diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 0dde0a1..f4b9587 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -41,3 +41,6 @@ jobs:
 
       - name: Run phpunit tests
         run: vendor/bin/phpunit --testsuite tests --colors=always --testdox
+
+      - name: Check that benchmarks run
+        run: vendor/bin/phpbench run --revs=1 --iterations=1 --stop-on-error --progress=none
diff --git a/.gitignore b/.gitignore
index 24265e8..7ee333d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .idea
 vendor
 .phpunit.result.cache
+.phpbench
diff --git a/README.md b/README.md
index 34b1ee5..7f017e4 100644
--- a/README.md
+++ b/README.md
@@ -113,3 +113,23 @@ $modification->setReplacement('bar');
 $printer->addModification($modification);
 $printer->print();
 ```
+
+## Benchmarks
+
+The [benchmarks](test/benchmarks) measure parsing and analysing of generated logs with [phpbench](https://github.com/phpbench/phpbench).
+They are meant to compare a change against `master` locally, CI only checks that they still run.
+
+```
+composer bench
+```
+
+To compare a branch against `master`, store a baseline on `master` and reference it on the branch:
+
+```
+git switch master
+composer bench -- --tag=master
+git switch my-branch
+composer bench -- --ref=master
+```
+
+Disable Xdebug (`XDEBUG_MODE=off`) and keep the same PHP and opcache settings for both runs, otherwise the numbers are not comparable.
diff --git a/composer.json b/composer.json
index 05f5fc3..ac10cd1 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,8 @@
     "php": ">=8.4"
   },
   "require-dev": {
-    "phpunit/phpunit": "^12"
+    "phpunit/phpunit": "^12",
+    "phpbench/phpbench": "^1.7"
   },
   "autoload": {
     "psr-4": {
@@ -23,10 +24,15 @@
   "autoload-dev": {
     "psr-4": {
       "Aternos\\Codex\\Test\\Src\\": "test/src/",
-      "Aternos\\Codex\\Test\\Tests\\": "test/tests/"
-    }
+      "Aternos\\Codex\\Test\\Tests\\": "test/tests/",
+      "Aternos\\Codex\\Test\\Benchmarks\\": "test/benchmarks/"
+    },
+    "classmap": [
+      "test/benchmarks/Insight/KeywordProblems.php"
+    ]
   },
   "scripts": {
-    "test": "phpunit test/tests"
+    "test": "phpunit test/tests",
+    "bench": "phpbench run --report=default"
   }
 }
diff --git a/composer.lock b/composer.lock
index 508eee4..b29f444 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,9 +4,163 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "ed32720a5cfbfa3bbba1d5c565bb2966",
+    "content-hash": "88543d4194bba5980e9ede33c725f7ba",
     "packages": [],
     "packages-dev": [
+        {
+            "name": "doctrine/annotations",
+            "version": "2.0.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/doctrine/annotations.git",
+                "reference": "901c2ee5d26eb64ff43c47976e114bf00843acf7"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/doctrine/annotations/zipball/901c2ee5d26eb64ff43c47976e114bf00843acf7",
+                "reference": "901c2ee5d26eb64ff43c47976e114bf00843acf7",
+                "shasum": ""
+            },
+            "require": {
+                "doctrine/lexer": "^2 || ^3",
+                "ext-tokenizer": "*",
+                "php": "^7.2 || ^8.0",
+                "psr/cache": "^1 || ^2 || ^3"
+            },
+            "require-dev": {
+                "doctrine/cache": "^2.0",
+                "doctrine/coding-standard": "^10",
+                "phpstan/phpstan": "^1.10.28",
+                "phpunit/phpunit": "^7.5 || ^8.5 || ^9.5",
+                "symfony/cache": "^5.4 || ^6.4 || ^7",
+                "vimeo/psalm": "^4.30 || ^5.14"
+            },
+            "suggest": {
+                "php": "PHP 8.0 or higher comes with attributes, a native replacement for annotations"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Doctrine\\Common\\Annotations\\": "lib/Doctrine/Common/Annotations"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Guilherme Blanco",
+                    "email": "guilhermeblanco@gmail.com"
+                },
+                {
+                    "name": "Roman Borschel",
+                    "email": "roman@code-factory.org"
+                },
+                {
+                    "name": "Benjamin Eberlei",
+                    "email": "kontakt@beberlei.de"
+                },
+                {
+                    "name": "Jonathan Wage",
+                    "email": "jonwage@gmail.com"
+                },
+                {
+                    "name": "Johannes Schmitt",
+                    "email": "schmittjoh@gmail.com"
+                }
+            ],
+            "description": "Docblock Annotations Parser",
+            "homepage": "https://www.doctrine-project.org/projects/annotations.html",
+            "keywords": [
+                "annotations",
