Question about Page Load Times Before/After Autoptimize

  • Hi there

    This plugin seems fantastic, and works flawlessly to minify and concatenate multiple files and serve them from the /blogs.dir/ cache. However, despite the reduced number of requests and reduced data to transfer, my pages are taking consistently LONGER to load while using this plugin. I was just hoping you might be able to help me understand what might cause this.

    I *have* read the FAQ and see that you recommend using a full page caching plugin alongside yours, which I am *not* currently doing, and I totally understand that without that, I might not see a performance improvement.

    Before Autoptimize:
    Requests: 36
    Transferred (kb): 404
    Average Load time (ms over 10 trials): 626

    After Autoptimize:
    Requests: 24
    Transferred (kb): 326
    Average Load time (ms over 10 trials): 718

    Again, just curious if you could help me understand what might cause this. It’s 1/3 fewer requests, about 1/4 less data to transfer, but a 15% increase in page load time.

    Thanks for the plugin as well as your time ??

    – Jason

Viewing 4 replies - 1 through 4 (of 4 total)
  • Plugin Author Frank Goossens

    (@futtta)

    hi Jason;
    do you have a page caching plugin (or other HTML cache)?

    frank

    Thread Starter Jason LeMahieu (MadtownLems)

    (@madtownlems)

    Frank,

    Nope – we are not using a page or other HTML caching solution. I understand that you suggest it works well in conjunction with Autoptimize – I’m just trying to understand how Autoptimize by itself might lead to longer load times.

    Cheers

    Plugin Author Frank Goossens

    (@futtta)

    ah, have a look at this blogpost explaining how AO works, it should make things a bit more clear.

    the gist; with a page cache AO is only called once for that page. without a page cache AO has to at least extract & aggregate all CSS & JS and if anything changes in the aggregated CSS/ JS (esp. if you’re aggregating inline JS), AO has to re-minify everything, which is relatively costly.

    hope this clarifies,
    frank

    Thread Starter Jason LeMahieu (MadtownLems)

    (@madtownlems)

    This explains a lot – thanks for the detailed explanation!

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