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[PERF] Jackson reflection-free serialization/deserialization (#42946)

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* [PERF] Jackson reflection-free serialization/deserialization

Closes #42945

Signed-off-by: Martin Bartoš <mabartos@redhat.com>

* Update docs/guides/server/configuration-production.adoc

Co-authored-by: Alexander Schwartz <alexander.schwartz@gmx.net>
Signed-off-by: Martin Bartoš <mabartos@redhat.com>

* Docs improvements

Signed-off-by: Martin Bartoš <mabartos@redhat.com>

* Update docs/guides/server/configuration-production.adoc

Co-authored-by: Václav Muzikář <vaclav@muzikari.cz>
Signed-off-by: Martin Bartoš <mabartos@redhat.com>

* Polish the features template macros

Signed-off-by: Martin Bartoš <mabartos@redhat.com>

---------

Signed-off-by: Martin Bartoš <mabartos@redhat.com>
Co-authored-by: Alexander Schwartz <alexander.schwartz@gmx.net>
Co-authored-by: Václav Muzikář <vaclav@muzikari.cz>
This commit is contained in:
Martin Bartoš
2025-10-17 20:24:47 +02:00
committed by GitHub
parent b807a45091
commit 37bea126c7
12 changed files with 111 additions and 22 deletions
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docs/guides/server/configuration-production.adoc
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@@ -1,6 +1,7 @@
<#import "/templates/guide.adoc" as tmpl>
<#import "/templates/kc.adoc" as kc>
<#import "/templates/links.adoc" as links>
<#import "/templates/features.adoc" as features>
<@tmpl.guide
title="Configuring {project_name} for production"
@@ -87,4 +88,25 @@ export JAVA_OPTS_APPEND="-Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6A
See <@links.server id="caching" anchor="network-bind-address"/> for more details.
== Preview of enhanced HTTP performance
<@features.techpreview feature="http-optimized-serializers" additionalCommunityText="We gather more feedback on this feature to promote it to supported. Please, share your feedback about any issue in https://github.com/keycloak/keycloak/discussions/43484[this discussion]."/>
In production environments, the performance of the HTTP layer is critical.
Every request passes through it, making it a key factor in overall system responsiveness, scalability, and user experience.
This feature improves how {project_name} handles JSON data in HTTP requests and responses.
The result is a more efficient runtime with measurable benefits:
- ~5% increase in throughput
- More stable response times
- Reduced system resource usage
These improvements help ensure smoother, more predictable performance at scale while also lowering the operational cost of running production systems.
The only known tradeoff is that build time increases by ~6% as certain actions were moved to the build time instead of runtime.
You can enable this feature as follows:
<@kc.start parameters="--features=http-optimized-serializers"/>
</@tmpl.guide>