+                "docblock",
+                "parser"
+            ],
+            "support": {
+                "issues": "https://github.com/doctrine/annotations/issues",
+                "source": "https://github.com/doctrine/annotations/tree/2.0.2"
+            },
+            "abandoned": true,
+            "time": "2024-09-05T10:17:24+00:00",
+            "published-time": "2024-09-05T14:54:52+00:00"
+        },
+        {
+            "name": "doctrine/lexer",
+            "version": "3.0.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/doctrine/lexer.git",
+                "reference": "71d305eaa6480d3d3460c7d053d1da7749fa9cca"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/doctrine/lexer/zipball/71d305eaa6480d3d3460c7d053d1da7749fa9cca",
+                "reference": "71d305eaa6480d3d3460c7d053d1da7749fa9cca",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^8.1"
+            },
+            "require-dev": {
+                "doctrine/coding-standard": "^14",
+                "phpstan/phpstan": "^2",
+                "phpunit/phpunit": "^10.5.58 || ^12.5.4"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Doctrine\\Common\\Lexer\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Guilherme Blanco",
+                    "email": "guilhermeblanco@gmail.com"
+                },
+                {
+                    "name": "Roman Borschel",
+                    "email": "roman@code-factory.org"
+                },
+                {
+                    "name": "Johannes Schmitt",
+                    "email": "schmittjoh@gmail.com"
+                }
+            ],
+            "description": "PHP Doctrine Lexer parser library that can be used in Top-Down, Recursive Descent Parsers.",
+            "homepage": "https://www.doctrine-project.org/projects/lexer.html",
+            "keywords": [
+                "annotations",
+                "docblock",
+                "lexer",
+                "parser",
+                "php"
+            ],
+            "support": {
+                "issues": "https://github.com/doctrine/lexer/issues",
+                "source": "https://github.com/doctrine/lexer/tree/3.0.3"
+            },
+            "funding": [
+                {
+                    "url": "https://www.doctrine-project.org/sponsorship.html",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://www.patreon.com/phpdoctrine",
+                    "type": "patreon"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/doctrine%2Flexer",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2026-10-01T06:59:29+00:00",
+            "published-time": "2026-10-01T07:01:28+00:00"
+        },
         {
             "name": "myclabs/deep-copy",
             "version": "1.13.4",
@@ -243,6 +397,158 @@
             },
             "time": "2022-02-21T01:04:05+00:00"
         },
+        {
+            "name": "phpbench/container",
+            "version": "2.2.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpbench/container.git",
+                "reference": "0c7b2d36c1ea53fe27302fb8873ded7172047196"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpbench/container/zipball/0c7b2d36c1ea53fe27302fb8873ded7172047196",
+                "reference": "0c7b2d36c1ea53fe27302fb8873ded7172047196",
+                "shasum": ""
+            },
+            "require": {
+                "psr/container": "^1.0|^2.0",
+                "symfony/options-resolver": "^4.2 || ^5.0 || ^6.0 || ^7.0 || ^8.0"
+            },
+            "require-dev": {
+                "php-cs-fixer/shim": "^3.89",
+                "phpstan/phpstan": "^0.12.52",
+                "phpunit/phpunit": "^8"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "PhpBench\\DependencyInjection\\": "lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Daniel Leech",
+                    "email": "daniel@dantleech.com"
+                }
+            ],
+            "description": "Simple, configurable, service container.",
+            "support": {
+                "issues": "https://github.com/phpbench/container/issues",
+                "source": "https://github.com/phpbench/container/tree/2.2.3"
+            },
+            "time": "2025-11-06T09:05:13+00:00",
+            "published-time": "2025-11-06T09:06:31+00:00"
+        },
+        {
+            "name": "phpbench/phpbench",
+            "version": "1.7.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpbench/phpbench.git",
+                "reference": "3d13c0d5dcf8730a67b70fa7fb03b4556b5cc0fe"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpbench/phpbench/zipball/3d13c0d5dcf8730a67b70fa7fb03b4556b5cc0fe",
+                "reference": "3d13c0d5dcf8730a67b70fa7fb03b4556b5cc0fe",
+                "shasum": ""
+            },
+            "require": {
