24.75 |
0.02 |
| bubble | 17.83 | 5.79 | 100 | 23.62 |
0.27 |
| fibn-rec | 18.63 | 0.00 | 0 | 18.63 |
0.01 |
| fibn-tc | 67.39 | 86.45 | 1519 | 153.84 |
0.07 |
| inclist | 10.99 | 0.06 | 1 | 11.05 |
0.04 |
| listlen-tc | 0.82 | 0.00 | 0 | 0.82 |
0.00 |
| pidigits | 54.03 | 36.84 | 605 | 90.87 |
0.69 |
|----------------+----------------+------------+---------+-------------+-----------------|
| total | 194.22 | 129.35 | 2229 | 323.57 |
0.75 |
Again, thanks for your help!
- bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN, (continued)
- bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN, Andrea Corallo, 2020/05/04
- bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN, Andrea Corallo, 2020/05/04
- bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN, Kévin Le Gouguec, 2020/05/04
- bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN, Andrea Corallo, 2020/05/04
- bug#41077: [feature/native-comp] virtual memory exhausted (was: bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN), Kévin Le Gouguec, 2020/05/06
- Message not available
- bug#41077: [feature/native-comp] virtual memory exhausted, Andrea Corallo, 2020/05/06
- bug#41077: [feature/native-comp] virtual memory exhausted, Kévin Le Gouguec, 2020/05/10
- bug#41077: [feature/native-comp] virtual memory exhausted, Andrea Corallo, 2020/05/10
- bug#41077: [feature/native-comp] virtual memory exhausted, Kévin Le Gouguec, 2020/05/10
- bug#41077: [feature/native-comp] virtual memory exhausted, Andrea Corallo, 2020/05/10
- bug#41077: [feature/native-comp] virtual memory exhausted,
Kévin Le Gouguec <=
- bug#41077: [feature/native-comp] virtual memory exhausted, Andrea Corallo, 2020/05/11