The unit test is now implemented. However, it's stalled right now as definitely some admin optimisation is needed.

Going through this, we definitely need Admin Zone and CMS Zone improvements. Some of these are now done for v11, but further work is needed I think. Here are page-links currently needing optimisation...

:start (http://localhost/composr/index.php?page=start&keep_devtest=1): 0.66 seconds
site:galleries:browse:download_2 (http://localhost/composr/site/index.php?page=galleries&type=browse&id=download-2&keep_devtest=1): 0.53 seconds
site:warnings:edit (http://localhost/composr/site/index.php?page=warnings&type=edit&keep_devtest=1): 6.00 seconds
site:help (http://localhost/composr/site/index.php?page=help&keep_devtest=1): 0.53 seconds
docs:atag (http://localhost/composr/docs/index.php?page=atag&keep_devtest=1): 1.04 seconds
docs:codebook (http://localhost/composr/docs/index.php?page=codebook&keep_devtest=1): 0.71 seconds
docs:codebook_1 (http://localhost/composr/docs/index.php?page=codebook-1&keep_devtest=1): 3.21 seconds
docs:codebook_1b (http://localhost/composr/docs/index.php?page=codebook-1b&keep_devtest=1): 3.35 seconds
docs:codebook_3 (http://localhost/composr/docs/index.php?page=codebook-3&keep_devtest=1): 2.60 seconds
docs:faq (http://localhost/composr/docs/index.php?page=faq&keep_devtest=1): 1.08 seconds
docs:sup_hardcore_1 (http://localhost/composr/docs/index.php?page=sup-hardcore-1&keep_devtest=1): 0.56 seconds
docs:sup_hardcore_3 (http://localhost/composr/docs/index.php?page=sup-hardcore-3&keep_devtest=1): 0.53 seconds
docs:sup_hardcore_blocks (http://localhost/composr/docs/index.php?page=sup-hardcore-blocks&keep_devtest=1): 0.51 seconds
docs:sup_install_a_theme_in_composr (http://localhost/composr/docs/index.php?page=sup-install-a-theme-in-composr&keep_devtest=1): 0.55 seconds
docs:sup_pricing (http://localhost/composr/docs/index.php?page=sup-pricing&keep_devtest=1): 2.33 seconds
docs:tut_adv_comcode (http://localhost/composr/docs/index.php?page=tut-adv-comcode&keep_devtest=1): 0.67 seconds
docs:tut_adv_galleries (http://localhost/composr/docs/index.php?page=tut-adv-galleries&keep_devtest=1): 0.52 seconds
docs:tut_comcode (http://localhost/composr/docs/index.php?page=tut-comcode&keep_devtest=1): 0.75 seconds
docs:tut_designer_themes (http://localhost/composr/docs/index.php?page=tut-designer-themes&keep_devtest=1): 1.26 seconds
docs:tut_disaster (http://localhost/composr/docs/index.php?page=tut-disaster&keep_devtest=1): 0.63 seconds
docs:tut_email (http://localhost/composr/docs/index.php?page=tut-email&keep_devtest=1): 0.51 seconds
docs:tut_facebook (http://localhost/composr/docs/index.php?page=tut-facebook&keep_devtest=1): 0.86 seconds
docs:tut_fields (http://localhost/composr/docs/index.php?page=tut-fields&keep_devtest=1): 1.77 seconds
docs:tut_install (http://localhost/composr/docs/index.php?page=tut-install&keep_devtest=1): 0.53 seconds
docs:tut_intl (http://localhost/composr/docs/index.php?page=tut-intl&keep_devtest=1): 0.81 seconds
docs:tut_members (http://localhost/composr/docs/index.php?page=tut-members&keep_devtest=1): 0.69 seconds
docs:tut_mobile_sdk (http://localhost/composr/docs/index.php?page=tut-mobile-sdk&keep_devtest=1): 5.08 seconds
docs:tut_msn (http://localhost/composr/docs/index.php?page=tut-msn&keep_devtest=1): 0.72 seconds
docs:tut_optimisation (http://localhost/composr/docs/index.php?page=tut-optimisation&keep_devtest=1): 1.27 seconds
docs:tut_permissions (http://localhost/composr/docs/index.php?page=tut-permissions&keep_devtest=1): 0.59 seconds
docs:tut_programming (http://localhost/composr/docs/index.php?page=tut-programming&keep_devtest=1): 1.94 seconds
docs:tut_software_feedback (http://localhost/composr/docs/index.php?page=tut-software-feedback&keep_devtest=1): 1.42 seconds
docs:tut_structure (http://localhost/composr/docs/index.php?page=tut-structure&keep_devtest=1): 0.76 seconds
docs:tut_tempcode (http://localhost/composr/docs/index.php?page=tut-tempcode&keep_devtest=1): 1.47 seconds
docs:tut_themes (http://localhost/composr/docs/index.php?page=tut-themes&keep_devtest=1): 0.77 seconds
docs:tut_webapp (http://localhost/composr/docs/index.php?page=tut-webapp&keep_devtest=1): 0.66 seconds
docs:tut_webhosting (http://localhost/composr/docs/index.php?page=tut-webhosting&keep_devtest=1): 0.69 seconds
forum:topicview:id=11 (http://localhost/composr/forum/index.php?page=topicview&id=general-chat%2Fh&keep_devtest=1): 0.50 seconds
buildr:buildr (http://localhost/composr/buildr/index.php?page=buildr&keep_devtest=1): 1.25 seconds
cms:*
adminzone:*

I'll deal with everything outside cms and adminzone, then have a look there also.

This is now done, there have been huge improvements. Taking the scientific (broadly measured) approach definitely yielded many optimisation targets I was not aware of.

All pages on the sitemap of bundled addons now load in under 0.5 seconds.

This is without the persistent caching on, and with all the non-bundled addons installed, and on PHP5. I'd expect a 0.2 minimum on live hosting (persistent cache, reduced addons, PHP7), so that's a 2 second maximum page load time for 10x slow servers.