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perf/declared-skip-empty-renames

DateFormat

Handle_json_array

ISSUE-2321

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active_support_6_1_minimal

add-agents-md

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add_irb_in_gemfile_for_bundle_console_warning

add_numericality_validator

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api_override_singleton_methods

array-param-regression

as-explicit-kwarg

benchmark/results-machine-spec

body-metadata

bugfix/1577

bugfix/1970

bugfix/1986

bugfix/2041

bugfix/autoload

bugfix/memory-leak

build_with_registry

chore/4-0-0-release-docs

chore/agents-md-style-rules

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chore/coercion-tests

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chore/version-throughput-deltas

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compiled_endpoints

contract_scope_validator_public_schema

cookies_delegation

crush_desclared_params

custom-validator-namespace-lookup

declared-params-scope-kwarg

declared_params_optional_array

deprecate-positional-options-hash

deprecated_endpoint_return

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dynamic_registration

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enable_branch_coverage

enable_frozen_string_literal_ci

endpoint-options-path-aliasing

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endpoint_http_methods_kwarg

endpoint_path_kwarg

entity-dsl

eql-hash-consistency

erik/remove-faulty-documentation-about-blank-values

error-formatter-nil-guard

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fix/case-insensitive-media-types

fix/custom-type-coercer-symbolize-collection

fix/deprecation-horizon

fix/entity-lookup-own-class-first

fix/error-rendering-failsafe

fix/grape-exceptions-precedence

fix/greedy-route-params-for

fix/json-load-create-additions

fix/json-use-parse

fix/multixml-deprecation

fix/nested-array-validation-bypass

fix/path-param-encoding

fix/pin-json-below-3-legacy-gemfiles

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fix/redirect-plain-text-body

fix/reduce_base_route_array_allocation

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fix/router-request-time-map-mutation

fix/safe-default-rack-exception

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fix/variant-collection-coercer-to-s

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fix_2566_memory_leak

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optimize_api_documentation

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perf/formatter-content-negotiation

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perf/formatter-skip-rack-request

perf/header-copy-merge-bang

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perf/lazy-base-inheritable-new-values

perf/lazy-error-backtrace

perf/lazy-inheritable-setting-fields

perf/lazy-param-scope-tracker

perf/lazy-params-builder

perf/lazy-response-cookies

perf/path-normalizer-fast-path

perf/plain-hash-registry

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perf/primitive-coercer-identity-fast-path

perf/qualifying-params-given-only

perf/request-hot-path-polish

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perf/router-transaction-no-proc