+                "doctrine/annotations": "^2.0",
+                "ext-dom": "*",
+                "ext-json": "*",
+                "ext-pcre": "*",
+                "ext-reflection": "*",
+                "ext-spl": "*",
+                "ext-tokenizer": "*",
+                "php": "^8.2",
+                "phpbench/container": "^2.2",
+                "psr/log": "^1.1 || ^2.0 || ^3.0",
+                "seld/jsonlint": "^1.1",
+                "symfony/console": "^6.1 || ^7.0 || ^8.0",
+                "symfony/filesystem": "^6.1 || ^7.0 || ^8.0",
+                "symfony/finder": "^6.1 || ^7.0 || ^8.0",
+                "symfony/options-resolver": "^6.1 || ^7.0 || ^8.0",
+                "symfony/process": "^6.1 || ^7.0 || ^8.0",
+                "webmozart/glob": "^4.6"
+            },
+            "require-dev": {
+                "dantleech/invoke": "^2.0",
+                "ergebnis/composer-normalize": "^2.39",
+                "jangregor/phpstan-prophecy": "^2.0",
+                "php-cs-fixer/shim": "^3.9",
+                "phpspec/prophecy": "^1.22",
+                "phpstan/extension-installer": "^1.1",
+                "phpstan/phpstan": "^2.0",
+                "phpstan/phpstan-phpunit": "^2.0",
+                "phpunit/phpunit": "^11.5",
+                "rector/rector": "^2.2",
+                "sebastian/exporter": "^6.3.2",
+                "symfony/error-handler": "^6.1 || ^7.0 || ^8.0",
+                "symfony/var-dumper": "^6.1 || ^7.0 || ^8.0"
+            },
+            "suggest": {
+                "ext-xdebug": "For Xdebug profiling extension."
+            },
+            "bin": [
+                "bin/phpbench"
+            ],
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.2-dev"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "lib/Report/Func/functions.php"
+                ],
+                "psr-4": {
+                    "PhpBench\\": "lib/",
+                    "PhpBench\\Extensions\\XDebug\\": "extensions/xdebug/lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Daniel Leech",
+                    "email": "daniel@dantleech.com"
+                }
+            ],
+            "description": "PHP Benchmarking Framework",
+            "keywords": [
+                "benchmarking",
+                "optimization",
+                "performance",
+                "profiling",
+                "testing"
+            ],
+            "support": {
+                "issues": "https://github.com/phpbench/phpbench/issues",
+                "source": "https://github.com/phpbench/phpbench/tree/1.7.0"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/dantleech",
+                    "type": "github"
+                }
+            ],
+            "time": "2026-06-08T19:09:20+00:00",
+            "published-time": "2026-06-08T19:11:37+00:00"
+        },
         {
             "name": "phpunit/php-code-coverage",
             "version": "12.5.2",
@@ -683,135 +989,290 @@
             "time": "2026-01-16T16:28:10+00:00"
         },
         {
-            "name": "sebastian/cli-parser",
-            "version": "4.2.0",
+            "name": "psr/cache",
+            "version": "3.0.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/sebastianbergmann/cli-parser.git",
-                "reference": "90f41072d220e5c40df6e8635f5dafba2d9d4d04"
+                "url": "https://github.com/php-fig/cache.git",
+                "reference": "aa5030cfa5405eccfdcb1083ce040c2cb8d253bf"
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-                "reference": "90f41072d220e5c40df6e8635f5dafba2d9d4d04",
+                "url": "https://api.github.com/repos/php-fig/cache/zipball/aa5030cfa5405eccfdcb1083ce040c2cb8d253bf",
+                "reference": "aa5030cfa5405eccfdcb1083ce040c2cb8d253bf",
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             },
             "require": {
-                "php": ">=8.3"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^12.0"
+                "php": ">=8.0.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-main": "4.2-dev"
+                    "dev-master": "1.0.x-dev"
                 }
             },
             "autoload": {
-                "classmap": [
-                    "src/"
-                ]
+                "psr-4": {
+                    "Psr\\Cache\\": "src/"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "BSD-3-Clause"
+                "MIT"
             ],
             "authors": [
                 {
-                    "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de",
-                    "role": "lead"
+                    "name": "PHP-FIG",
+                    "homepage": "https://www.php-fig.org/"
                 }
             ],
-            "description": "Library for parsing CLI options",
