Slow call to `Imagick::queryFormats`

[johnbillion]

Moving this into a public ticket from this support request: https://dashboard.altis-dxp.com/#/support/ticket/6864/.

There appears to be an intermittent issue where a call to Imagick::queryFormats() is slow (~500ms). It's unclear how often this happens but there are two links to affected XRay traces in the support ticket above.

I did wonder if this call could be skipped entirely but unfortunately there doesn't appear to be any filters in WordPress core to prevent this call from occurring unless the WP_Image_Editor_Imagick class is replaced (using the wp_image_editors filter) by a custom one which doesn't perform this call.

Regardless, it might be worth investigating why this call is sometimes so slow.

[joehoyle]

Ah thanks John I also discovered this recently. Thankfully Joe McGill just got a patch committed to Core to cache this!