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[Christian Ehrhardt  <1977687@xxxxxxxxxxxxxxxxxx>]

Hi Oibaf,
we (myself any many other Ubuntu developers I know) have seen the results. And as you said they were interesting but not always entirely clear how they got created.

The majority of the differences I've seen where on things like:
1. Install&run less other services - you could do that just as well on Ubuntu, we just come with a more comfortable default
2. Enable less optional features - they might stall other things
3. Compile things with more processor optimizations
4. Enable speedup features that only work on some platforms/systems
5. Tunables optimized for one, but negative for other workloads

For example tunables - quite often one can tune a system with tremendous
results if you happen to know the particular workload. But most of the
time such settings would degrade just as many other users as they would
help others - or worse.

Many HW features will - if enabled - exclude certain types of hardware
entirely. There are many case by case decisions.

We generally do these decisions on every feature, tunable and
optimization as they come up. And each time we ask ourselves like "does
it bring enough value to a majority of our users". We neither bluntly
"enable all we can find" nor "disable all that we can".

Ubuntu is designed to to work out of the box on a wide variety of
Hardware and for a wide variety of user groups - hence we can't always
use all the same config options used by others.

There is always work ongoing, evaluating features and optimizations
(gladly in recent years many optimizations are written in a way to
dynamically load and not add overhead otherwise) and tunables.

So you can be reassured that this test as well as feature/performance discussion in general wasn't missed. But this bug isn't about any particular change that one can fix/not-fix - or at least discuss about.
Therefore I'll mark it as "opinion" to reflect that since - as of right now - no one can really act on it.

If you - or anyone else - have individual "how about this feature/optimization/tunable" thought, by all means file a bug about it. There one can have a per case discussion.
But as I mentioned above "just helping a few while degrading others" is unlikely to become the default, that kind will always stay per user config with their workloads in mind.

** Changed in: apache2 (Ubuntu)
       Status: Confirmed => Opinion

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https://bugs.launchpad.net/bugs/1977687

Title:
  apache on Ubuntu 22.04 is several times slower than on other distros,
  according to Phoronix

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