-            "homepage": "https://github.com/sebastianbergmann/cli-parser",
+            "description": "Common interface for caching libraries",
+            "keywords": [
+                "cache",
+                "psr",
+                "psr-6"
+            ],
             "support": {
-                "issues": "https://github.com/sebastianbergmann/cli-parser/issues",
-                "security": "https://github.com/sebastianbergmann/cli-parser/security/policy",
-                "source": "https://github.com/sebastianbergmann/cli-parser/tree/4.2.0"
+                "source": "https://github.com/php-fig/cache/tree/3.0.0"
             },
-            "funding": [
-                {
-                    "url": "https://github.com/sebastianbergmann",
-                    "type": "github"
-                },
-                {
-                    "url": "https://liberapay.com/sebastianbergmann",
-                    "type": "liberapay"
-                },
-                {
-                    "url": "https://thanks.dev/u/gh/sebastianbergmann",
-                    "type": "thanks_dev"
-                },
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-                    "type": "tidelift"
-                }
-            ],
-            "time": "2025-09-14T09:36:45+00:00"
+            "time": "2021-02-03T23:26:27+00:00",
+            "published-time": "2021-02-03T23:27:34+00:00"
         },
         {
-            "name": "sebastian/comparator",
-            "version": "7.1.3",
+            "name": "psr/container",
+            "version": "2.0.2",
             "source": {
                 "type": "git",
-                "url": "https://github.com/sebastianbergmann/comparator.git",
-                "reference": "dc904b4bb3ab070865fa4068cd84f3da8b945148"
+                "url": "https://github.com/php-fig/container.git",
+                "reference": "c71ecc56dfe541dbd90c5360474fbc405f8d5963"
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             "dist": {
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-                "reference": "dc904b4bb3ab070865fa4068cd84f3da8b945148",
+                "url": "https://api.github.com/repos/php-fig/container/zipball/c71ecc56dfe541dbd90c5360474fbc405f8d5963",
+                "reference": "c71ecc56dfe541dbd90c5360474fbc405f8d5963",
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-                "ext-mbstring": "*",
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-            "require-dev": {
-                "phpunit/phpunit": "^12.2"
-            },
-            "suggest": {
-                "ext-bcmath": "For comparing BcMath\\Number objects"
+                "php": ">=7.4.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-main": "7.1-dev"
+                    "dev-master": "2.0.x-dev"
                 }
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             "autoload": {
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-                    "src/"
-                ]
+                "psr-4": {
+                    "Psr\\Container\\": "src/"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "BSD-3-Clause"
+                "MIT"
             ],
             "authors": [
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-                    "email": "sebastian@phpunit.de"
-                },
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-                    "name": "Jeff Welch",
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-                    "email": "github@wallbash.com"
-                },
-                {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@2bepublished.at"
+                    "name": "PHP-FIG",
+                    "homepage": "https://www.php-fig.org/"
                 }
             ],
-            "description": "Provides the functionality to compare PHP values for equality",
+            "description": "Common Container Interface (PHP FIG PSR-11)",
+            "homepage": "https://github.com/php-fig/container",
+            "keywords": [
+                "PSR-11",
+                "container",
+                "container-interface",
+                "container-interop",
+                "psr"
+            ],
+            "support": {
+                "issues": "https://github.com/php-fig/container/issues",
+                "source": "https://github.com/php-fig/container/tree/2.0.2"
+            },
+            "time": "2021-11-05T16:47:00+00:00",
+            "published-time": "2021-11-05T16:53:27+00:00"
+        },
+        {
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+            "version": "3.0.2",
+            "source": {
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+            "dist": {
