# samjuk/m2-module-cache-debounce > Debounce FPC cache purges to a set schedule `composer require samjuk/m2-module-cache-debounce` Canonical URL: https://packagento.com/samjuk/m2-module-cache-debounce ## At a glance - **Vendor**: samjuk (https://packagento.com/samjuk.md) - **Latest version**: v0.0.3 — released 2025-02-19 - **Pricing**: Free - **Package type**: Magento 2 module - **Status**: active, accepting new buyers ## Installation Packagento is licence-gated, so even free packages need a licence on a project before Composer can resolve them. 1. **Sign in or create an account** at https://packagento.com/customer/account/. 2. **Add the package to your account.** Open https://packagento.com/samjuk/m2-module-cache-debounce and complete the free checkout. A licence is minted automatically. 3. **Create or pick a project, then activate the licence on it.** - Projects represent the Magento installs you deploy to. Manage them at https://packagento.com/projects/. - Activate the new licence on the project you'll deploy this package to. Activation is what generates the Composer credentials scoped to that project. 4. **Add the project credentials to your Magento codebase.** Grab the project's public + private key from https://packagento.com/projects/ (open the project, then its Credentials tab), and add them to `auth.json`: ```json { "http-basic": { "packagento.com": { "username": "ppk_live_...", "password": "psk_live_..." } } } ``` Add the Packagento Composer repository to `composer.json`: ```json { "repositories": [ { "type": "composer", "url": "https://packagento.com" } ] } ``` 5. **Install and apply.** ```bash composer require samjuk/m2-module-cache-debounce:* bin/magento setup:upgrade bin/magento setup:di:compile bin/magento cache:flush ``` ## What it does Debounce FPC cache purges to a set schedule ## README [![Supported Magento Versions](https://img.shields.io/badge/magento-2.4.3%E2%80%932.4.7-orange.svg?logo=magento)](https://github.com/SamJUK/m2-module-cache-debounce/actions/workflows/ci.yml) [![CI Workflow Status](https://github.com/samjuk/m2-module-cache-debounce/actions/workflows/ci.yml/badge.svg)](https://github.com/SamJUK/m2-module-cache-debounce/actions/workflows/ci.yml) [![GitHub Release](https://img.shields.io/github/v/release/SamJUK/m2-module-cache-debounce?label=Latest%20Release&logo=github)](https://github.com/SamJUK/m2-module-cache-debounce/releases) This module debounces/defers/delays FPC cache purge requests to occur on a set schedule. Allowing you to make a trade off between cache accuracy and backend load. Particularly useful for a ERP solutions that like to issue significant stock updates, in turn flushing cache regularly especially for common parent categories. If you require a more aggressive solution, such as disabling Cache Flushes entirely then [Hypershop_SpikePerformance](https://github.com/hypershopbv/Hypershop_SpikePerformance) might be a better solution for you. ### Proof Of Concept The module was tested on a fresh Luma store with Sample Data, running on CPX31 VPS (4vCPU, 8GB Memory). Traffic was generated via a golang based sitemap crawler running back to back. A stock management integration was mocked by, setting a random QTY on a random Sku every 1 second via the PUT StockItems route. ![Before and After Metrics for a POC store](./.github/poc.png) ### Installation ```sh composer config repositories.samjuk-m2-module-cache-debounce vcs git@github.com:SamJUK/m2-module-cache-debounce.git composer require samjuk/m2-module-cache-debounce:@dev php bin/magento setup:upgrade && php bin/magento cache:flush ``` ### Configuration Configuration can be handled via System configuration, from within the Cache Debounce menu of the SamJUK Tab. Or can be set via the CLI with the command ```sh php bin/magento config:set ``` Option | Config Path | Default | Description --- | --- | --- | --- Enabled | `samjuk_cache_debounce/general/enabled` | `0` | Feature flag to toggle functionality of the module Flush Schedule | `samjuk_cache_debounce/cron/flush_schedule` | `*/5 0 0 0 0` | Cron schedule to run the scheduled flush ### Will this help my store? The performance improvement comes from improving cache