perf/routing-args-in-place-merge

perf/routing-args-single-hash

perf/scrub-extension-only

perf/share-content-type-tables

perf/skip-capture-free-param-extraction

perf/skip-covered-neighbours

perf/skip-default-version-pattern

perf/skip-empty-validation-errors-alloc

perf/skip-redundant-routing-args-write

perf/skip-validation-backtrace

perf/stackable-empty-singleton

perf/union-match-path-captures

perf/version-capture-regexp

perf/versioner-options-ivars

perf/versioner-path-prefix

perf/versioner-prefix-each

perf/versioner-reuses-route-capture

precompiled_json

private_namespace_reverse_stackable_with_hash

private_within_namespace

query-http-method

rack_request_error

real-api-integration-test

reduce_array_alloc_on_setup

refactor/api-instance-dsl-modules

refactor/attrs_iterator

refactor/auth-dsl-kwargs

refactor/available-media-types-attr-reader

refactor/base-validator-encapsulation

refactor/coerce-options-data

refactor/de-morgan-conditions

refactor/declared-params-handler

refactor/declared_availability

refactor/define-method-cleanup

refactor/drop-indifferent-and-reverse-merge-requires

refactor/dsl-group-validators-dry

refactor/encapsulate-reverse-stackable

refactor/endpoint-options-data

refactor/endpoint-options-route-enabled

refactor/error-response-data

refactor/error-response-value-object

refactor/extract-handler-case-when

refactor/extract-path-normalizer

refactor/guard-clauses-style

refactor/inline-mustermann-grape

refactor/lazy-base-ancestor

refactor/middleware-cleanups

refactor/mountable-marker

refactor/named_kwargs_params_scope

refactor/nest-path-in-pattern

refactor/params-dsl-using-except-kwargs

refactor/precomputed-content-types-move

refactor/replace-tap-usages

refactor/rescue-from-explicit-first-arg

refactor/rescue-handler-dedup

refactor/router-pattern-delegation

refactor/router-simplification

refactor/shared-options-data

refactor/stateless-attributes-iterator

refactor/validates-pure-helpers

refactor/validation-errors-drop-enumerable

refactor/validations-spec-self-validate

refactor/version-guard-clause

refactor_available_media_types_in_header_middleware

refactor_declared_params_handling

refactor_http_headers

refactor_mime_type_for

refactor_route_setting_internal_usage

refactor_setting_get_or_set

refs/heads/master

refs/tags/v1.7.1

refs/tags/v1.8.0

refs/tags/v2.0.0

regression/json-error-formatter-double-wrap

release/3.2.1

remove-inheritable-values

remove-reverse-stackable-values

remove-unused-constant

remove/deprecations-3-3

remove/http-digest-dsl

remove_deprecated_param_builder_extensions

remove_guard

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remove_non_supported_jsonapi

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resolve_performace_issue_with_given

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route-default-hash-collision

route-default-reads-description-key

route-default-response-alias

route-param-bare-requirements

route-scope-accessors

route_attributes_kwargs

route_match_params_via_pattern

router-compile-registered-methods

rubocop-mutable-constant-recursive

ruby3_handling_argument_delegation

ruby_3_1_shorthand_kwargs

ruby_optimizations

ruby_style_send

security/mounted-rack-auth-and-html-escape

skip_instrumentation_no_validators

skip_run_filters_on_empty

small_refactor_versioner_middleware

spec-only-rack-class

standardize-error-messages

support-open-ranges-values

test-adversarial-nesting-depth

test/grape-swagger-integration

try_pattern_instead_of_respond_to

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untangle_route_params

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v0.19.2

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valid_encoding_before_scrubing

validators_bad_encoding

Committed 10 Sep 2026 07:18PM UTC coverage: 99.184%. Remained the same

Build # 34519664011

Build Type

github

Committed by

Commit Message

Skip the renamed-params lookup in `declared` when nothing is renamed

`build_memo_key` looks every declared param up in the route's renamed
params, keyed by the param's whole path. That key is built fresh each
time, two Arrays and a String per declared param, on every `declared`
call. Only an API using `as:` has anything in that table; everywhere else
it is empty and every lookup misses.

The lookup is now skipped when the table is empty: `declared` on five
params went from 4.81 to 4.29 µs (6.16 to 5.59 µs with missing keys
included).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Pull Request Pull Request #2926: Skip the renamed-params lookup in `declared` when nothing is renamed

Coverage Stats

1308 of 1352 branches covered (96.75%)

Branch coverage included in aggregate %.

1 of 1 new or added line in 1 file covered. (100.0%)

4039 of 4039 relevant lines covered (100.0%)

27236.76 hits per line

Relevant lines Covered

4039 RELEVANT LINES 4039 COVERED LINES

27236.76 HITS PER LINE

Source Files on perf/declared-skip-empty-renames

Recent builds

Builds	Branch	Commit	Type	Ran	Committer	Via	Coverage
34519664011	perf/declared-skip-empty-renames	Skip the renamed-params lookup in `declared` when nothing is renamed `build_memo_key` looks every declared param up in the route's renamed params, keyed by the param's whole path. That key is built fresh each time, two Arrays and a String per dec...	Pull #2926	10 Sep 2026 07:31PM UTC	ericproulx	github	99.18
34519660498	perf/declared-skip-empty-renames	Skip the renamed-params lookup in `declared` when nothing is renamed `build_memo_key` looks every declared param up in the route's renamed params, keyed by the param's whole path. That key is built fresh each time, two Arrays and a String per dec...	push	10 Sep 2026 07:28PM UTC	ericproulx	github	99.18

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