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+                "url": "https://api.github.com/repos/php-fig/log/zipball/f16e1d5863e37f8d8c2a01719f5b34baa2b714d3",
+                "reference": "f16e1d5863e37f8d8c2a01719f5b34baa2b714d3",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.0.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\Log\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "https://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interface for logging libraries",
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+                "url": "https://api.github.com/repos/webmozarts/glob/zipball/8a2842112d6916e61e0e15e316465b611f3abc17",
+                "reference": "8a2842112d6916e61e0e15e316465b611f3abc17",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.3 || ^8.0.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^9.5",
+                "symfony/filesystem": "^5.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "4.1-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Webmozart\\Glob\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Bernhard Schussek",
+                    "email": "bschussek@gmail.com"
+                }
+            ],
+            "description": "A PHP implementation of Ant's glob.",
+            "support": {
+                "issues": "https://github.com/webmozarts/glob/issues",
+                "source": "https://github.com/webmozarts/glob/tree/4.7.0"
+            },
+            "time": "2024-03-07T20:33:40+00:00",
+            "published-time": "2024-03-07T20:34:42+00:00"
         }
     ],
     "aliases": [],
@@ -1688,8 +3315,8 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=8.3"
+        "php": ">=8.4"
     },
     "platform-dev": {},
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.11.0"
 }
diff --git a/phpbench.json b/phpbench.json
new file mode 100644
index 0000000..ed5df3e
--- /dev/null
+++ b/phpbench.json
@@ -0,0 +1,13 @@
+{
+    "$schema": "./vendor/phpbench/phpbench/phpbench.schema.json",
+    "runner.bootstrap": "vendor/autoload.php",
+    "runner.path": "test/benchmarks",
+    "runner.file_pattern": "*Bench.php",
+    "runner.retry_threshold": 5,
+    "report.generators": {
+        "default": {
+            "extends": "aggregate",
+            "cols": ["benchmark", "subject", "set", "revs", "its", "mem_peak", "mode", "rstdev"]
+        }
+    }
+}
diff --git a/test/benchmarks/AnalyseBench.php b/test/benchmarks/AnalyseBench.php
new file mode 100644
index 0000000..1ec55f8
--- /dev/null
+++ b/test/benchmarks/AnalyseBench.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace Aternos\Codex\Test\Benchmarks;
+
+use Aternos\Codex\Analyser\PatternAnalyser;
+use Aternos\Codex\Log\File\StringLogFile;
+use Aternos\Codex\Test\Benchmarks\Insight\KeywordProblem;
+use Aternos\Codex\Test\Src\Log\TestPatternLog;
+use Generator;
+use PhpBench\Attributes\BeforeMethods;
+use PhpBench\Attributes\Iterations;
+use PhpBench\Attributes\ParamProviders;
+use PhpBench\Attributes\Revs;
+use PhpBench\Attributes\Warmup;
+
+#[BeforeMethods("setUp")]
+#[Iterations(5)]
+#[Warmup(1)]
+class AnalyseBench
+{
+    protected TestPatternLog $log;
+    protected PatternAnalyser $analyser;
+
+    /**
+     * Parse the log and set up the analyser outside of the measured time
+     *
+     * @param array{entries: int, multiLineShare: float, insightClasses: int} $params
+     */
+    public function setUp(array $params): void
+    {
+        $content = new LogGenerator()->generate($params["entries"], $params["multiLineShare"], keywordCount: $params["insightClasses"]);
+        $this->log = new TestPatternLog()->setLogFile(new StringLogFile($content));
+        $this->log->parse();
+
+        $this->analyser = new PatternAnalyser();
+        for ($index = 1; $index <= $params["insightClasses"]; $index++) {
+            /** @var class-string<KeywordProblem> $insightClass */
+            $insightClass = sprintf("%s%02d", KeywordProblem::class, $index);
+            $this->analyser->addPossibleInsightClass($insightClass);
+        }
+        $this->analyser->setLog($this->log);
+    }
+
+    public function provideLogs(): Generator
+    {
+        yield "1k entries, 2 insights" => ["entries" => 1_000, "multiLineShare" => 0.1, "insightClasses" => 2];
+        yield "1k entries, 20 insights" => ["entries" => 1_000, "multiLineShare" => 0.1, "insightClasses" => 20];
+        yield "10k entries, 20 insights" => ["entries" => 10_000, "multiLineShare" => 0.1, "insightClasses" => 20];
+        yield "10k entries, 20 insights, many stack traces" => ["entries" => 10_000, "multiLineShare" => 0.5, "insightClasses" => 20];
+    }
+
+    /**
+     * Analyse the parsed log with the PatternAnalyser directly
+     *
+     * AnalysableLog::analyse() caches its result, so it would only measure the first revolution.