performance by reducing the amount of cache purge requests in turn reducing system load. To check how many cache invalidations your system is issuing, you can enable debug logging, which will add some `cache invalidate` entries to your `var/log/debug.log` file. ```sh php bin/magento setup:config:set --enable-debug-logging=true && php bin/magento cache:flush ``` If you do not want to enabling debug logging in production for some reason, maybe log ingest limitations. You can patch the invalidation logger to change the log level to `info`, so they appear within the `system.log` file. ```diff --- vendor/magento/framework/Cache/InvalidateLogger.php +++ vendor/magento/framework/Cache/InvalidateLogger.php @@ -43,7 +43,7 @@ */ public function execute($invalidateInfo) { - $this->logger->debug('cache_invalidate: ', $this->makeParams($invalidateInfo)); + $this->logger->info('cache_invalidate: ', $this->makeParams($invalidateInfo)); } /** ``` ## Recent Versions | Version | Released | |---|---| | v0.0.3 | 2025-02-19 | | v0.0.2 | 2024-11-07 | | v0.0.1 | 2024-11-06 | ## Dependencies ### Require | Package | Constraint | |---|---| | php | ^7.0\|^8.0 | ### Require (dev) | Package | Constraint | |---|---| | phpstan/phpstan | ^1.12 | | phpunit/phpunit | ^10.5 | ## Quality Latest release (v0.0.3) passes the Packagento QA pipeline. Verdicts below are per-cell (Magento line × PHP version) for the matrixed tools, and run-once for the static / security tiers. ### Compatibility Each Magento line is installed on its supported PHP versions, then the module is built (DI compile + static-content deploy). Cells show passed / failed / untested; staircase gaps render as `–`. | Magento | PHP 8.2 | PHP 8.3 | PHP 8.4 | PHP 8.5 | |---|---|---|---|---| | 2.4.7 | Pass | Pass | – | – | | 2.4.8 | – | Pass | Pass | – | | 2.4.9 | – | – | Pass | Pass | ### Code Quality Advisory checks against the module's source. Never affect the Compatibility verdict — a phpcs finding can't make a module incompatible. #### Static Analysis Coding standards (phpcs), mess detection (phpmd), copy-pasted code (cpd), PHP cross-version compatibility, composer.json validity. Each runs once for the whole module. | Tool | Status | Findings | Summary | |---|---|---|---| | PHPCS | Warning | 10 | 10 warnings (ruleset: Magento2) | | PHPMD | Warning | 19 | 19 rule violations (UnusedPrivateField:19) | | Cpd | Pass | 0 | | | Composer validate | Pass | 0 | | #### PHPStan Type-checks the module against a real Magento install. Re-runs per Magento + PHP version because resolvable symbols differ between releases. | Magento | PHP 8.2 | PHP 8.3 | PHP 8.4 | PHP 8.5 | |---|---|---|---|---| | 2.4.7 | Pass | Pass | – | – | | 2.4.8 | – | Pass | Pass | – | | 2.4.9 | – | – | Pass | Pass | ### Tests Unit and integration suites run per Magento + PHP cell. Test failures speak to the module's behaviour, not its compatibility with a line, so they're reported here separately. #### Unit Tests | Magento | PHP 8.2 | PHP 8.3 | PHP 8.4 | PHP 8.5 | |---|---|---|---|---| | 2.4.7 | N/A | N/A | – | – | | 2.4.8 | – | N/A | N/A | – | | 2.4.9 | – | – | N/A | N/A | ### Security Dependency-advisory audit (composer audit) plus a source malware scan. A malware detection fails the version outright. | Tool | Status | Findings | Summary | |---|---|---|---| | Composer audit | Pass | 0 | | | Malware scan | Pass | 0 | | ## Licence and pricing Free. A licence is still minted on checkout and bound to your project for Composer access — no payment step. Refundable within 14 days of first purchase via https://packagento.com/account/refunds/. ## Install via Claude Code or any MCP client The Packagento MCP server can run the licence + project + Composer steps above in one tool call: ``` purchase_and_install_packages( composer_names=["samjuk/m2-module-cache-debounce"], project_id="proj_xxx" ) ``` This handles cart, checkout, licence minting, project activation, and writes auth.json credentials. Connect a client with `claude mcp add packagento https://mcp.packagento.com`. Full setup at https://packagento.com/docs/mcp-setup. ## Vendor samjuk is a Magento 2 vendor on Packagento. See https://packagento.com/samjuk.md for their full catalogue.