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I would like to implement a custom cache for all the feeds in my site. The rss requests are very intensive and I have a big db load.

Do anyone know of a good action before running the rss query so I can cache it? I'm using memcahed and all the feeds should be cached for 1 hour.

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WordPress already caches feeds to an extent, but for better caching install one of the caching plugins. E.g. W3 Total Cache has the option to cache RSS Feeds.

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