How to implement filesystem cache in WordPress

Some of caching APIs in WordPress, including transients, can make use of swappable Object Cache backend. There are ready-made implementations around for it which use file system as storage engine.

However determining if it’s worth it is another matter entirely. In usual case database is very likely to outperform disk for typical caching tasks. However there are combinations of factors out there that might make disk preferable (when data gets prohibitively large for individual database entries, etc).

Unless you can practically benchmark and determine limitations of your current setup it’s unlikely that you need dedicated file cache.

PS note that more commonly Object Cache backends use memory caches (APC, Memcache, Redis) and that unsurprisingly tends to outperforms database and disk either for caching tasks

Related Posts:

  1. Where to store PHP files created by plugin / themes
  2. Is get_option() faster than accessing get_transient()?
  3. Best practices for using the transients API
  4. Trouble with Transient API when W3TC is activated [closed]
  5. How to make dynamically-generated content searchable in WordPress?
  6. $wp_filesystem returns NULL. What are the dependencies?
  7. How can I free up the memory used by update_post_meta?
  8. How can I render shortcode so that its not cached by Caching plugins?
  9. Does WordPress’s HTTP API use any caching?
  10. Will cron job run if page loaded is being served from cache?
  11. Is using WP Transients to save external data for a plugin the best/right way?
  12. Cache directory needed for plugin
  13. Clearing cached plugin data if it is using an external object cache
  14. Files automatically added
  15. Plugin writing: access file that was just uploaded
  16. Make WordPress cache permanent for some pages until edited
  17. Will setcookie work if there is a cache plugin installed?
  18. Maximum lifetime for nonce
  19. Clearing caches on plugin uninstall
  20. “dashboard”-named PHP file doesn’t get included
  21. Is using custom table to suit business needs instead of transients a big hit to page load speed?
  22. Caching the_content calls
  23. Service Worker Uncaught (in promise) DOMException
  24. Should I use wp-content/cache or [PLUGIN_DIR]/cache?
  25. I need to refresh page to display wp_get_current_user() : why?
  26. Look for a file in a theme before loading from plugin
  27. How can I control if post updated
  28. Cleaning a filename after image sideloading a url that contains `%20`
  29. Undefined cache functions in my custom plugin
  30. Is it possible to restore an expired transient?
  31. Plugin files not updated (cache cleared)
  32. Displaying $_FILES data (simlar to $_POST)
  33. Do Not Back Up? Is there any accepted way to tell backup and clone plugins to skip a certain file? [closed]
  34. Does WP REST API cache internally executed (rest_do_request) requests?
  35. Is it mandatory to use $wpdb->prefix in custom tables
  36. add_action hook for completely new post?
  37. Is get_option function cached?
  38. How do I log plugin (cron) actions?
  39. Is there a hook for when you switch themes?
  40. Problems after wp_set_password() containing an apostrophe
  41. Error getting correct blog_id on MU from functions.php
  42. Front-End Form Submission in Shortcode
  43. Plugin Localization
  44. Error : “Updating failed: The response is not a valid JSON response” with custom shortcode
  45. array_map() for sanitizing $_POST
  46. calling jquery function on plugin page
  47. Is there a faster way than wp_insert_post to add content to a blog
  48. How to include external library in wordpress plugin
  49. Ajax in WordPress – path issue
  50. Decrease RSS cache time in plugin?
  51. How to add a custom tag in contact form 7 and change the output in email?
  52. How can I create a plugin that changes the title color of a website?
  53. How to check if Woocommerce Order number equals to post ID?
  54. Add custom element ID depending where the widget place is, sidebar or footer
  55. Two functions utilizing registration_errors filter
  56. Issue plugin commands in admin settings page
  57. My plugin class doesn’t work! [closed]
  58. Call PHP file within a plugin to activate function
  59. add_action not calling back to function
  60. Example Dashboard Widget, Cancel not working
  61. Woocommerce checkout update totals with datepicker
  62. Editing options pages?
  63. is it recommended to use WP_List_Table?
  64. Multiple Plugin best practice in Multisite
  65. wp-cron and execution of code in is_admin() included script
  66. use of do_action() without any functions attached
  67. json_decode does not work on WordPress
  68. Delist entries in the_loop
  69. esc_html__() and __() not working within arrays
  70. Uploaded attachment not set as featured image
  71. WordPress – manually relate a post to page(s)?
  72. Styles don’t load correctly. Insecure content
  73. How to use apiFetch to get author information in Gutenberg properly?
  74. Gutenberg blocks error: Each child in a list should have a unique “key” prop
  75. Can we use a library under MIT license in a WooCommerce plugin?
  76. How to display the specific post content by using POST ID
  77. Soap web service request from wordpress plugin
  78. Use options to control jQuery plugin
  79. Including template in shortcodes
  80. Is there anything special required to make a plugin work in a multisite environment?
  81. How to exclude categories from get_categories() select list inside a widget admin panel
  82. How to exclude “uncategorized” from custom categories widget?
  83. Using custom IDP with WP
  84. Trying to run a Ajax request from a checkout form in woocommerce via a custom plugin
  85. WordPress5.2.3: Better File Download Plugin validation issue
  86. How do I make secure API calls from my WordPress plugin?
  87. esc_attr() on hard coded string
  88. Creating a return url for getting data from external api
  89. WordPress Plugin Boilerplate – add actions and/or filters based on user’s role
  90. How to use functions from Woocommerce documentation?
  91. Experts opinions needed: How (in)secure is this approach?
  92. WP API users per page
  93. action callback, for action dispatched as reported by hook sniffer, not called
  94. variable created in page.php is null inside of header.php
  95. Access WordPress Tag Function From Modal
  96. how can I insert a link on login page
  97. Insert plugin html content to a specific spot in the frontpage
  98. Is Explicit Versioning a better alternative to Semantic Versioning for wordpress?
  99. Find Any Theme’s page.php File
  100. multiple record insert creating many duplicate records