Support » Plugin: W3 Total Cache » [Plugin: W3 Total Cache] WP-Cron – heavy CPU consumption?

  • Resolved karloy


    I switched from WP Super Cache to W3 Total Cache, and I’m very happy with the switch. The only issue I noticed is that WP-Cron consume significantly more CPU, and is dropping scheduled tasks (e.g. Backwpup, scheduled posts, etc.).

    As example, the daily wp-cron consumption was 9.54% 1.0785 GPU a month ago, while it’s 24.41% 21.9978 GPU after the upgrade to W3TC

    Since then, cron jobs didn’t start reliable anymore.

    I’ve seen many posts about this, without a specific answer. Is there any hot patch, or will there be an update that addresses it?


Viewing 4 replies - 1 through 4 (of 4 total)
  • Worked around it by:

    – Replacing BackWPUp (consumed up to a second page load time, measured by P3)
    – Turning off WP-Cron during each load, and scheduled a call to it hourly via a “true” cron job.

    Works great now, load is minimal.


    Plugin Author Frederick Townes


    Glad you sorted things.



    Sorry to necro a resolved issue, but I’ve been noticing that wp_cron is really hogging things on my server and I feel like it’s probably a related issue. I don’t use BackWPUp, pretty sure the only thing that I have Cron’ed is Google Sitemap.

    Not really certain how best to proceed, but this seemed like the most relevant thread.



    Forum Moderator

    As per the Forum Welcome, please post your own topic. Your problem – despite any similarity in symptoms – is likely to be completely different.

Viewing 4 replies - 1 through 4 (of 4 total)
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