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= TODO =
== Priority list ==
- watchdogs
- auto deploying of the component being tested
- experiment mode
== core.sh ==
=== Watchdog support ===
Add watchdog support to reboot the machine if the test is taking too long to
execute and the machine does not want to work anymore.
Systemd has some nice features which could be built-in smart-ezbench and ezbenchd
but this watchdog cannot be stopped or re-programmed during compilation which may
take any amount of time.
More investigation needs to be made.
=== Profiles ===
- Add auto-deployment support which would download from the git repo of
interest and setup ezbench to make use of it.
- Add information about how to create working URLs for every commit SHA1, this
is useful when creating reports.
=== Tests ===
- Auto deploy benchmarks
- Do dependency checking a bit better so as we can report what is missing for
one benchmark
- Add a benchmark-testing mode that will run the benchmark a hundred time and
deduce the variance of it. This will be used by smart ezbench to figure out how
many runs are necessary.
=== Reset the environment to a previously-used one ===
When wanting to add data to a certain commit, we need to check the environment
did not change, or, if it did, make at least that the results do not have a
different average. At the very least, we should prevent adding data if anything
in the environment changed except volatile information like the throttling count.
== Reports ==
- Store the execution runid along with the value in the result file to avoid
mis-labeling run IDs and to detect execution errors!
=== Move commits to a different folder ===
The current report folder is kind of a mess because it potentially contains
thousands of files.
We could create one folder per commit and store the data there. The name could
be suffixed with the commit date.
=== Potentially share commit results between reports ===
Benchmarks take forever to run, so it really is infuriating to have to re-run
them over and over again when nothing changed!
This issue will be mitigated when Smart_Ezbench lands as one could copy the
benchmark results of a previous run in the new report folder to avoid
re-executing them. This would be made easy if using folders per commits.
The actual solution will be to store results in a separate folder with the state
that got used to generate them. This would allow re-using results when nothing
changed :)
In the mean time, we can store the results of each commits in a separate folder
=== Experiment mode ===
There is currently only one mode to ezbench, it is making a report.
This is not very convenient during the development phase as we often want to
compare different approches to a baseline.
The goal would be to remember what were the settings set for the baseline and
automatically run the experiment when asked to by the user.
At a user's wish (amd probably at the end of every run), a report should be
created to show the differences.
Upon changes to the baseline parameters (set of benchmarks, # of runs, ...), the
previous experiments should also be updated to contain all the needed data. This
allows the developer to add data over-night for a broader set of benchmarks or
reducing the variance by adding runs.
EDIT: Profiles already get us close to this, but not entirely. I will need to
think more about this
== Utils ==
=== Easy way to build the graphics stack from git ===
To ease up the set-up of the build environment which is also error-prone and
prone to having differences from machines to machines, we propose adding a bunch
of scripts that would set up the graphics stack from git, have sane defaults
values and work together.
Having such a script set could allow us to store the git SHA1 IDs and build-ids
in the generated binaries.
EDIT: Chad's script would be good for mesa already!
http://sarah.thesharps.us/2015/12/17/building-a-custom-intel-graphics-stack/
== gen_report.py ==
=== Allow filtering the results ===
There is a ton of data in a performance report. It would be nice if we could
filter the rest of the data when we unselect a benchmark in the trend view.
== env-dump ==
- Save the SHA1 of the config (zcat /proc/config.gz | sha1sum -) and compare
that to the SHA1_DB to get where it comes from. If it is not found in the DB,
I guess we will have to keep it as unknown and hope the kernel version is
enough information for us to check the config.
- Save the kernel parameters
- Save the list of modules loaded
- Save the configure command line in the SHA1-DB
- Add a way to save storage by storing a diff with a previous report. This
means we need to add support for applying a patch
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