Re: [PATCH 0/8] Codespeed perf results

["Philip Oakley" <philipoakley@iee.org>]

From: "Christian Couder" <christian.couder@gmail.com>
> This patch series is built on top of cc/perf-run-config which recently
> graduated to master.
>
> It makes it possible to send perf results to a Codespeed server. See
> https://github.com/tobami/codespeed/ and web sites like
> http://speed.pypy.org/ which are using Codespeed.
>
> The end goal would be to have such a server always available to track
> how the different git commands perform over time on different kind of
> repos (small, medium, large, ...) with different optimizations on and
> off (split-index, libpcre2, BLK_SHA1, ...)

Dumb question: is this expected to also be able to do a retrospective on the 
performance of appropriate past releases? That would allow immediate 
performance comparisons, rather than needing to wait for a few releases to 
see the trends.

Philip

>
> With this series and a config file like:
>
> $ cat perf.conf
> [perf]
>        dirsOrRevs = v2.12.0 v2.13.0
>        repeatCount = 10
> sendToCodespeed = http://localhost:8000
> repoName = Git repo
> [perf "with libpcre"]
>        makeOpts = "DEVELOPER=1 USE_LIBPCRE=YesPlease"
> [perf "without libpcre"]
>        makeOpts = "DEVELOPER=1"
>
> One should be able to just launch:
>
> $ ./run --config perf.conf p7810-grep.sh
>
> and then get nice graphs in a Codespeed instance running on
> http://localhost:8000.
>
> Caveat
> ~~~~~~
>
> For now one has to create the "Git repo" environment in the Codespeed
> admin interface. (We send the perf.repoName config variable in the
> "environment" Codespeed field.) This is because Codespeed requires the
> environment fields to be created and does not provide a simple way to
> create these fields programmatically.
>
> I might try to work around this problem in the future.
>
> Links
> ~~~~~
>
> This patch series is available here:
>
> https://github.com/chriscool/git/commits/codespeed
>
> The cc/perf-run-config patch series was discussed here:
>
> v1: 
> https://public-inbox.org/git/20170713065050.19215-1-chriscool@tuxfamily.org/
> v2: 
> https://public-inbox.org/git/CAP8UFD2j-UFh+9awz91gtZ-jusq7EUOExMgURO59vpf29jXS4A@mail.gmail.com/
>
> Christian Couder (8):
>  perf/aggregate: fix checking ENV{GIT_PERF_SUBSECTION}
>  perf/aggregate: refactor printing results
>  perf/aggregate: implement codespeed JSON output
>  perf/run: use $default_value instead of $4
>  perf/run: add conf_opts argument to get_var_from_env_or_config()
>  perf/run: learn about perf.codespeedOutput
>  perf/run: learn to send output to codespeed server
>  perf/run: read GIT_TEST_REPO_NAME from perf.repoName
>
> t/perf/aggregate.perl | 164 
> +++++++++++++++++++++++++++++++++++---------------
> t/perf/run            |  29 +++++++--
> 2 files changed, 140 insertions(+), 53 deletions(-)
>
> -- 
> 2.15.1.361.g8b07d831d0
>