Heavy Resource Usage

Did you install any new plugins or something similar?

I’m only using 3 plugins:

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Akismet

I’m going to de-activate the plugins and upgrade to 2.8.1 and see how that goes.

Any thoughts on heavy resource usage not related to plugins?

After further investigation it appears that there is a loopback issue potentially with wp-cron.php.

Other culprits could be my .htaccess file, permalinks, wp-db-backup.

wp-db-backup

Do you have scheduled backups? If so, try disabling this option.

Scheduled Backup has been turned off for some time.

Do you have anything scheduled, like posts to be published?

Nothing scheduled

What version of WP are you using?

Just upgraded to 2.8.1 from 2.7