+     */
+    #[ParamProviders("provideLogs")]
+    #[Revs(3)]
+    public function benchAnalyse(): void
+    {
+        $this->analyser->analyse();
+    }
+}
diff --git a/test/benchmarks/Insight/KeywordProblem.php b/test/benchmarks/Insight/KeywordProblem.php
new file mode 100644
index 0000000..a58beb8
--- /dev/null
+++ b/test/benchmarks/Insight/KeywordProblem.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace Aternos\Codex\Test\Benchmarks\Insight;
+
+use Aternos\Codex\Analysis\InsightInterface;
+use Aternos\Codex\Analysis\PatternInsightInterface;
+use Aternos\Codex\Analysis\Problem;
+
+/**
+ * A problem that matches lines like "Keyword07 failed with code 42"
+ *
+ * Real users of codex register dozens of insight classes, each with its own patterns.
+ * The subclasses in KeywordProblems.php only differ in their keyword, so the benchmarks
+ * can analyse a log with any number of distinct insight classes.
+ */
+abstract class KeywordProblem extends Problem implements PatternInsightInterface
+{
+    protected ?string $code = null;
+
+    /**
+     * @return string The keyword this problem looks for, e.g. "Keyword07"
+     */
+    abstract public static function getKeyword(): string;
+
+    /**
+     * @inheritDoc
+     */
+    public static function getPatterns(): array
+    {
+        // Built from fragments on every call like many real insight classes do,
+        // e.g. "/Keyword07 failed with code (?<code>\d+)/" matches "Keyword07 failed with code 42"
+        return ['/' . preg_quote(static::getKeyword(), '/') . ' failed with code (?<code>\d+)/'];
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function setMatches(array $matches, mixed $patternKey): void
+    {
+        $this->code = $matches['code'];
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getMessage(): string
+    {
+        return static::getKeyword() . " failed with code " . $this->code;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function isEqual(InsightInterface $insight): bool
+    {
+        return $insight instanceof static && $this->code === $insight->code;
+    }
+}
diff --git a/test/benchmarks/Insight/KeywordProblems.php b/test/benchmarks/Insight/KeywordProblems.php
new file mode 100644
index 0000000..ebca1b6
--- /dev/null
+++ b/test/benchmarks/Insight/KeywordProblems.php
@@ -0,0 +1,166 @@
+<?php
+
+namespace Aternos\Codex\Test\Benchmarks\Insight;
+
+// Distinct insight classes for the benchmarks, see KeywordProblem.
+// They are loaded through the classmap in composer.json because they share one file.
+
+class KeywordProblem01 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword01";
+    }
+}
+
+class KeywordProblem02 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword02";
+    }
+}
+
+class KeywordProblem03 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword03";
+    }
+}
+
+class KeywordProblem04 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword04";
+    }
+}
+
+class KeywordProblem05 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword05";
+    }
+}
+
+class KeywordProblem06 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword06";
+    }
+}
+
+class KeywordProblem07 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword07";
+    }
+}
+
+class KeywordProblem08 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword08";
+    }
+}
+
+class KeywordProblem09 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword09";
+    }
+}
+
+class KeywordProblem10 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword10";
+    }
+}
+
+class KeywordProblem11 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword11";
+    }
+}
+
+class KeywordProblem12 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword12";
+    }
+}
+
+class KeywordProblem13 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword13";
+    }
+}
+
+class KeywordProblem14 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword14";
+    }
+}
+
+class KeywordProblem15 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword15";
+    }
+}
+
+class KeywordProblem16 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword16";
+    }
+}
+
+class KeywordProblem17 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword17";
+    }
+}
+
+class KeywordProblem18 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword18";
+    }
+}
+
+class KeywordProblem19 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword19";
+    }
+}
+
+class KeywordProblem20 extends KeywordProblem
+{
+    public static function getKeyword(): string
+    {
+        return "Keyword20";
+    }
+}
diff --git a/test/benchmarks/LogGenerator.php b/test/benchmarks/LogGenerator.php
new file mode 100644
index 0000000..58c9d38
--- /dev/null
+++ b/test/benchmarks/LogGenerator.php
@@ -0,0 +1,72 @@
+<?php
+
+namespace Aternos\Codex\Test\Benchmarks;
+
+use Random\Engine\Mt19937;
+use Random\Randomizer;
+
+/**
+ * Generates large logs in the format of test/data/problem.log for the benchmarks
+ *
+ * The output only depends on the arguments, so every run and every branch measures the same log.
+ */
+class LogGenerator
+{
+    protected const int SEED = 1337;
+    protected const int STACK_TRACE_LINES = 10;
+    protected const array LEVELS = ["INFO", "INFO", "INFO", "WARN", "ERROR"];
+
+    /**
+     * @param int $entryCount Number of entries, every entry starts with a "[time] [Thread/LEVEL]" prefix
+     * @param float $multiLineShare Share of entries followed by a stack trace, between 0 and 1
+     * @param float $matchShare Share of entries that match one of the KeywordProblem patterns, between 0 and 1
+     * @param int $keywordCount Number of different keywords used in matching entries, see KeywordProblems.php
+     * @return string
+     */
+    public function generate(int $entryCount, float $multiLineShare = 0.1, float $matchShare = 0.05, int $keywordCount = 20): string
+    {
+        $randomizer = new Randomizer(new Mt19937(static::SEED));
+        $lines = [];
+
+        for ($entryIndex = 0; $entryIndex < $entryCount; $entryIndex++) {
+            $time = gmdate("d.m.Y H:i:s", $entryIndex);
+            $level = static::LEVELS[$randomizer->getInt(0, count(static::LEVELS) - 1)];
+            $lines[] = "[" . $time . "] [Server/" . $level . "] " . $this->generateMessage($randomizer, $matchShare, $keywordCount);
+
+            if ($randomizer->getFloat(0, 1) < $multiLineShare) {
+                array_push($lines, ...$this->generateStackTrace($randomizer));
+            }
+        }
+
+        return implode("\n", $lines);
+    }
+
+    /**
+     * @param Randomizer $randomizer
+     * @param float $matchShare
+     * @param int $keywordCount
+     * @return string
+     */
+    protected function generateMessage(Randomizer $randomizer, float $matchShare, int $keywordCount): string
+    {
+        if ($randomizer->getFloat(0, 1) < $matchShare) {
+            $keyword = sprintf("Keyword%02d", $randomizer->getInt(1, $keywordCount));
+            return $keyword . " failed with code " . $randomizer->getInt(1, 999);
+        }
+
+        return "Processed request " . $randomizer->getInt(1, 1_000_000) . " for client " . bin2hex($randomizer->getBytes(4));
+    }
+
+    /**
+     * @param Randomizer $randomizer
+     * @return string[]
+     */
+    protected function generateStackTrace(Randomizer $randomizer): array
+    {
+        $lines = ["java.lang.IllegalStateException: Unexpected state " . $randomizer->getInt(1, 100)];
+        for ($frame = 0; $frame < static::STACK_TRACE_LINES; $frame++) {
+            $lines[] = "\tat net.example.server.Worker" . $frame . ".run(Worker" . $frame . ".java:" . $randomizer->getInt(1, 500) . ")";
+        }
+        return $lines;
+    }
+}
diff --git a/test/benchmarks/ParseBench.php b/test/benchmarks/ParseBench.php
new file mode 100644
index 0000000..9004a9f
--- /dev/null
+++ b/test/benchmarks/ParseBench.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace Aternos\Codex\Test\Benchmarks;
+
+use Aternos\Codex\Log\File\StringLogFile;
+use Aternos\Codex\Test\Src\Log\TestPatternLog;
+use Generator;
+use PhpBench\Attributes\BeforeMethods;
+use PhpBench\Attributes\Iterations;
+use PhpBench\Attributes\ParamProviders;
+use PhpBench\Attributes\Revs;
+use PhpBench\Attributes\Warmup;
+
+#[BeforeMethods("setUp")]
+#[Iterations(5)]
+#[Warmup(1)]
+class ParseBench
+{
+    protected string $content;
+
+    /**
+     * @param array{entries: int, multiLineShare: float} $params
+     */
+    public function setUp(array $params): void
+    {
+        $this->content = new LogGenerator()->generate($params["entries"], $params["multiLineShare"]);
+    }
+
+    public function provideLogs(): Generator
+    {
+        yield "1k entries" => ["entries" => 1_000, "multiLineShare" => 0.1];
+        yield "10k entries" => ["entries" => 10_000, "multiLineShare" => 0.1];
+        yield "10k entries, many stack traces" => ["entries" => 10_000, "multiLineShare" => 0.5];
+    }
+
+    /**
+     * Parse the log with the PatternParser of TestPatternLog
+     *
+     * A new log is created for every revolution because parsing adds entries to the log.
+     */
+    #[ParamProviders("provideLogs")]
+    #[Revs(3)]
+    public function benchParse(): void
+    {
+        new TestPatternLog()
+            ->setLogFile(new StringLogFile($this->content))
+            ->parse();
+    }
+}